Description

The Sierra 18-5139 Contact Set is interchangeable with the following: Mercury 336-4318A2, 336-3948A3, 336-4318A3, 336-4318A, 336-3948A2. Each Sierra product meets or exceeds the original equipment part it replaces. Note: (2) 18-5139 = (1) 336-4318A2.
Sierra Contact Set
Meets or exceeds the original equipment quality
Interchangeable with the following: Mercury 336-4318A2, 336-3948A3, 336-4318A3, 336-4318A, 336-3948A2
Fit specific, check part numbers to ensure proper fit