JDM Mazda 3 Crankshaft & Bearing Rebuild Kit (AP01)
Performance Engine Restoration
Whether you’re dealing with a spun bearing on your Mazdaspeed 3 or building a high-compression N/A monster, the heart of your build is the crankshaft. For JDM enthusiasts, a reliable rotating assembly is the difference between a podium finish and a catastrophic failure. Our Mazda 3 Crankshaft kit is a comprehensive, precision-engineered solution designed to restore factory-spec tolerances or provide a robust foundation for your next performance upgrade.
The AP01 series is renowned in the aftermarket world for providing OE-quality performance at a fraction of the dealership price.
Our JDM Mazda 3 Crankshaft is precision-ground and balanced to ensure smooth rotation and reduced vibration across the entire RPM range. Accompanied by a full set of main and rod bearings, this kit eliminates the guesswork of engine assembly, providing a perfectly matched rotating assembly ready for installation.

Whether you are running an MZR, DISI Turbo, or SkyActiv platform, this kit is built to handle the stresses of spirited driving and high-boost applications.
What You Get Here:
- Precision Balancing: Each Mazda 3 Crankshaft is meticulously balanced to minimize harmonic vibrations, protecting your engine at high RPMs.
- High-Strength Construction: Crafted from premium materials (typically forged steel or high-grade cast iron) to resist fatigue and cracking under load.
- Comprehensive Bearing Kit: Includes a full set of standard-size main bearings, connecting rod (big end) bearings, and thrust washers for a complete bottom-end refresh.
- JDM Spec Compatibility: Designed for a wide range of Mazda 3 engines, including the popular 2.0L, 2.3L Turbo (MPS), and 2.5L MZR/SkyActiv variants.
- AP01 Reliability: A trusted aftermarket part number known for consistent quality and direct-fit installation with no modifications required.
Fitment:
This Mazda 3 Crankshaft kit is compatible with several major Mazda engine platforms. Please verify your engine code before purchase:
Mazda 3 2.0L MZR (LF/L-Series): 2004–2013
Mazda 3 2.3L DISI Turbo (L3-VDT / Mazdaspeed 3 / MPS): 2006–2013
Mazda 3 2.5L MZR/SkyActiv (L5/PY-Series): 2010–Present
Mazda 3 2.2L Diesel (R2AA/SkyActiv-D): (Please confirm specific AP01 variant as diesel shafts vary).
- Mazda CX -7 CRT D DIESEL (Engine Code: MZR-CD)
*For optimal results, professional installation is highly recommended.













Bardo E. –
Product fits good. No machining needed.
Gaby Nelson –
been looking for this specific model everywhere. Couldn’t find it even on eBay. Thanks guys!
Lovett Antoine M. –
Great gear as always. Shipping time could be better through.
Jeffrey K.L. –
Can’t go wrong with this one. Although the shipping took longer than I expected
Oliver P.Y. –
This is an amazing find. It’s actually the original manufacturer spec crankshaft. I didn’t think that the quality would be that good for the price. Thanks, JCDCAuto. You are my new plug for rebuilds. Highly recommended.
Ashton Berringher L. –
Great quality crankshaft and fast shipping. Highly recommended 👍
