Mazda 3 Coolant Tank Overflow Bottle BK BL BM BN 2003-2018 4 Cyl MBN-34300

Mazda 3 Coolant Tank Overflow Bottle BK BL BM BN 2003-2018 4 Cyl MBN-34300

Product Rating:

233 Units Sold

Original price was: $85.00.Current price is: $63.30. (Inc. GST)

Brand new Mazda 3 Coolant Tank Overflow Bottle for sale, suitable for BK BL BM BN models between 2003 & 2018 with a 4 Cyl engine. This particular bottle also comes with the cap. 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 express 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
2003 2004 2005 2006 2007 2008 2009 2010 BK BL BM

Description

High Quality Manufacturers 

Mazda 3 Coolant Tank

  • Bottle & Cap
  • High Quality Replacement Unit 
  • 100% Leak Tested 
  • Exact Fitment (No Modifications) 
  • Mazda 3 Coolant Tank
  • Mazda 3 Overflow Bottle
  • Part Number MBN-34300

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 Mazda 3 Coolant Tank

Some Additional information about the Product, and the Car. 

Mazda 3 Coolant Tank

The Mazda 3 is one of the most dependable cars on the market, so when it’s time to replace your coolant tank there’s no choice better than a Mazda 3 Coolant Tank. Not only will this replacement part last longer than cheaper options, but you’ll also enjoy making less frequent trips to the mechanic. Getting the Mazda 3 Coolant Tank is the best way to ensure that your Mazda stays in great shape for years to come.

Mazda 3 Coolant Tank Overflow Bottle BK BL BM BN 2003-2018 4 CylMazda 3 Overflow Bottle

Have you been searching for the Mazda 3 Overflow Bottle? If so, then your search has come to an end. We have these Mazda 3 overflow bottles in stock and they are the perfect way to get your Mazda up and running again quickly. You don’t need to worry about buying anything else with your Mazda 3 overflow bottle purchase because it comes with everything you need. It’s made of quality material as well so you know it will last for years to come. Don’t let a malfunctioning Mazda 3 be a problem any longer – pick up one of our Mazda 3 overflow bottles today!

Mazda 3 Coolant Tank with a Replacement Warranty of 3 Years

The MBN-34300 is a replacement coolant expansion tank designed for Mazda 3 models equipped with 2.0L and 2.3L 4-cylinder engines. This tank is compatible with various Mazda 3 variants produced between 2003 and 2018, including the BK, BL, BM, and BN models. It serves as the coolant reservoir, maintaining the proper level of coolant in the system and preventing overheating.

Our Video Tutorials allow people to save Coolant Tank replacement cost. If you’re looking for a replacement Coolant Tank for your Mazda 3 then Parts Factory Australia can help you out! Our expert staff have years of experience in dealing with Mazda products so they know exactly what parts will fit perfectly! They also offer free shipping as well. Mazda 3 Overflow Bottle

Best Aftersales ServicesMazda 3 Overflow Bottle

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.

Peace of Mind to Buy Quality Mazda 3 Coolant Tank

If you need a new Mazda 3 Coolant Tank, 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.

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. MBN-34300Mazda 3 Overflow Bottle

Part Numbers (See Below)

Main Part Numbers: MBN-34300

Any other Recorded Part Numbers: May be many other numbers.

Comments on Part Number Importance: Simply confirm your car is the car mentioned in our title, and compare the bottle physically.

 

 

 

 

 

 

2 reviews for Mazda 3 Coolant Tank Overflow Bottle BK BL BM BN 2003-2018 4 Cyl MBN-34300

5.0
Based on 2 reviews
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1-2 of 2 reviews
  1. Great product

    (0) (0)
  2. Seems to be as good as the OEM tank. Very happy with it.

    (0) (0)
    • Better! Our parts are engineered equal or ABOVE o.e.m specs. Thanks

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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
Mazda 3 2003
Mazda 3 2004 - 2008
Mazda 3 2009 - 2010
Mazda 3 2013 - 2017

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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.

This coolant overflow bottle is designed for Mazda 3 models with 4-cylinder engines, including 2.0L and 2.3L variants, covering BK, BL, BM, and BN series produced between 2003 and 2018. Vehicle year, engine size, and model series should be confirmed before ordering to ensure correct fitment.

Yes, this replacement coolant tank (part number MBN-34300) is supplied with a 3-year replacement warranty as stated in the product information.

The product information states that free shipping is offered. Availability may depend on delivery location, so shipping details should be reviewed before completing the order.

The coolant overflow bottle acts as a reservoir for excess coolant as it expands and contracts with temperature changes. It helps maintain the correct coolant level in the cooling system and supports proper engine temperature regulation.

Installation guidance is available in the form of video tutorials or downloadable PDF instructions. Vehicle details such as model and year should be provided to access the correct installation material.

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