Description
SIERRA Contact Set – 18-5139
Breaker-point contact set for Mercury and Mariner outboards using the 336-4318A2 contact assembly.
- Replacement contact set for Mercury/Mariner conventional ignition
- Two Sierra 18-5139 contact sets replace one Mercury 336-4318A2 assembly
- Also replaces Mercury 336-3948A2/A3 and 336-4318A3/A4
- Used on select 4, 4.5, 7.5, 9.8 and 20 hp Mercury outboards with conventional ignition
- Verify engine serial/model and OEM reference before installation
Specifications
- Manufacturer: Sierra
- Manufacturer Part Number: 18-5139
- Application: Mercury/Mariner outboards
- Primary OEM Reference: 336-4318A2
- Quantity Note: 2 x 18-5139 replace 1 x 336-4318A2
- UPC: 030999318367
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