Holden Commodore Alternator Suit VT-VY Models LS1 5.7L Petrol V8 99-2004 ~ In Black A3TA7991

Holden Commodore Alternator Suit VT-VY Models LS1 5.7L Petrol V8 99-2004 ~ In Black A3TA7991

Product Rating:

224 Units Sold

Original price was: $300.00.Current price is: $228.30. (Inc. GST)

Brand new Holden Commodore Alternator for sale, suitable for VT-VY models between 1999 & 2004 with a LS1 5.7L Petrol V8 engine. The part number for this alternator is A3TA7991. This particular alternator is black in colour. We take pride in simplifying the process of replacing parts on your vehicle, which is why we assure you of a seamless and effortless fitment of this product to your vehicle. Our products are made from high-quality materials designed to surpass the OEM quality standard. This product includes a 3-year warranty and free postage Australia-wide, meaning you will receive your desired goods within 2-3 business days. Furthermore, we provide a valuable resource for your convenience – a complimentary online installation tutorial video readily available on our YouTube channel.

At Parts Factory Australia, we stand behind every product we sell. That’s why every part comes with our 3-Year No Bullsh*t Warranty. If the part fails within 3 years due to a manufacturing defect, we’ll replace it or refund it — no fine print, no runarounds, no waiting weeks for answers.

It covers all parts we sell and all genuine faults — not damage from dodgy installs, crash damage, or backyard modifications. Just send us your proof of purchase and show us what went wrong — we’ll sort it fast.

We move through stock quickly, so you’re not getting old junk from the back of a warehouse. Our parts are fresh, current, and built to last — and if they don’t, we’ll make it right. That’s the Parts Factory promise. Simple. Honest. Aussie.

We prioritise fast and reliable shipping so you can get back on the road without the wait. Orders placed during business hours are dispatched immediately for fast turnaround.

✔️ Free Express Post on orders under 1kg – arrives in 2 days (3 days for WA)
✔️ Standard Delivery for any part – 2 to 4 days Australia-wide
✔️ Need it sooner? Upgrade to Express for just $15 flat-rate anywhere in the country

No delays, no excuses — just quick delivery and quality parts at your door. 

  • Trusted Aussie Supplier – Born and based in Australia, we understand the urgency of keeping your vehicle on the road. No offshore call centres, no slow imports — just fast, local service.

  • Fast & Free Shipping – Most parts are dispatched same-day with free express shipping on smaller orders. Need it quicker? Flat-rate express available. We don’t keep you waiting.

  • 3-Year No Bullsh*t Warranty – We stand by what we sell. If it fails from a genuine fault, we replace it or refund it. No excuses, no long waits — just honest backup.

  • Fresh, Up-to-Date Stock – We turn stock over quickly, so you always get the latest, most up-to-date versions — not old, dusty parts that have been sitting on shelves for years.

  • OEM Fitment, Affordable Price – We partner with medium-to-high-tier manufacturers to deliver OEM-matching quality without the dealership price tag.

  • Real People, Real Knowledge – Our team comes from hands-on, wrecking-yard backgrounds — we know cars, not just part numbers. Call us, message us, or visit — we’re here to help.

In Stock: Free Shipping 1-3 Days
1999 2000 2001 2002 2003 2004 A3TA7991 ls1

Description

High Quality Manufacturers 

LS1 Alternator

  • 140A Max Amperage
  • High Quality Replacement Unit 
  • 3 Year Warranty
  • Bosch Style Plug
  • Exact Fitment (No Modifications) 
  • LS1 Alternator
  • Vy V8 Alternator
  • Part Number A3TA7991

Same Day Ship Away on All Orders

Industry Leading Postage Speed

  • All Products are Shipped within the Same Business Day.
  • Most of our Products Qualify for Free Express Postage.
  • International Postage Available on Checkout 

Customer Quality Satisfaction is our Priority

Strict Quality Control

  • All Manufacturers are Tested and Chosen Based on Quality.
  • All Products include a 3 Year Local Warranty which Shows our Product Confidence.
  • Our Products are made from the Highest Quality Materials. 
  • We have a Direct Fitment Guarantee with all Products.

The Future of Auto Parts

Australian Owned, Australian Operated

  • All Parts are Sent from an Australian Warehouse Located in QLD
  • Fair Dinkum Aussie Service with Priority After Sale Service.
  • Our Mission is to Save the Australian Public Money, and Provide ease of service for Automotive Car Parts. 

