Sierra 18-3931 Piston Ring Set
- The Sierra 18-3931 Piston Ring Set is interchangeable with the following: GLM 23710, Evinrude/Johnson 386279, Mallory 9-54404, Wiseco 2188KD. Each Sierra product meets or exceeds the original equipment part it replaces.
- Sierra Piston Ring Set
- Bore size: 2.188/Std
- Sierra part number: 18-3931
- Interchangeable with the following: GLM 23710, Evinrude/Johnson 386279, Mallory 9-54404, Wiseco 2188KD
GLM Part Number: 23710; Sierra Part Number: 18-3931; OMC Part Number: 386279
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