Description
The right part.
Down to the detail.
New aftermarket starter motor for Mazda 3 BK sedan and hatch applications with the 2.0L LF-DE petrol engine, 05/2006–03/2009, automatic or manual transmission. Reference L509-18-400. Listed specification is 12V, 1.4kW, 11 teeth and clockwise rotation. Match the original reference, pinion, mounting flange and electrical terminals before ordering. This listing is restricted to the stated BK 2.0L application; it does not cover BL/BM stop-start variants or other Mazda engines by assumption. One starter motor is included; vehicle wiring, mounting bolts and separate installation hardware are not claimed as included. Send your VIN, build month, transmission details and original-starter photographs for a fitment check.
Reference L509-18-400; match original pinion, flange, terminals and transmission application. Send our team your exact model, build date and a photo of the original part if you need a fitment check.


Confidence starts
before dispatch.
We select our manufacturers for quality, and every part is tested in Australia before it leaves us. It’s a standard we stand behind with local support.
Less waiting.
More driving.
Australian orders under 500g receive free express postage. Orders weighing 500g or more receive free regular postage. Dispatch is from Queensland; availability and delivery estimates are shown at checkout.
Free express postage.
Express delivery is included for Australian orders under 500g.
Free regular postage.
Heavier orders travel by regular post at no delivery charge. See the shipping policy for available options.
Know what to expect.
Check the shipping policy for delivery information, or contact our team before ordering.


at Parts Factory
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For nine years, our family-owned business has helped Australians find the parts they need. From checking an application to after-sales support, you can speak with our local team.
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Practical know-how.
Get to know Parts Factory Australia, then explore our installation tutorials, parts guides and practical tips on YouTube.
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Tutorial availability varies by part and vehicle. Check the exact application and follow the product’s professional installation requirements.
Years of replacement cover.
Professional installation and receipts are required.
Read the full warranty terms ↗
Help when you need it.
Contact our team for fitment, delivery or after-sales support. View our 7-day returns policy and conditions ↗
Good questions.
Clear answers.
A few details now can help you choose the right part first time.
How do I check this starter motor fits?
New aftermarket starter motor for Mazda 3 BK sedan and hatch applications with the 2.0L LF-DE petrol engine, 05/2006–03/2009, automatic or manual transmission. Reference L509-18-400. Listed specification is 12V, 1.4kW, 11 teeth and clockwise rotation. Match the original reference, pinion, mounting flange and electrical terminals before ordering. This listing is restricted to the stated BK 2.0L application; it does not cover BL/BM stop-start variants or other Mazda engines by assumption. One starter motor is included; vehicle wiring, mounting bolts and separate installation hardware are not claimed as included. Send your VIN, build month, transmission details and original-starter photographs for a fitment check. Compare the original part and vehicle details; contact us before ordering if anything differs.
What is the reference and key specification?
Reference: L509-18-400; match original pinion, flange, terminals and transmission application. Listed specification: 12V; 1.4kW; 11 teeth; clockwise rotation; pictured mounting flange and electrical terminals. Listed product: Mazda 3 BK 2.0L Petrol Starter Motor 05/2006–03/2009 – 11 Teeth. New aftermarket starter motor for Mazda 3 BK sedan and hatch applications with the 2.0L LF-DE petrol engine, 05/2006–03/2009, automatic or manual transmission. Reference L509-18-400. Listed specification is 12V, 1.4kW, 11 teeth and clockwise rotation. Match the original reference, pinion, mounting flange and electrical terminals before ordering. This listing is restricted to the stated BK 2.0L application; it does not cover BL/BM stop-start variants or other Mazda engines by assumption. One starter motor is included; vehicle wiring, mounting bolts and separate installation hardware are not claimed as included. Send your VIN, build month, transmission details and original-starter photographs for a fitment check.
Is it shipped from Australia?
Australian orders under 500g receive free express postage. Orders weighing 500g or more receive free regular postage. Dispatch is from Queensland; availability and delivery estimates are shown at checkout.
Is there a guide for my installation?
Our YouTube channel includes installation tutorials and parts guides. Check for your exact part and vehicle; not every application has a guide. The video on this page introduces our business.
What does the replacement warranty require?
Professional installation and retained receipts are required. Read the warranty terms for the cover, exclusions and claim process.




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