Installation Tutorial Videos Included with All Products

DIY Installation Tutorial Video's

  • Save More Money by Installing Your Own Car Parts!
  • Our step-by-step tutorials guide you from start to finish—no guesswork, just clear instructions.
  • Best of all? The videos are 100% free!

Learn More about LS1 Alternator

Some Additional information about the Product, and the Car. 

LS1 Alternator

Holden Commodore LS1 Alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature. Occasionally, a linear alternator or a rotating armature with a stationary magnetic field is used. In principle, any AC electrical generator can be called an alternator, but usually, the term refers to small rotating machines driven by automotive and other internal combustion engines. A3TA7991

Holden Commodore Alternator for LS1 5.7L Petrol V8 99-2004 VT-VY ~ In BlackVY V8 Alternator

The alternator is a device that produces electricity. It is a device that converts mechanical energy to electrical energy. The alternator is an electrical generator which converts mechanical energy to electrical energy in the form of alternating current (AC). If you are looking for Vy V8 Alternator for your Holden Commodore, Parts factory Australia has got you covered. We provide the highest quality alternators for Holden Commodores.

LS1 Alternator with a Replacement Warranty of 3 Years

Ensure reliable engine performance with the A3TA7991. This high-quality component is designed to meet the demands of your vehicle, offering enhanced efficiency and durability. With a precise fit and robust construction, it’s built to support smooth operation and help maintain your engine’s optimal performance A3TA7991

Our Video Tutorials allow people to save Alternator replacement cost. If you’re looking for a replacement Alternator for your LS1 engine then Parts Factory Australia can help you out! Our expert staff have years of experience in dealing with Holden products so they know exactly what parts will fit perfectly! They also offer free shipping as well. Vy V8 Alternator

Best Aftersales ServicesVY V8 Alternator

When you purchase car parts from Parts Factory Australia, you get the best after sales services include warranty and return system. When you buy anything from the Parts Factory, we want to make sure that you are happy with your purchase. That’s why our extensive warranties and return policies are there for you. We know that sometimes things don’t go as planned, but we’ll always do our best to make sure that you are taken care of. A3TA7991

Peace of Mind to Buy Quality LS1 Alternator

If you need a new LS1 Alternator, we’ve got you covered! We know that when it comes to your car, peace of mind is everything. That’s why we only sell the best quality parts for your car: so that you can relax and enjoy the rest of your day knowing that your vehicle is in perfect working order. A3TA7991

Get Free Installation Guide via Video Tutorials or PDF Documents

If you are a reader, you can get installation instruction via PDF notes which you can print and retain as long as you need them. Just go to the website of Parts Factory Australia and select the model of your car. Then choose the type of the product that you need to install in your car. The next step is to fill up the form with all the information about your vehicle, such as make, model, year of manufacture etcetera. A3TA7991VY V8 Alternator

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LS1 Alternator – Powering Your Vehicle with Reliability

The LS1 Alternator is a crucial component of your vehicle’s electrical system, ensuring a steady supply of power to charge the battery and run essential systems like lights, radio, and climate control. As a high-performance alternator designed for LS1 engines, it delivers the reliability needed to maintain optimal vehicle operation. When your alternator starts to show signs of wear, such as dimming lights or slow-starting electronics, it’s important to replace it with a high-quality LS1 Alternator to avoid breakdowns. A3TA7991

At Parts Factory Australia, we provide LS1 Alternators that meet the exact specifications for your engine, offering a perfect fit and long-lasting performance. Whether you’re upgrading your alternator for enhanced electrical capacity or replacing a failing unit, our LS1 Alternators ensure your vehicle continues running smoothly and efficiently. A3TA7991

Why Choose a Quality LS1 Alternator?

Choosing a high-quality LS1 Alternator is vital to ensuring the reliability of your vehicle’s electrical system. A failing alternator can lead to a drained battery, poor electrical performance, and even leave you stranded on the road. Replacing your old alternator with a dependable unit helps maintain the balance between battery charging and power consumption. A3TA7991

Here are the key reasons to upgrade to a quality LS1 Alternator:

  • Enhanced Performance: Provides a stable power supply to all electrical components, ensuring your vehicle runs efficiently.
  • Improved Durability: Built to withstand the demands of high-performance engines, ensuring long-lasting use under various conditions.
  • Exact Fitment: Designed specifically for LS1 engines, offering an easy installation with no modifications required.
  • Preventative Maintenance: Replacing an old alternator prevents electrical system failures, saving you from costly repairs down the line.
  • Increased Battery Life: A reliable alternator ensures your battery is properly charged, extending its lifespan and reducing replacement costs.

