MerCruiser 84-98422A10 4cyl 120hp 140hp 2.5L 3.0L Engine Wire Wiring Harness Windshield Parts so will also likely fit

so will also likely fit OMC 302 from this time period

This Gauge Completes the SystemCheck engine Monitor

It's probably in your best interest to just see what number is physically stamped on your steering shaft & go from there

but the housings are the same no matter what drive/engine you have from that period of 1970-1982 (I-4

MerCruiser 84-98422A10 4cyl 120hp 140hp 2.5L 3.0L Engine Wire Wiring Harness Windshield Parts so will also likely fitItem Details MerCruiser 84 98422A10 External Engine Wiring Harness (84 98422A5 Stamped) Stamped 84 98422A5 (Typically) This would have gone on engines that USED THE ROCKER COVER FOR shift components (NOT mounted to the side intake exhaust manifold) and still had conventional ignition MerCruiser 2. 5L 120hp 4cyl: 1987 1989 (Typically) MerCruiser 3. 0L 140hp 4cyl: 1987 1989 (Typically) Yours should have the same part number or one of the part numbers