Yamaha Big Bear 400 & Kodiak Namura .020 Over Piston Kit (1993-1999)
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
Got a question about this product? Need to check fitment for your vehicle? Fill in the form below and we'll get back to you within 24 hours.
Pay in 4 interest-free payments