Vy V8 Alternator – Keeping Your Vehicle Electrically Charged

The Vy V8 Alternator plays a vital role in maintaining the electrical system of your V8-powered vehicle, ensuring your battery remains charged and all electrical components function properly. Over time, alternators can wear out due to constant use, leading to poor battery charging and reduced efficiency in your car’s electronics. A failing alternator can result in dim lights, a weak battery, or even engine stalling. A3TA7991

At Parts Factory Australia, we offer high-performance Vy V8 Alternators designed to meet the specific needs of V8 engines. Our alternators are manufactured to ensure maximum durability, handling the electrical demands of powerful engines, and delivering consistent performance. By replacing your old or faulty alternator, you’ll keep your vehicle running smoothly and avoid electrical failures. A3TA7991

Benefits of Upgrading to a Vy V8 Alternator

Upgrading to a new Vy V8 Alternator ensures that your vehicle’s electrical system remains in top condition, preventing power issues that could compromise your driving experience. A quality alternator is essential for maintaining the efficiency of your battery and powering all electronic components, especially in a high-performance V8 vehicle. A3TA7991

Here’s why upgrading to a Vy V8 Alternator is a smart decision:

  • Reliable Power Supply: Keeps your vehicle’s battery charged and all electrical components working efficiently.
  • Long-Lasting Performance: Built with durable materials, our Vy V8 Alternators are designed to handle the increased electrical demands of V8 engines.
  • Prevents Electrical Failures: A new alternator eliminates the risk of electrical malfunctions, ensuring smooth and reliable operation.
  • Exact Fit: Designed for easy installation in Vy V8 vehicles, our alternators offer a direct replacement without the need for modifications.
  • Improved Battery Health: A properly functioning alternator ensures your battery stays charged, extending its life and reducing the need for replacements. A3TA7991

With Parts Factory Australia’s high-quality Vy V8 Alternators, you can trust that your vehicle’s electrical system will remain reliable, giving you peace of mind on every drive. A3TA7991

Where to Find the Best LS1 Alternator for Sale

Finding a high-quality LS1 alternator for sale can be crucial for maintaining the performance of your LS1 V8 engine. It’s important to select a replacement that meets or exceeds OEM specifications to ensure reliable operation. Look for suppliers that provide alternators with a solid warranty, as this offers peace of mind regarding the product’s durability. Comparing features like amperage output and compatibility with your specific model can help you make an informed choice. A3TA7991

A trusted supplier like Parts Factory AUS offers a range of alternators specifically designed for LS1 engines. With free express shipping and a 3-year warranty, they ensure that you get a reliable product at a competitive price. Shopping with a reputable provider helps you avoid potential issues and ensures that your vehicle remains in top shape. A3TA7991

Benefits of Buying an LS1 Alternator for Sale from Parts Factory AUS

Purchasing an LS1 alternator for sale from Parts Factory AUS comes with several advantages. Their alternators are built to handle the high power demands of LS1 V8 engines, making them a reliable choice for Holden Commodores. A3TA7991

Key benefits include:

  • Direct Fitment: Designed for a seamless installation in LS1 models, saving time and effort.
  • 3-Year Warranty: Guarantees durability and long-term performance.
  • High Output: Delivers a stable power supply to all vehicle electronics.
  • Free Express Shipping: Ensures you receive your alternator quickly.
  • Detailed Installation Guides: Access to video tutorials for easy DIY installation.

Choosing Parts Factory AUS means you are investing in a product that combines quality, convenience, and excellent customer service. A3TA7991

Why a Holden LS1 Alternator is Essential for Your Vehicle’s Performance

The Holden LS1 alternator is a critical component for maintaining the health of your vehicle’s electrical system. It supplies power to the battery and other electrical components, ensuring everything from headlights to the radio operates smoothly. A failing alternator can lead to dim lights, battery drain, or even a complete breakdown if not addressed in time. A3TA7991

By replacing a worn-out alternator with a new one, you can prevent these issues and maintain your vehicle’s reliability. A high-quality alternator ensures that your engine continues to perform at its best, making it a vital part of any LS1 setup. A3TA7991

Shop for High-Quality Holden LS1 Alternators at Parts Factory AUS

Parts Factory AUS provides top-notch Holden LS1 alternators designed for the specific needs of V8 engines. Their alternators are built for durability, ensuring that they can withstand the high demands of the LS1 engine.

