Description

Sierra’s 18-4019 Piston Ring Set is designed for use in Mercury marine applications. It is interchangeable with Mallory 9-54208 and Mercury Marine 39-19721A6. Each Sierra product meets or exceeds the original equipment part it replaces.
Bore Size: 2.875
Interchangeable with Mallory 9-54208 and Mercury Marine 39-19721A6
Includes two piston rings
Each Sierra product meets or exceeds the original equipment part it replaces