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Polaris 400 2-Stroke ATV Namura .040 Over Bore Piston Kit (1994–2003)
Description:
Namura .040 over bore piston kit restores compression and performance for Polaris 400 2-Stroke ATVs from 1994–2003. Kit includes piston, rings, wrist pin, and circlips for a complete rebuild, improving reliability and power delivery.
Features:
- Designed for Polaris 400 2-Stroke (1994–2003)
- .040 over bore for restored compression
- Includes piston, rings, wrist pin, and clips
Includes:
1 x Namura .040 over bore piston kit (Polaris 400 2-Stroke)
Fits Models:
Polaris 400 2-Stroke ATVs
Model Years:
1994–2003
Submodels:
Sportsman 400, Scrambler 400, Trail Boss 400
Engine Options:
2-Stroke 400cc
Namura .040 Over Bore Piston Kit for Polaris 400 2-Stroke ATV (1994–2003)
Namura piston kit, Polaris 400, 2-stroke, overbore, 1994 2003, engine rebuild, ATV parts
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.
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