Reasons to choose Parts Factory AUS for your Holden LS1 alternator:

  • Exact Compatibility: Designed to fit seamlessly with Holden Commodore models.
  • Enhanced Durability: Built from robust materials for long-term use.
  • 3-Year Warranty: Confidence in the product’s reliability.
  • Fast Shipping: Receive your replacement quickly with free express delivery.
  • Support and Tutorials: Access to helpful installation videos for easy replacements.

With Parts Factory AUS, you get a product that is both reliable and tailored to your vehicle’s needs, ensuring smooth performance. A3TA7991

Common Issues with a VY LS1 Alternator and How to Fix Them

A VY LS1 alternator can face several common issues, such as a failing diode, worn-out bearings, or inconsistent power output. These problems can cause symptoms like dimming lights, strange noises from the engine bay, or even a drained battery. Identifying these signs early can help prevent more serious issues with your vehicle’s electrical system. A3TA7991

Fixing a faulty alternator usually involves replacing it with a new, high-quality unit. This ensures that your VY Commodore maintains a steady power supply and prevents further damage to the battery or other components. Regular inspection and timely replacement are key to keeping your vehicle running smoothly.

Reliable VY LS1 Alternators Available at Parts Factory AUS

If you’re looking for a dependable VY LS1 alternator, Parts Factory AUS offers a range of options that provide consistent performance. Their alternators are specifically designed for Holden Commodore VY models, ensuring easy installation and long-lasting results. A3TA7991

Key benefits include:

  • Direct Replacement: Fits perfectly into VY LS1 models without modification.
  • High-Performance Output: Provides stable power for all vehicle electronics.
  • 3-Year Warranty: Assurance of quality and reliability.
  • Free Express Shipping: Fast delivery across Australia.
  • Easy Installation: Access to guides and video tutorials.

With Parts Factory AUS, you can ensure that your VY LS1 alternator replacement meets the highest standards of quality and performance. A3TA7991

How to Choose the Right LS1 Alternator for Your Vehicle

Selecting the right LS1 alternator for your vehicle involves considering factors like amperage output, build quality, and compatibility with your specific LS1 engine model. A higher amperage alternator can better handle the electrical demands of additional accessories like upgraded sound systems or lighting. It’s also important to choose an alternator built with durable materials to withstand the high heat generated by V8 engines.

Ensuring that the alternator is a direct fit for your LS1 model simplifies the installation process, saving you time and effort. Opt for a product that comes with a warranty to ensure that you are covered in case of any defects or issues.

Why Upgrade to a High-Performance LS1 Alternator from Parts Factory AUS

Upgrading to a high-performance LS1 alternator from Parts Factory AUS can significantly enhance your vehicle’s electrical system. These alternators are designed to provide a stable and consistent power supply, even under heavy load conditions. A3TA7991

Benefits of upgrading include:

  • Increased Amperage: Handles additional electrical accessories without strain.
  • Enhanced Reliability: Reduces the risk of electrical failures and battery issues.
  • Direct Fitment: Easy installation with no modifications required.
  • 3-Year Warranty: Offers protection against manufacturing defects.
  • Quick Delivery: Free express shipping ensures minimal downtime.

Choosing a high-performance alternator ensures that your LS1 engine remains in peak condition, delivering smooth and uninterrupted power.

The Importance of a Well-Functioning Vy V8 Alternator in Your Car

A properly working Vy V8 alternator is crucial for the overall performance of your Holden Commodore. It ensures that the battery remains charged and that all electrical systems, including lights, radio, and power windows, operate correctly. A malfunctioning alternator can lead to a drained battery, dimming headlights, or even stalling, which can pose a safety risk. A3TA7991

Replacing a failing alternator with a high-quality unit helps to maintain the vehicle’s reliability and ensures that you don’t encounter unexpected breakdowns. Regular checks can help identify potential issues before they become major problems. A3TA7991

Top Reasons to Buy a Vy V8 Alternator from Parts Factory AUS

Parts Factory AUS is a trusted supplier of Vy V8 alternators, offering products that are built to withstand the demands of V8 engines. Their alternators are designed for long-lasting performance and are easy to install.

