Wiseco 633M07025 Forged Piston Kit Oversize Bore - 0.50mm 70.25mm SL750

The Wiseco 633M07025 is a 0.50mm oversize forged piston kit delivering a finished bore diameter of 70.25mm, designed for the Polaris SL 750 / SLT 750 personal watercraft platform. Each piston is forged from high-silicon, low-expansion aluminum alloy, providing superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives.

Key Features:

• Forged high-silicon aluminum construction — greater strength and lower thermal expansion at operating temperatures
• 0.50mm oversize bore — finished bore diameter of 70.25mm; cylinder resleeving or replating required for proper fitment
• Diamond-turned CNC finish — precision machined on computer-controlled turning centers for consistent sizing and a perfect surface finish
• Universal cylinder bore compatibility — suitable for use in cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
• Ring set included — kit includes Wiseco 2766CD ring set matched to this piston; Wiseco rings are application-specific and not interchangeable with other ring types
• Complete kit contents — includes forged piston, matched rings, wrist pin, and circlips

Wiseco pistons are manufactured in a state-of-the-art CNC facility and are trusted by both high-performance racers and recreational powersports enthusiasts. The 633M07025 is sold individually; a quantity of two is required for a complete dual-cylinder engine rebuild.