OMC Cobra 0983902 0986338 2.5L 120hp 3.0L 140hp Engine Coupler 3853962
Fast & Free Shipping on All Orders!
14-Day Return Policy
- THIS IS A SIERRA (18-21751) EQUIVALENT TO OMC 983902 / 0983902
- Fits 2.5L 120hp GM 4cyl & 3.0L 140hp 4cyl GM OMC Cobra Applications 1986-1989 (2-Piece rear main oil seal)
- Also can fit a handful of 1986 V-Models using 2-piece rear main oil seal from that time period. (This measures 3.5" across to the studs on the crankshaft) ... The newer 1-piece oil seal crankshaft are 3" across.
- Yours should look just like this.
Compatible / Equivalent Part Numbers:
- 983902 / 0983902
- 986338 / 0986338
- Sierra 18-21751
- Splines are in very good shape
- If you are unsure if this will work for you, just ask.
- Purchase with confidence!