Home Polaris 300 Xplorer Xpress Big Boss Namura 74.5mm Standard Bore Piston

Polaris 300 Xplorer Xpress Big Boss Namura 74.5mm Standard Bore Piston

NOW $339.62
Or 4 interest-free payments of $84.90
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 74.5mm standard bore piston designed for Polaris 300cc ATVs. Provides reliable replacement with consistent size for proper compression, durability, and improved engine performance on Xplorer, Xpress, and Big Boss variants.

Features:
- Designed for Polaris 300 Xplorer Xpress Big Boss
- 74.5mm standard bore for replacement
- Suitable for Xplorer, Xpress, and Big Boss submodels
- Improves compression, efficiency, and reliability

Includes:
1 x Namura 74.5mm Standard Bore Piston

Fits Models:
Polaris 300 Xplorer Xpress Big Boss

Model Years:
(omit)

Submodels:
Xplorer, Xpress, Big Boss

Engine Options:
300cc

Namura 74.5mm Standard Bore Piston for Polaris 300 Xplorer Xpress Big Boss

Namura piston, Polaris 300, standard bore, 74.5mm, ATV, engine rebuild, Xplorer, Xpress, Big Boss

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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