Sierra Outboard Tachometer Harness

Sierra Outboard Tachometer Harness

This Sierra tachometer harness is listed for compatible Mercury and Mariner outboards with a five-wire plug connection. Match the supplied harness to your engine, controls and tachometer before ordering.

Product Details

• Brand: Sierra
• Product: Outboard tachometer harness
• Listed application: Mercury and Mariner outboards; exact model compatibility requires confirmation
• Listed connector: Five-wire plug
• Listed wiring: BIA color-coded harness

Fitment & Ordering

Verify the exact harness part number, connector shape, pin arrangement and cable length against your engine model, year and control configuration. Confirm that your tachometer accepts the engine's signal and that the wiring connections match the manufacturers' diagrams. Do not assume this harness fits every Mercury or Mariner outboard or eliminates all installation wiring. Follow the engine, harness and gauge manufacturers' installation instructions. Contact C and O Marine Parts with your engine and tachometer details for help confirming compatibility and included components.