Engine Parts

Sierra 18-7121 O-Ring Replaces 25-35029 I.D. 3.100" or 78.7mm Width: 0.135" or 3.4mm Interchangeable with: GLM 82350 Mallory 9-76651 Mercruiser Stern Drive 802231 27-882613 25-35029 Mercury Marine 25-35029 OMC Stern...

Sierra 18-9847 Mercruiser Bellows Expander Tool Installs exhaust bellows on Mercruiser MC-I, R-MR, Alpha One, Bravo One and Two and Blackhawk drive units. Replaces: Mercury 91-45497A1 Mallory 9-79811 GLM 90360 Pro...

Sierra 18-9794 Gear Lube Adapter Gear Lube Adapter for use with Sierra quart pumps or lower unit fill tubes. Thread Size: 8-1.25mm Interchangeable with: Mallory 9-81003 Mercury Marine 91-883704Q03  

Sierra 18-9848 Mercuiser Bearing Driver Removes and installs bearings in MC-I, R-MR, Alpha One, Alpha One/Gen Two, all Bravo and outboard gear cases. Compatible Outboard Gear Cases: MC-I, R-MR, Alpha One, Alpha One/Gen II, and all...

Sierra 18-9795 Gear Lube Adapter Sierra replacement gear lube adapter for use with Sierra quart pumps or lower unit fill tubes. For Suzuki lower unit Thread Size: 10-1.25mm  

Sierra 18-8112 Elbow Fitting - 90 Degrees Sierra replacement elbow fitting for Crusader engines. For: Crusader GM Small Block V8 305-350 cu.in. (Models 220, 270, CM305, CM350XL, CM350HT) For: Crusader GM Big Block V8 454 cu.in (Models; 454XL 502XL,...

Sierra 18-9855 Mercruiser Driven Gear Shimming Tool Measures upper DRIVE gear clearance on MC-I, R-MR, Alpha One and Alpha One/Gen. Two drive units. Interchangeable with: GLM 90170 Mercury Marine 91-60523 Application: Mercruiser Stern...

Sierra 18-8048 Bleeder Hose Alcohol resistant I.D.: .090" or 2.3mm O.D.: .220" or 5.6mm Interchangeable with: Mercury Marine 32-99130122 32-892024122 **SOLD BY THE FOOT Minimum Length 3ft Maximum Length 50ft

Mercruiser Drive Gear Shimming Tool by Sierra Measures upper DRIVEN gear clearance on MC-I, R-MR, Alpha One, Alpha One/Gen. Two drive units. Replaces: Mercury - 91-60526T GLM - 90180 Pro Marine - 90180  

Sierra 18-9807 Mercruiser Bravo Shift Cable Adjustment Tool Attaches Over The Shift Cable, and used for proper Bravo Drive unit shift cable adjustment at the shift plate. Interchangeable with: Mercruiser Stern Drive 91-12427T Mercury...

Sierra 18-9809 Bearing Carrier Retainer Tool Loosens and tightens bearing carrier retainer on Bravo Two drives. Replaces Mercury part number 91-17257. Interchangeable with: Mallory 9-79810 Mercury Marine 91-17257

Sierra 18-9099 MerCruiser Trailering Clips Replaces 817019Q2 These Sierra trailering clips are designed for use with MerCruiser drives. I.D.: 3/4" Length: 11-1/8" Application Info: Fits Alpha One Gen I drives from 1983-1991 with serial numbers...

Sierra 18-9861 MerCruiser Hinge Pin Tool Replaces 78310 This Sierra hinge pin tool is designed to remove and install hinge pins from all MerCruiser drive units. Interchangeable...

Sierra 18-7100-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for use on most engines. I.D.: 0.245" or 6.2mm Width: 0.155" or 3.9mm Package of 5 Interchangeable with: Chrysler/Force/US...

Sierra 18-9816 Mandrel Removes And Installs Bearings In MC-1,R-MR,Alpha One, Alpha One Gen II, All Bravo And Outboard Gear Cases. Interchangeable with: Mercury Marine 91-30366T1

Sierra 18-9817 Shift Shaft Bushing Tool Removes And Installs The Shift Shaft Bushing In The Gear Case Of MC-I,R-MR, and Alpha One Drive units And Outboards. Sierra replacement engine parts are manufactured to meet or exceed OEM requirements. For use...

Sierra OP22891 Oil Pressure Switch Sierra replacement oil pressure switch. Thread Size: 1/8-27 Terminal Type: 10-32 stud Range: 15 psi Trip Interchangeable with: Stewart Warner 364K-F

Sierra 18-9870 Mercruiser Sleeve Installation Tool Installs The Aluminum Sleeve In The U-Joint Bellows Of All Bravo,Alpha One Gen II,Blackhawk Drive Units And Outboards. Interchangeable with: Mallory 9-79821 Mercury Marine 91-818162

Sierra 18-7165-9 O-Ring (Priced Per Pkg Of 5) Sierra replacement O-ring for Mercury, Mercruiser, Chrysler, Johnson/Evinrude, and OMC engines. I.D.: 0.500" or 12.7mm Width: 0.065" or 1.7mm Package of 5 Interchangeable with: Chrysler/Force/US...

Sierra OP24301 Oil Pressure Sender Sierra replacement oil pressure sender. Thread Size: 1/8-27 Teminal Type: 10-32 stud Range: 100 psi Sender Code "C" Range-1 Gauge: 240 Ohms at 0 PSI Range-1 Gauge: 200 Ohms at 10 PSI Range-1 Gauge: 160 Ohms at...