Wiseco Forged Series Piston Kit with Gaskets - Polaris Trail Blazer/Trail Boss/Scrambler 250 (1985-2005) - 73.00mm Bore (+1.00mm Oversize) - 2-Stroke
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Wiseco Forged Series Piston Kit with Gaskets - Polaris 250 Platform - +1.00mm Oversize
Premium Wiseco Forged Series piston kit for Polaris 250cc 2-stroke ATVs. +1.00mm OVERSIZE (73.00mm) for worn cylinders!
⚠️ Oversize Piston - Cylinder Boring Required
This piston is +1.00mm oversize. Cylinder boring to 73.00mm is required for proper fit.
Kit Includes
- Forged Series Piston
- Ring Set
- Wrist Pin
- Circlips
- Wrist Pin Bearing
- Complete Gasket Kit
Key Features
- Forged Series - 4032 aluminum alloy
- 2-STROKE Utility/Sport ATV
- 21 YEARS of fitment (1985-2005)!
- Fits Trail Blazer, Trail Boss, AND Scrambler models!
Piston Specifications
- Bore Size: 73.00 mm (+1.00mm Oversize)
- Piston Diameter: 72.92 mm
- Stroke Length: 60.00 mm
- Material: 4032 Aluminum Alloy
- Skirt Coating: Non-Coated
Engine Specifications
- Displacement: 244cc
- Engine Type: 2-Stroke
- Weight: 0.95 lbs
Fitment
- Polaris Trail Blazer 250: 1990-2005
- Polaris Trail Blazer 250 ES: 1996-1998
- Polaris Trail Blazer 250 Freedom: 2002
- Polaris Trail Boss 250: 1985, 1991-1999
- Polaris Trail Boss 250 2x4: 1988-1993
- Polaris Trail Boss 250 4x4: 1987-1993
- Polaris Trail Boss 250 R: 1987-1989
- Polaris Trail Boss 250 RES 4x2: 1989
- Polaris Trail Boss 250 ES: 1988
- Polaris Trail Boss 250R/ES: 1986-1988
- Polaris Scrambler 250: 1986
- Polaris Scrambler 250R ES: 1985
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