Key benefits of choosing Parts Factory AUS:

  • Precision Fit: Designed for seamless compatibility with Vy V8 models.
  • Durable Construction: Made from high-quality materials to handle daily use.
  • 3-Year Warranty: Guarantees the reliability of the alternator.
  • Free Express Shipping: Quick delivery, reducing vehicle downtime.
  • Installation Support: Access to video tutorials for a smooth replacement process.

With Parts Factory AUS, you can ensure that your Vy V8 alternator replacement is both efficient and reliable, keeping your vehicle in top condition.

LS1 Alternator – Premium Replacement for V8 Engines at Parts Factory AUS

The LS1 alternator is critical to your vehicle’s electrical system, especially when you have a high-performance V8 engine. Its primary role is to convert mechanical energy from the engine into electrical energy, charging the battery and supplying power to the vehicle’s electrical components. Over time, alternators can wear out, reducing efficiency and causing electrical problems such as dimming lights or a drained battery. Replacing the old alternator with a high-quality LS1 alternator ensures that your vehicle’s electrical system continues operating optimally.

At Parts Factory AUS, we offer top-of-the-line LS1 alternators designed specifically for V8 engines. These alternators are built to meet or exceed OEM standards, providing reliable performance and durability. Upgrading your LS1 alternator ensures your engine operates smoothly and efficiently, providing consistent power to all your vehicle’s electrical components. A3TA7991

How a New LS1 Alternator Improves Your Engine’s Performance and Power Efficiency

Replacing your LS1 alternator offers several benefits for both engine performance and overall vehicle efficiency:

  • Improved Electrical System Performance: A new alternator ensures that your battery remains properly charged, powering all electrical components like lights, air conditioning, and stereo systems without issue.
  • Enhanced Engine Efficiency: A new alternator optimises your engine’s power, ensuring that the alternator isn’t putting unnecessary strain on the engine.
  • Increased Power Output: A reliable alternator ensures your engine has enough electrical power to operate at peak performance, especially during demanding conditions like high-speed driving.
  • Long-Term Durability: High-quality LS1 alternators are built to last, reducing the frequency of replacements and ensuring consistent power delivery for years.
  • Prevents Electrical Failures: A functioning alternator prevents power failures or battery drain, avoiding the risk of being stranded with a dead battery.

Upgrading to a new LS1 alternator from Parts Factory AUS ensures that your V8 engine remains at peak power and efficiency, contributing to a smoother, more reliable driving experience.

LS1 High Output Alternator – Ensure Peak Performance for Your V8 Engine

The LS1 High Output Alternator is designed to deliver the extra electrical power your high-performance V8 engine demands. Whether you’re powering additional accessories, keeping your lights bright, or running your vehicle’s air conditioning and audio systems, this alternator ensures that your battery remains fully charged and all electrical components run smoothly. Upgrading to a high-output alternator is especially important for LS1 engines, which often have higher electrical demands due to enhanced performance and aftermarket modifications.

This alternator is engineered to provide maximum power output while maintaining efficiency, ensuring your vehicle’s electrical system remains in optimal condition. Replacing a standard alternator with an LS1 high-output version boosts your vehicle’s reliability and performance, keeping your engine running at its best.

Why Upgrading to an LS1 High Output Alternator Enhances Electrical System Reliability

Upgrading to an LS1 High Output Alternator provides several critical benefits:

  • Maximized Electrical Capacity: Handles additional accessories and aftermarket electrical demands without strain.
  • Improved Performance: Ensures your LS1 engine operates at peak efficiency with a reliable power supply.
  • Enhanced Battery Life: Keeps the battery appropriately charged, extending its lifespan.
  • Reduced Risk of Electrical Failures: Prevents power surges and dips that could compromise your vehicle’s electronics.
  • Increased Durability: Built to withstand the high demands of high-performance V8 engines, ensuring long-term reliability.

By upgrading to the LS1 High Output Alternator, you ensure that your vehicle’s electrical system can reliably support your engine’s performance needs.

