Category: ATV (9E) Maker: POLARIS Model: Trail Boss 250R ES 4x4 Year: 1988 Piston KitPistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc. Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. Pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversizes. Take advantage of the additional oversizes to extend the lifespan of plated cylinders. All Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips. Wiseco Piston Kit includes: Piston, rings, pins, gaskets, circlips and needle bearing (when applicable) for one cylinder. Refer to the chart to find your model.Specifications Compatible Brand: Fits Polaris Displacement: N/A Bore - Standard: 72 mm Bore - Oversize: Standard Bore - Actual: 72 mm Stroke: 60 mm Notes: N/A Number: 064672
