Home Polaris Ranger 150 & ACE 150 Namura / 57.9mm / Over Bore Top End Repair

Polaris Ranger 150 & ACE 150 Namura / 57.9mm / Over Bore Top End Repair

NOW $243.22
Or 4 interest-free payments of $60.80
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 overbore top end kit restores compression with a 57.9mm bore, boosting power and reliability for Polaris Ranger 150 and ACE 150 engines. Includes essential gaskets and hardware for a complete rebuild.

Features:
- Designed for Polaris Ranger 150 and ACE 150
- 57.9mm bore size
- Includes piston, rings, wrist pin, circlips, and gaskets
- Improves performance and durability

Includes:
1 x Namura 57.9mm overbore piston kit with piston, rings, wrist pin, circlips, and gaskets

Fits Models:
Polaris Ranger 150
Polaris ACE 150

Model Years:
(omit if unavailable)

Submodels:
Ranger 150
ACE 150

Engine Options:
150cc single-cylinder

Namura 57.9mm Over Bore Top End Repair Kit for Polaris Ranger 150

Namura, overbore, 57.9mm, Polaris Ranger 150, ACE 150, piston kit, top end repair, engine

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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