Wiseco Pistons 471M06650 Forged Piston Kit Oversize - 66.50mm 0.50mm

The Wiseco 471M06650 is a 0.50mm (0.020") oversize piston kit designed for Yamaha 175cc 2-stroke engines, including CT2/CT3, DT175, MX175, and YT175 Tri-Moto models from 1972-1984. Wiseco pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.

Key Features:

• Constructed from 4032 aluminum alloy for extended life and sustained power
• Diamond turned finish from CNC computer controlled turning centers guarantees a perfect finish with no size variation
• Complete kit includes wrist pin, rings, and circlips
• All pistons are forged in-house with all forge tooling produced in the USA
• Forgings are tougher and more durable than cast pistons, standing up to high performance motorsport abuse

Wiseco's wide range of oversize pistons increase the life of cast iron lined cylinders. This 66.50mm bore size provides 0.50mm oversize for cylinder rebuilds requiring overboring. Perfect for restoring compression and performance in vintage Yamaha 2-stroke dirt bikes and ATVs.

Important Note: Only Wiseco replacement ring sets can be used on Wiseco pistons.