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Marine Warehouse
Sierra 18-1977-1 Mercruiser Thermostat Housing Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-6 & V-8 (305 & 350 cid) engines & Hi-Perf 454, 502 & 540 cid ... More Details
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This item has been discontinued by the manufacturer and is no longer available. Sierra 18-1978 Elbow Sierra elbow for use on V-8 inboard applications only. Use With: 18-1950-1: Manifold 18-1951-1: Man... More Details
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Thermostat Service Kit for 18-1989 by SierraWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2009 Mercury Oil Seal Sierra replacement oil seal for Mercury Marine engine and Mercruiser Stern Drives. O.D.: 0.750" Shaft Size: 0.375" Width: 0.250" Interchangeable with: GLM 85050 Mallory... More Details
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Sierra 18-2044 Oil Seal I.D.: 12mm O.D.: 24mm Width: 7mm Interchangeable with: Volvo Penta 833996 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2045 Oil Seal Sierra high-quality engine parts are designed to meet OEM specifications. I.D.: 16 mm O.D.: 28 mm Width: 7 mm Interchangeable with: Volvo Penta 827247 WARNING: Cancer and Repro... More Details
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Sierra 18-2046 Oil Seal Sierra replacement oil seal for Volvo Penta engines. I.D.: 35 mm O.D.: 55 mm Width: 10 mm Interchangeable with: Volvo Penta 946242 WARNING: Cancer and Reproductive Harm - P65Wa... More Details
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Sierra 18-2047 Oil Seal Sierra engine parts are designed to meet OEM specifications. I.D.: 35 mm O.D.: 62 mm Width: 7 mm Interchangeable with: GLM 87020 Volvo Penta 958860 WARNING: Cancer and Reproduc... More Details
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Sierra 18-2048 Mercury Oil Seal Sierra high-quality engine parts are designed to meet OEM specifications. For Mercury Marine engines. O.D.: 0.566" Shaft Size: 0.400" Width: 0.094" Interchangeable with... More Details
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Sierra 18-2049 Oil Seal O.D.: 2.005" Shaft Size: 1.250" Width: 0.388" Interchangeable with: GLM 85020 Mallory 9-76111 Mercruiser Stern Drive 26-32511 WARNING: Cancer and Reproductive Harm - P65Warning... More Details
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OIL SEAL - Special Order Item est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2056 Oil Seal Sierra 18-2056 Oil Seal for use on Chrysler/Force/US Marine, MerCruiser Stern Drives, Mercury Marine and Sears. Features: O.D.: 1.381" Shaft Size: 0.875" Width: 0.250" Intercha... More Details
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Oil Seal - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2087 Oil Seal NLA - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2112 Power Trim Hose for Mercruiser Stern Drives Sierra high-quality engine parts are designed to meet OEM specifications and are backed by Sierra's unmatched manufacturer's warranty. Fits M... More Details
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Sierra 18-2129 Shift Spool Assembly WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Shift Slide Screw (Priced Per Pkg of 5) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Prop shaft for Mercury - Mariner. Replaces part number 44-93003.WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2199 Short Yoke Spacer Sierra replacement short yoke spacer for Volvo Penta engines. Interchangeable with: GLM 23030 Volvo Penta 832675 WARNING: Cancer and Reproductive Harm - P65Warnings.ca... More Details
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Sierra 18-2241 Drive Shaft WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2316 Shift Shaft Washer Sierra high-quality engine parts are designed to meet OEM specifications. For Gen II (1998 & up), (0L100040 & up). For Mercruiser Stern Drives and Mercury Marine engi... More Details
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Washer (Priced Per Pkg of 5) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2334 Shaft Key Sierra Marine engine parts are manufactured to meet or exceed OEM requirements. Shaft Dimensions: 2-1/8" x 1/4" or 64 mm x 19.1 mm WARNING: Cancer and Reproductive Harm - P65W... More Details
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Sierra Pinion Nut Washer, Priced Per Pkg of 2. Special Order est. 10 Days. For use on Mercruiser I/O Engines, MR/Alpha/Gen II. Replaces: 12-92721. WARNING: Cancer and Reproductive Harm - P65Warnin... More Details
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Sierra 18-2345-9 Drive Shaft Bearing E-Ring (Pkg Of 2) Sierra Drive Shaft Bearing E-Ring for Alpha One Gen II drives. Sierra manufactures aftermarket engine and drive parts that meet or exceed OEM req... More Details
