Home Polaris 570 Sportsman RZR Ranger Namura / 100mm / .040 Over Bore Top End

Polaris 570 Sportsman RZR Ranger Namura / 100mm / .040 Over Bore Top End

NOW $618.00
Or 4 interest-free payments of $154.50
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 100mm overbore top end kit designed to restore compression and improve power for Polaris 570 engines across listed models. Suitable for maintenance and performance upgrades.

Features:
- 100mm overbore for Polaris 570 engines
- Includes piston, rings, pin, clips and gaskets
- Compatible with Sportsman 570, RZR 570, Ranger variants

Includes:
- 1 x Namura 100mm bore top end kit (piston, rings, pin, clips)
- Gasket set

Fits Models:
Polaris 570 (Sportsman, RZR, Ranger)

Submodels:
Sportsman 570, RZR 570, Ranger 500/570

Engine Options:
570cc

Namura 100mm .040 Over Bore Top End for Polaris 570 Sportsman RZR Ranger

Namura, Polaris 570, top end, overbore, 100mm, Sportsman 570, RZR 570, Ranger

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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