Home Kawasaki KFX400 Namura 91mm .040 Over Bore Piston Kit (2003–2006)

Kawasaki KFX400 Namura 91mm .040 Over Bore Piston Kit (2003–2006)

NOW $273.00
Or 4 interest-free payments of $68.25
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Description:
Namura 91mm overbore piston kit increases displacement for KFX400 (2003-2006),
improves compression and overall performance. Includes piston, rings, pin, and clips
for complete rebuild and durable operation.

Features:
- Designed for Kawasaki KFX400 2003-2006
- 91mm overbore for increased displacement
- Includes rings, wrist pin, and circlips
- Durable forged piston with OEM-spec fit

Includes:
1 x Namura 91mm .040 over piston kit with rings, pin, and clips

Fits Models:
Kawasaki KFX400

Model Years:
2003-2006

Submodels:
Standard, Special Edition

Engine Options:
4-stroke, single-cylinder, ~398cc

CF Namura 91mm .040 Over Bore Piston Kit for Kawasaki KFX400 (2003–2006)

Namura, piston kit, Kawasaki KFX400, 91mm, overbore, 2003-2006, 398cc, performance

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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