Parts Unlimited Piston Ring Set Bore Standard

Parts Unlimited piston ring sets are OEM-type replacement rings for rebuilding or refreshing a powersports engine. The rings seal the combustion chamber, control oil on the cylinder wall, and transfer heat from the piston to the cylinder. Fresh piston rings help restore compression, reduce oil consumption, and bring back smooth, consistent engine performance.

Key Features:

• OEM-type replacement design for dependable sealing and fit
• Standard bore sizing for engines that have not been bored oversize
• Multiple bore diameters available, so you can match the ring set to your cylinder
• Suited to engine rebuilds, top-end refreshes, and piston replacement
• Backed by Parts Unlimited, a long-established supplier of powersports replacement parts

Some ring designs in this line are made to match a specific replacement piston and may not match the original OEM ring profile. Select the child item that matches your cylinder bore and piston application. Piston rings are also called ring sets or piston ring kits.