Description

Sierra’s 18-4018 Piston Kit is designed for use in Mercury marine applications. It is interchangeable with Mallory 9-53210 and Mercury Marine 783-9613A3, 783-9613T3. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Mercury marine applications
Interchangeable with Mallory 9-53210 and Mercury Marine 783-9613A3, 783-9613T3
Bore Size: 2.985
Each Sierra product meets or exceeds the original equipment part it replaces