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Sierra 18-2348-9 Clutch Cross Pin Spring (Priced Per Pkg Of 2) - MW
Marine Warehouse
Clutch Cross Pin Spring (Priced Per Pkg of 2) - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2349 Shift Shaft Sleeve Sierra replacement shift shaft sleeve for Mercruiser Stern Drives. For: Ratios: 1:47, 1:62, 1:81 & 1:94 For: Gen II (1998 & Up), (0L100040 & Up) Thickness: 1/4" Inter... More Details
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Sierra 18-2361 Bolt Sierra 3/8-16 x 1 " Lower unit mounting screw. Interchangeable with: GLM 22430 Mercruiser Stern Drive 10-30206 10-805763 10-853163 Mercury Marine 10-30206 WARNING: Cancer and Rep... More Details
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Screw (Priced Per Pkg of 2) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Nut - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2369 Lower Gearcase Seal This item has been discontinued by the manufacturer and is no longer available. Sierra replacement lower gearcase seal for Mercruiser Alpha/Gen II 1991-95. Interchan... More Details
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Sierra 18-2371 Drain Screw Sierra replacement drain screw for Yamaha Outboards. Thread: M8-1.25 Use with: 18-4698 Drain Fill Washer Interchangeable with: Mallory 9-72653 Yamaha Outboard 90340-08M04-00... More Details
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Drain Screw (Priced Per Pkg of 50) - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2374 Magnetic Drain Screw Sierra Magnetic Drain Screw for use on Yamaha Outboards. Thread: M8-1.25 Use With: 18-4698: Drain Fill Washer 18-46981-9: Drain Fill Washer (Priced per package of 5... More Details
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Sierra 18-2393 Mercruiser Trim Cylinder Pivot Pin Sierra high-quality engine parts are designed to meet OEM specifications. Use with 18-2702-1 bushing. For trim cylinder rear R/MR/Alpha engines Interc... More Details
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Sierra 18-2394 Trim Cylinder Pivot Pin for Mercruiser Stern Drives Sierra replacement Mercruiser trim cylinder pivot pin. For: Trim cylinder front R/MR/Alpha Size: 3/8" - 24 thread Note: Use with 18-2... More Details
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Sierra 18-2395 Trim Cylinder Pivot Pin Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2396 Trim Cylinder Pivot Pin Sierra Trim Cylinder Pivot Pin for Mercruiser Bravo Drives. For: Rear Bravo Overall Length: 9-1/4" Shaft Length: 7-1/2" Interchangeable with: GLM 21480 Mercruise... More Details
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Lower Gear Housing - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2504 Mercury Block Cover Gasket Sierra replacement block cover gasket for Mercury Marine engines. Interchangeable with: GLM 32090 Mercury Marine 27-88449 27-74511 27-60310 27-76401 Applicati... More Details
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Sierra Exhaust Plate Gasket Special Order est. 10 Days For use on Mercury/Mariner Outboard Engines Included in Powerhead Gasket Sets 18-4339, 18-4317, 18-4359, Replaces #27-99176-3, 27-99176-4 WARNIN... More Details
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Sierra 18-2512 Mercury Crankcase Gasket Sierra high-quality gasket for crankcase to cyl. block. For 3 cyl. Interchangeable with: GLM 30930 Mercury Marine 27-60286 WARNING: Cancer and Reproductive Harm... More Details
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Sierra 18-2515 Crankcase Gasket Replaces 27-53862 - MW
Marine Warehouse
Sierra 18-2515 Crankcase Gasket Sierra high-quality replacement engine parts. Interchangeable with: GLM 31580 Mercury Marine 27-53862 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Seal Ring - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2529 Volvo Penta Seal Ring Sierra high quality engine parts are designed to meet OEM specifications. Interchangeable with: Volvo Penta 831892 Application: AQ120B 1977-1980 110 HP AQ125A 1983... More Details
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Gearcase Cover Seal - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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RUBBER SEAL - Special Order ItemWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2537 Exhaust Leg Seal Sierra replacement exhaust leg seal for Johnson/Evinrude Outboards. Interchangeable with: GLM 86210 Johnson/Evinrude Outboard 324937 WARNING: Cancer and Reproductive ... More Details
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Sierra 18-2539 Johnson/Evinrude Rubber Seal Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 86230 Johnson/Evinrude Outboard 328753 Mallory 9-78009 S... More Details
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Sierra 18-2539-9 Rubber Seal (Priced Per Pkg Of 5) - MW