VT V8 Alternator – Designed for High Durability and Optimal Power Delivery

The VT V8 Alternator is an essential component for maintaining the smooth operation of your V8 engine. Specifically designed for the VT series, this alternator ensures that your vehicle’s electrical system remains stable and reliable, even under the most demanding conditions. Whether navigating through stop-and-go traffic or cruising on the open highway, the VT V8 Alternator delivers consistent power to your vehicle’s critical systems, including headlights, air conditioning, and entertainment systems, ensuring everything runs smoothly.

Crafted with durability in mind, this alternator is built to handle the high-output demands of your V8 engine, ensuring optimal power delivery for long-lasting vehicle performance. Its robust construction guarantees reliability, even under heavy load, making it a perfect choice for those looking to keep their vehicle’s electrical systems running at peak performance, mile after mile.

Benefits of Replacing Your VT V8 Alternator for Consistent Engine Performance

Replacing your VT V8 Alternator offers a range of essential benefits:

  • Reliable Power Supply: Ensures consistent power to your vehicle’s electrical components, enhancing performance.
  • Enhanced Engine Performance: Maintains optimal efficiency in your engine, reducing the strain on the motor and battery.
  • Prevents Electrical Failures: A new alternator helps eliminate the risk of voltage drops, which can lead to engine or electrical component failures.
  • Long-Term Durability: Built to withstand the heavy load requirements of V8 engines, ensuring longevity.
  • Quick Installation: Easy to install as a direct replacement, minimizing downtime.

Choosing to replace your VT V8 Alternator ensures that your vehicle runs at its best provides consistent performance, and prevents electrical issues down the road.

LS1 140 Amp Alternator – Unleash Maximum Power for Your LS1 Engine

The LS1 140 Amp Alternator is specifically engineered to meet the power demands of high-performance LS1 engines, offering an upgraded power supply for the engine and its electrical components. With an increased amperage rating, this alternator ensures that your vehicle’s battery stays fully charged, allowing all electrical systems—such as your stereo, lighting, and air conditioning—to operate at their peak performance, even during high-load situations.

Built to handle the increased power requirements of your LS1 engine, this high-performance alternator guarantees maximum efficiency. It ensures that your vehicle remains reliable, whether you’re on daily commutes or pushing the limits during performance driving. Its durable construction and optimized design balance power and reliability, keeping your vehicle’s electrical systems running smoothly in any driving condition.

Why the LS1 140 Amp Alternator is Essential for Enhanced Electrical Capacity

The LS1 140 Amp Alternator offers the following key benefits:

  • Increased Power Output: Supports more powerful electrical accessories and systems without compromising performance.
  • Improved Engine Efficiency: Helps reduce strain on the engine by efficiently managing the vehicle’s electrical demands.
  • Extended Battery Life: Ensures the battery remains properly charged, prolonging its lifespan.
  • Reliable Performance: Delivers consistent power output even under high-demand conditions.
  • Durability: Built to withstand the higher electrical demands of LS1 engines, ensuring long-lasting performance.

Upgrade to the LS1 140 Amp Alternator for improved electrical capacity and optimal engine performance.

LS1 Alternator High Output – Upgrade Your Vehicle’s Electrical System for Ultimate Performance

The LS1 Alternator High Output is an essential upgrade for high-performance LS1 engines. Designed to meet the increasing power demands of vehicles with numerous electrical components, this high-output alternator ensures that your engine’s electrical system operates flawlessly. Whether running additional accessories like advanced lighting, audio systems, or heavy-duty HVAC systems, the LS1 Alternator High Output delivers consistent and reliable power to your vehicle’s electrical components.

Upgrading to this high-output alternator provides the stability your electrical system needs, especially when your vehicle is under heavy load or during performance driving. It ensures that your battery remains fully charged, preventing power issues that could interfere with your driving experience.

How the LS1 Alternator High Output Ensures Uninterrupted Power for All Vehicle Systems

The LS1 Alternator High Output is designed to handle the high electrical demands of high-performance engines, ensuring that your vehicle operates smoothly, even under demanding conditions:

  • Maximized Electrical Output: Delivers increased amperage to power multiple accessories and electronics without strain.
  • Improved Engine Efficiency: Reduces the load on your engine, ensuring consistent performance while keeping electrical systems stable.
  • Reliable Power Supply: Keeps the battery charged, ensuring that all systems, from lights to air conditioning, operate efficiently.
  • Increased Vehicle Performance: Helps maintain engine power and efficiency by keeping voltage consistent.
  • Durable and Long-Lasting: Built to withstand high-performance and heavy-duty driving conditions, offering long-term reliability.

