Parts Unlimited Piston Assembly with Rings and Pin Pistons

The Parts Unlimited Piston Assembly with Rings and Pin is a replacement piston kit (also called a piston kit or piston and ring set) for engine rebuilds and cylinder refreshes. A worn piston or ring can cut compression and power and increase oil consumption. A new assembly helps restore smooth, reliable engine performance.

Key Features:

• Cast piston construction closely matches original equipment
• Designed for efficient heat transfer from the combustion chamber to the cylinder walls
• Includes the piston ring(s), wrist pin and circlips, so the assembly is ready to install
• Components are designed to interchange with the original parts
• Sold per cylinder, so a twin-cylinder engine does not need both pistons replaced if only one is worn

Parts Unlimited is a well-known aftermarket brand for powersports maintenance and repair parts. This product line gives riders a practical, cost-effective way to rebuild an engine. Choose the bore size and oversize option that matches your cylinder. We recommend that a qualified mechanic do the engine disassembly, cylinder inspection and measuring before you install new pistons.