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Polaris Sportsman 450 400 Ranger Namura 87.9mm Standard Bore Piston Rings
Description:
Premium Namura standard bore piston ring set designed for Polaris Sportsman 450, 400, and Ranger models. Restores compression, seals oil control, and maintains optimal engine performance with proper bore clearance and durability.
Features:
- Specifically engineered for 87.9mm bore
- Improves compression and oil control
- Compatible with Sportsman 450/400 and Ranger variants
Includes:
- 1 x Namura 87.9mm Standard Bore Piston Ring Set
Fits Models:
- Polaris Sportsman
Model Years:
- (omit if not available)
Submodels:
- Sportsman 450, Sportsman 400, Ranger
Engine Options:
- 450cc, 400cc
Namura 87.9mm Piston Ring Set for Polaris Sportsman 450/400/Ranger
Namura piston rings, 87.9mm, Polaris, Sportsman 450, Sportsman 400, Ranger, engine rebuild, standard bore, OEM replacement, 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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