Seller notes

2 SPI .040 Over Bore Piston KitsPolaris 550 Fan Cooled 1999-2024 - 74mm.Manufactured to OEM Spec by SPIIncludes 2 pistons, ring sets, wrist pins & circlips as picturedSPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder wallsAll SPI pistons, rings, pins & circlips are manufactured to OEM specificationsAll individual components are interchangeable with original partsPiston weight is compatible with original pistonT-Moly series with Tefl...

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