Upgrading to the LS1 Alternator High Output guarantees that your vehicle’s electrical system remains stable and efficient, ensuring maximum performance and reliability on the road.

LS1 High Amp Alternator – Perfect for Vehicles Demanding More Power

The LS1 High Amp Alternator is designed for vehicles that demand more electrical power, particularly those with aftermarket upgrades or high electrical consumption. With its increased amperage, this alternator ensures that your battery stays fully charged and that your vehicle’s electrical components function properly, even under heavy load. Perfect for cars equipped with high-performance audio systems, lighting, or other power-hungry accessories, this alternator provides the reliable, high-output power needed to keep everything running smoothly.

This high-amp alternator is a direct fit for LS1 engines, making it a seamless upgrade to your vehicle’s electrical system. Whether you’re pushing your vehicle to its limits or simply need more power for daily driving, the LS1 High-Amp Alternator is the perfect solution.

Why Choose a High Amp LS1 Alternator for Peak Electrical Performance

The LS1 High Amp Alternator provides essential benefits for high-performance vehicles, ensuring that your car operates at its best, even when you’re demanding more power from its electrical system:

  • Increased Amperage: Delivers more power to your vehicle’s electrical system, efficiently handling multiple accessories.
  • Improved Battery Efficiency: This keeps the battery fully charged, ensuring that all electrical components operate without draining the battery.
  • Enhanced Vehicle Performance: Maintains a steady power supply, preventing power dips or surges that could compromise performance.
  • Durability and Reliability: Built for heavy-duty use, this alternator is designed to last through harsh driving conditions and high-demand situations.
  • Perfect Fitment: Direct replacement for LS1 engines, offering quick and hassle-free installation.

Choose the LS1 High Amp Alternator to enhance your vehicle’s electrical system and ensure it runs at peak efficiency, no matter the conditions.

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Part Numbers (See Below)

Main Part Numbers: A3TA7991

Any other Recorded Part Numbers: 2058857. A003TA7991 A3TA7991 ANJ106 ANJ106GQ

Comments on Part Number Importance: Not important. Instead, confirm your car is a 5.7L V8 LS1 with a 2 pin plug. If it is, these are the only details that you much confirm.

 

 

 

 

 

 

5 reviews for Holden Commodore Alternator Suit VT-VY Models LS1 5.7L Petrol V8 99-2004 ~ In Black A3TA7991

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  1. Yet to install it but see how it goes. Looks the part.

    (0) (0)
  2. Very well priced items and good quality

    (0) (0)
  3. ALL WAS GREAT PERFECT FIT AND PRICE THANK YOU

    (0) (0)
  4. Happy with product! Car runs

    (0) (0)
  5. Quality products at affordable prices. Happy to support Australian business 👌 returning customer 👍

    (1) (0)
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This Part Fits the Following Vehicles:

Any car displayed below, is compatible with this part.

Make Model Year
Make Model Year
Holden Commodore 1999 (VT)
Holden Commodore 2000 (VX)
Holden Commodore 2001 (VX)
Holden Commodore 2002 (VY)
Holden Commodore 2003 (VY)

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FAQ

Most Frequent Questions and Answers

Shipping varies from location to location. However, If you wish to know more Specific details, please click here to see our shipping page.

If you wish to return any good for any reason, please contact us on 0423 113 802. Or, please head over to our Returns page to find our more information.

It is listed as a replacement alternator for Holden Commodore VT–VY models fitted with the LS1 5.7L petrol V8 from 1999 to 2004. Please confirm the vehicle’s exact model/year and alternator plug and mounting style before ordering.

The product page is labeled “LS1 Alternator 140A” in the URL and naming. If amperage output is critical (e.g., upgraded audio or accessories), confirm the output rating shown on the alternator label or the supplier’s technical details before installation.

Confirm pulley/belt alignment, electrical connector type, mounting points, and battery/charging system condition (battery health and cable connections). If installation guidance is needed, the description indicates video or PDF installation instructions may be available for alternator replacement.

The listing identifies the alternator as A3TA7991. Match this number to the existing alternator (or cross-reference with the vehicle’s alternator number) to confirm compatibility.

The description states a 3-year replacement warranty. Warranty terms can vary by seller (coverage, exclusions, proof of purchase), so review the written warranty policy provided with the order.

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