Home Polaris 850 Scrambler & Sportsman Namura / .040 Over Bore / Piston

Polaris 850 Scrambler & Sportsman Namura / .040 Over Bore / Piston

NOW $340.00
Or 4 interest-free payments of $85.00
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 .040 over bore piston kit designed to increase displacement and optimize performance for Polaris 850 Scrambler and Sportsman models. Precision machined for reliable fit, improved top-end power, and durable operation.

Features:
- Precisely machined for Polaris 850 engines
- 0.040 overbore for increased displacement
- Compatible with OEM rings and gaskets
- Enhances performance and throttle response

Includes:
- 1 x Namura .040 over bore piston

Fits Models:
- Polaris 850 Scrambler
- Polaris Sportsman 850

Model Years:
- (omit if not known)

Submodels:
- Scrambler 850
- Sportsman 850

Engine Options:
- 850cc 4-stroke engines

Namura .040 Over Bore / Piston for Polaris 850 Scrambler & Sportsman

Namura, piston, Polaris 850, Scrambler, Sportsman, overbore, 0.040, performance, engine 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

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.


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