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Polaris Sportsman 850 Namura .020 Over Bore Top End Kit / 87.5mm /
Description:
Namura’s .020 overbore top end kit provides increased displacement for the Polaris Sportsman 850, enhancing power and throttle response while maintaining reliability. Ideal for pressure-tested engines needing a performance upgrade with proper fitment for 87.5mm bore.
Features:
- Specifically compatible with Polaris Sportsman 850
- 87.5mm overbore top end kit
- Designed for improved power and durability
Includes:
1 x Namura .020 Over Bore Top End Kit - 87.5mm
Fits Models:
Polaris Sportsman 850
Model Years:
(omit if not certain)
Submodels:
All Polaris Sportsman 850 models
Engine Options:
850cc HO / EFI
Namura .020 Over Bore Top End Kit / 87.5mm / for Polaris Sportsman 850
Namura, overbore kit, top end, 87.5mm, Polaris Sportsman 850, engine upgrade, 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.
Product Enquiry
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