Moose Racing Piston Kit, 53.95 mm for Yamaha YZ125 (MSE24570B)

The Moose Offroad MSE24570B Piston Kit is designed for Yamaha YZ125 applications requiring a dependable replacement piston assembly. This complete kit includes the piston, piston ring set, wrist pin, and circlips, providing the essential components needed for a proper installation and helping simplify engine service. The 53.95 mm piston size supports accurate fitment for compatible YZ125 engines.
The piston is manufactured from gravity-cast aluminum alloy with 18% silicon, helping improve resistance to wear while reducing thermal distortion during engine operation. Its coated skirt is designed to support easier break-in, minimize friction-related wear, and promote effective lubrication between the piston and cylinder wall. These features help provide consistent performance and durability in demanding off-road riding conditions.
The included piston rings feature either a nitride or chrome-plated finish, depending on the application, for enhanced surface hardness and wear resistance. The nitride-coated wrist pin provides a hardened bearing surface designed to withstand repeated loading and friction. Circlips are included to help secure the wrist pin during assembly. Verify engine year, bore specification, and manufacturer fitment requirements before installation to ensure compatibility with your Yamaha YZ125.
Feature: Complete piston kit includes piston, ring set, wrist pin, and circlips
Feature: 53.95 mm piston size for compatible Yamaha YZ125 applications
Feature: Gravity-cast aluminum alloy construction with 18% silicon
Feature: Coated piston skirt supports break-in, lubrication, and wear reduction
Feature: Nitride or chrome-plated piston rings for improved wear resistance
Feature: Nitride-coated wrist pin with a hardened bearing surface

Features:

• Complete piston kit includes piston, ring set, wrist pin, and circlips

• 53.95 mm piston size for compatible Yamaha YZ125 applications

• Gravity-cast aluminum alloy construction with 18% silicon

• Coated piston skirt supports break-in, lubrication, and wear reduction

• Nitride or chrome-plated piston rings for improved wear resistance

• Nitride-coated wrist pin with a hardened bearing surface

Ships from Parts Unlimited.