Home Yamaha Big Bear 400 & Kodiak Namura .020 Over Piston Kit (1993-1999)

Yamaha Big Bear 400 & Kodiak Namura .020 Over Piston Kit (1993-1999)

NOW $318.72
Or 4 interest-free payments of $79.68
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 .020 over piston kit for Yamaha Big Bear 400 and Kodiak
ATVs (1993-1999). Precision machined for improved durability and
power, maintaining OEM compression and reliability.

Features:
- Fits Yamaha Big Bear 400 & Kodiak 1993-1999
- .020 overbore for extra displacement
- Includes rings, pin, and clips
- Improves torque, response, and efficiency

Includes:
1 x piston kit with rings, pin, and circlips

Fits Models:
Yamaha Big Bear 400, Yamaha Kodiak 400

Model Years:
1993 - 1999

Submodels:
Big Bear 400, Kodiak 400

Engine Options:
4-stroke, ~399cc, air-cooled

Namura .020 Over Piston Kit for Yamaha Big Bear 400 & Kodiak (1993-1999)

yamaha, Namura, piston kit, 0.020 over, Big Bear 400, Kodiak, ATV, engine 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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