Description

Sierra’s 18-3921 Piston Ring Set is designed for use in Mercury marine applications. It is interchangeable with GLM 14240, Mallory 9-54233, Mercury Marine 39-93481A12, and Wiseco 3125KD. Each Sierra product is designed to meet or exceeds the original equipment part it replaces.
Bore Size: 3.125
Interchangeable with GLM 14240, Mallory 9-54233, Mercury Marine 39-93481A12, and Wiseco 3125KD
Includes two piston rings
Each Sierra product meets or exceeds the original equipment part it replaces