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Piston Kit / .020 Over Bore / Polaris Big Boss 250 (1989–1993)
Description:
Piston kit with .020 overbore to restore compression and performance
on Polaris Big Boss 250 ATVs from 1989–1993. Improves power, response,
and durability for rugged riding.
Features:
- Specifically for Polaris Big Boss 250 (1989–1993)
- Includes piston, rings, wrist pin, clips
- Restores compression and top-end reliability
Includes:
- 1 x piston kit (piston, rings, pin, circlips)
Fits Models:
- Polaris Big Boss 250
Model Years:
- 1989-1993
Submodels:
- All Big Boss 250 variants
Engine Options:
- 2-stroke 246cc
Piston Kit / .020 Over Bore / Polaris Big Boss 250 (1989–1993)
piston kit, .020 over, Polaris Big Boss 250, 1989 1993, ATV parts, internal engine, two-stroke, top-end kit
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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