Marine Warehouse
Sierra 18-2539-9 Rubber Seal (Priced Per Pkg Of 5) Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 86230 Johnson/Evinrude Outboard 328753 Mallory 9-... More Details
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Water Jacket Gasket for Johnson Evinrude - Special Order ItemWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2551 Thermostat Cover Gasket WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2555 Mercruiser Thermostat Cover Gasket Fits MCM 3.7L engines Interchangeable with: GLM 32100 Mercruiser Stern Drive 27-896561 27-89656 WARNING: Cancer and Reproductive Harm - P65Warnings.ca... More Details
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Sierra 18-2555-9 Thermostat Cover Gasket (Priced Per Pkg Of 2) - MW
Marine Warehouse
Thermostat Cover Gasket (Priced Per Pkg of 2) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2559-9 Impeller Gasket (Priced Per Pkg Of 2) Sierra high-quality engine parts are designed to meet OEM specifications. For Mercury 6/8/9.9/15 Interchangeable with: Chrysler/Force/US Marine 2... More Details
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Sierra 18-2560-9 Impeller Gasket (Priced Per Pkg Of 2) Supersedes Sierra 18-2560 Impeller Gasket Special Order est. 10 Days For use on Mercury/Mariner Outboard Engines, 18hp, 20hp, 25hp Replaces: 12-... More Details
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Carb Flange Gasket - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2568 Strainer Cover Screw Gasket Interchangeable with: GLM 31260 Mercury Marine 27-25848 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2569 Mercury Filter Cover Gasket Sierra high-quality replacement engine parts are designed to meet OEM specifications. Interchangeable with: GLM 31270 Mercury Marine 27-25849 WARNING: Cancer... More Details
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Sierra 18-2571 Carburetor Flange Gasket Sierra high-quality engine parts are designed to meet OEM specificaitons. Interchangeable with: GLM 31300 Mercury Marine 27-31402 WARNING: Cancer and Reproducti... More Details
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Carb Flange Gasket (Priced Per Pkg of 2) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2572 Carburetor Flange Gasket Interchangeable with: GLM 31650 Mercury Marine 27-63309 27-22023 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Seal Kit - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Bolt - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2607 Yamaha Outboard Bolt Sierra replacement bolt for Yamaha Outboards. Thread Size: M8-1.0x40mm 18-8 S/S Interchangeable with: Mercury Marine 10-82457M 10-827043M Yamaha Outboard 91101-0604... More Details
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Gasket - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Baffle Plate Gasket - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2623 Lower Unit Seal Kit Replaces 5006373 - MW
Marine Warehouse
Sierra 18-2623 Johnson/Evinrude V4 Lower Unit Seal Kit Replaces 5006373 Special Order Item Use For Engine Models: V-4 1978-84 85 1991-95 88 1985-Up 90 1985-Up 100 (Comm) 1984-90 100 (Comm) 1991-95 100... More Details
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Sierra 18-26310-2 Chev V8 Electronic Distributor Sierra replacement electronic distributor for GM 327Q, 350Q engines with electronic ignition. Rotation: Conventional Designed for 12 volt negative grou... More Details
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Sierra 18-2672 Lower Unit Seal Kit Sierra replacement lower unit seal kit for OMC Stern Drives. Contains: (2) 18-0166 Grommet (1) 18-0190 Wiper Gasket (1) 18-0440 Water Passage Gasket (1) 18-0880 Shif... More Details
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SEAL KIT OUTDRIVE WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2701-04 Power Trim Bushing Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2701-9 Power Trim Bushing For use on Mercruiser I/O: Fits 120hp/260hp Drive Units (S/N 6225276 & Down) Priced per Package of 8 Interchangeable with: Mercruiser Stern Drive 23-89574 23-61290... More Details
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Sierra 18-2705-9 Oil Seal For use on Johnson/Evinrude Outboard Engines. Used in multiple Water Pump Kits for Johnson/Evinrude Outboards. Pkg of 2 Interchangeable with: GLM 86491 Johnson/Evinrude Outbo... More Details
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Collar Keeper (Priced Per Pkg of 2) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2709-9 Wear Plate Gasket (Priced Per Pkg Of 2) - MW
Marine Warehouse
Sierra 18-2709-9 Wear Plate Gasket (Priced Per Pkg Of 2) For Johnson and Evinrude Outboard Engine Replaces: 336530 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2715 Check Valve Kit Sierra replacement check valve kit is for Mercruiser Alpha I Generation II and Bravo I, II, and III drives. Interchangeable with: GLM 12930 Mallory 9-78005 Mercruiser St... More Details
