Engines and Components› Pistons and Piston Rings
CP Pistons
CP Pistons 1996-2009 Honda 400EX 11.0:1 87mm STD Bore x 70mm Stroke
SKU: C00A M2001
Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
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Specifications
| Brand | CP Pistons |
| Part Number | C00A M2001 |
Videos
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Observing the Timeless Classic 400EX: The Legendary ATV That Ignited a Sport Quad Revolution
Why the Honda 400ex is Still Relevant | Iconic ATV Analysis | Better Choice than 450cc Race Quad?
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Honda 400EX Affordable Trail Quad Project Test
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This $900 Honda 400EX Has Been Sitting for YEARS... Will it Start?
Honda TRX 400ex Cold Start ATV Review walk around
2007 Honda 400EX Build Break Down | ATV Walk Around
How To Replace the Clutch on a Honda TRX400EX
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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