Home Polaris ACE 150 58.4mm Namura .040 Over Bore Piston Kit (2017–2021)

Polaris ACE 150 58.4mm Namura .040 Over Bore Piston Kit (2017–2021)

NOW $148.00
Or 4 interest-free payments of $37.00
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Description:
Upgrade kit to restore compression and performance for Polaris ACE 150 engines. Precision-fit 58.4mm bore with .040 over sizing enhances power delivery, torque, and overall reliability for daily use or upgrades.

Features:
- Specifically designed for Polaris ACE 150 (2017-2021)
- 58.4mm bore with .040 oversize
- Restores compression, boosts power and throttle response
- Includes matched piston kit for reliable operation

Includes:
1 x Namura 58.4mm .040 Over Bore Piston Kit

Fits Models:
Polaris ACE 150

Model Years:
2017-2021

Submodels:
All Polaris ACE 150 variants

Engine Options:
149cc single-cylinder engine

58.4mm Namura .040 Over Bore Piston Kit for Polaris ACE 150 (2017-2021)

Namura piston, Polaris ACE 150, 58.4mm piston, oversize piston, engine kit, performance upgrade, 149cc, motorcycle 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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