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Sierra 18-2724 Mercruiser Transom Seal Sierra high-quality engine parts are designed to meet OEM specifications. This transom seal is for Alpha Gen II, and All Bravo engines. Interchangeable with: G... More Details
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Thermostat Cover Gasket - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2742 Shift Shaft Boot Replaces 85552001 - MW
Marine Warehouse
Sierra 18-2742 Shift Shaft Boot Sierra replacement shift shaft boot. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Interchangeable with: Chrysler/Force/US Marine... More Details
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Sierra 18-2777 Thermostat Housing Sierra thermostat housing for models with power trim. Interchangeable with: GLM 23011 Volvo Penta 854031 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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HOSE CONNECTION WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Lower Unit Seal Kit - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2801 Water Pump Gasket Sierra high quality engine parts are designed to meet OEM specifications. For Mercury and Mercruiser engines. Interchangeable with: GLM 31030 Mallory 9-60028 Mercruise... More Details
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Sierra Water Pump Gasket Priced Per Pkg of 2 Special Order est. 10 Days For use on Mercury/Mariner Outboard Engines, 4-6 cyl. Replaces: 27-32438 WARNING: Cancer and Reproductive Harm - P65Warnings.ca... More Details
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Sierra 18-2802 Carb Mounting Gasket Replaces 27-481641 - MW
Marine Warehouse
Sierra 18-2802 Carburetor Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 31500 Mercury Marine 27-481641 27-48164 WARNING: Cancer an... More Details
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Sierra 18-2819-1-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2) Sierra replacement exhaust elbow gasket fits MCM 120 engines. Fits: 120 GM 153 I/L4 1964-1982 160 GM 250 I/L6 1967-1969 Use with: 18-1973 ... More Details
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Outdrive Gasket (Priced Per Pkg of 5) - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2823-9 Lower Water Pump Gasket (Priced Per Package Of 2) Sierra 18-2823-9 Lower Water Pump Gasket (2 Pack) is a replacement part for Mercury and Mercruiser engines. Sierra aftermarket engine... More Details
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This product has been discontinued by the manufacturer and has been superseded by Mercury 18-2824-9 Sierra 18-2824 Upper Water Pump Gasket Interchangeable with: GLM 31070 Mallory 9-60029 Mercury Marin... More Details
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Sierra 18-2826 Water Pump Base Gasket Interchangeable with: GLM 31040 Mallory 9-60036 Mercruiser Stern Drive 27-856704 27-33146 Mercury Marine 27-856101 27-85610 27-33146 WARNING: Cancer and Reproduct... More Details
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Water Pump Gasket (Priced Per Pkg of 2) - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2832-1-9 Manifold End Cap Gasket (2 Pack) Fits: MCM 120, 140, 165 (in-line 6 cyl.)& Ford & GM V-8 engines Sold as a package of 2 Interchangeable with: Barr MC47-27-48043 GLM 31490 Mallory 9-... More Details
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Sierra 18-2833-9 MerCruiser Exhaust Elbow Gasket (Priced Per Pkg Of 2) These exhaust elbow gaskets are designed for use with MerCruiser engines. Application Info Fits MerCrusier V8 Ford engines Fits M... More Details
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Sierra 18-2840-9 Bell Housing Gasket Replaces 27-35982 - Pack of 5 Supersedes: 18-2840 Interchangeable with: GLM 31160 Mercruiser Stern Drive 27-35982 WARNING: Cancer and Reproductive Harm - P65Warnin... More Details
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Water Pump Base Gasket (Priced Per Pkg of 2) - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Carb Base Gasket (Priced Per Pkg of 2) - Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2855 Shift Housing Gasket Replaces 0314082 - MW
Marine Warehouse
Sierra 18-2855 Shift Housing Gasket for Johnson, Evinrude Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 33420 Johnson/Evinrude Outboard 314082 314... More Details
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GASKET - Special Order Item est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2878 Baffle Gasket NLA. Superseded by 18-2878-9 Interchangeable with: GLM 34350 Johnson/Evinrude Outboard 319710 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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