Description
Peak engine performance depends on pistons that can withstand extreme combustion pressures while minimizing friction and heat loss. The WSM +.5mm piston assembly delivers OEM-matching quality with engineering refinements—including a proprietary MOS2 coating on the skirts and hardened ring grooves—that reduce parasitic losses and extend component life. This is a critical upgrade for engines pushed beyond stock parameters or those requiring precision replacement.
Each assembly arrives complete and ready to install, with one unit required per cylinder.
- +.5mm oversize bore
- MOS2-coated skirts
- Heat-dissipating design
- Hardened ring grooves
- Improved E-clip design
- Includes piston, rings, pin, clips
- OEM-grade construction
- Reduced friction and heat
- One assembly per cylinder
- Additional rings available separately
- MPN: 010-872-05K
