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Honda TRX400EX & TRX400X Sportrax Over Bore Namura Piston Kit
Description:
Over-bore Namura kit increases displacement for more power and torque.
Designed for TRX400EX/TRX400X with reliable performance gains.
Features:
- Specifically for Honda TRX400EX and TRX400X Sportrax
- Over-bore design for improved power and torque
- Includes rings, clips, wrist pin, gasket set for install
Includes:
- 1 x Namura Over-Bore Piston Kit
- 1 x Piston Rings
- 1 x Circlips
- 1 x Wrist Pin
- 1 x Gasket Set
Fits Models:
- Honda TRX400EX
- Honda TRX400X Sportrax
Engine Options:
- 400cc 4-stroke
Over Bore Namura Piston Kit for Honda TRX400EX & TRX400X Sportrax
Namura piston kit, over-bore, Honda TRX400EX, TRX400X, Sportrax, 400cc, engine
Shipping Information
Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.
The Kren Bits journey:
- Order received — Day 0
- With fulfilment — Day 1–2
- Heading to courier — Day 2–4
- Shipped — Day 3–7
- Almost there — Day 5–10
- Delivered — Day 5–14
Where your part ships from:
Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.
We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.
For more details, visit our Track Your Order page.
Product Enquiry
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