Engines & Maintenance

Sierra Engine Alignment Tool Used to verify engine alignment on all MC-I, R-MR, Alpha One and Alpha One/Gen IIUsed to verify engine alignment on Cobra models Interchanges GLM: 90050 Mercruiser...

Sierra Engine Coupler - Mercruiser For: All GM engines except MR/Alpha/Bravo with "Triangular", 3-bolt coupler Interchangeable with the following: GLM11500 Mercruiser Stern...

Sierra Engine Coupler - Mercruiser - S-18-2173. Replaces: 59826A1, 59826A3For: Ford engines Part Number SRA-S-18-2173

Sierra Engine Coupler - Mercruiser - S-18-2413. Replaces: 69354A1, 69354A2For: 470, 485 (224 cu. in. )S/N 4208730-6218036 (1976-1982) Part Number SRA-S-18-2413

Sierra Engine Mount Bolt Kit For Mercruiser For: R/MR/Alpha I/ Gen II/ Bravo Pack Contents: Washer NSS Spacer

Sierra Emergency Engine Stop Switch Kills ignition when lanyard is pulledFor use with conventional or magneto ignitionsSeals out moistureMakes re-connection easierPanel thickness up to 1/4''Push...

Sierra Ethanol Fuel Treatment and Stabilizer - 1 Gallon / 3.78L Stabilizes E10 gasoline for up to 12 months

Sierra Ethanol Fuel Treatment and Stabilizer - 8 oz art#: S-18-9775 Stabilizes E10 gasoline for up to 12 months

Sierra Ethanol Fuel Treatment and Stabilizer - 946ml Stabilizes E10 gasoline for up to 12 months Prevents fuel system corrosion from water attracted by E10 fuels Cleans fuel system and improves...

Sierra Exhaust Bellows

Sierra Exhaust Bellows - Mercruiser - S-18-2750. All #1 Units, Gen II, TRS, & Bravo I, II, IIIReplaces: 32734, 32734A3, 18654A1 (Includes S-18-710-48-2 Clamp) Part Number SRA-S-18-2750

Sierra Exhaust Bellows Kit - Mercruiser - S-18-2758. Replaces: 875848, 876631AQ200, 250, 270, 275, 280, 280DP, 290, 290DP Part Number SRA-S-18-2758