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OMC Internal Engine Parts
Mercury 1395-83181 Valve Seat Kit Genuine Mercury OEM replacement engine part Interchangeable: Sierra 18-7061 Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an... More Details
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Mercury-MerCruiser 27-62386001 Thermostat Gasket The Mercury-MerCruiser 27-62386001 Thermostat Gasket is a replacement sealing component for compatible Mercury and MerCruiser cooling system applicatio... More Details
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Mercury-MerCruiser 33395A-2 Exhaust Manifold Gasket Set - MW
OMC Internal Engine Parts
Exhaust Manifold Gasket Set, Mercury - Mercruiser 27-33395A-2 For GM 305, 327, 350 cid engines with end outlet exhaust manifolds. Replaces: Aqua Power 736 Felpro 17420 GLM 39280 Mallory 9-61402 OMC 38... More Details
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Quicksilver 27-33395 MerCruiser V8 Exhaust Manifold Gasket - MW
OMC Internal Engine Parts
Quicksilver 27-33395 MerCruiser V8 Exhaust Manifold Gasket OEM-quality exhaust manifold gasket for V8 MerCruiser sterndrive and inboard engines built by General Motors. Designed to maintain proper sea... More Details
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Sierra 18-0104-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2) - MW
OMC Internal Engine Parts
Exhaust Elbow 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 18-0166-9 Grommet (Priced Per Pkg Of 2) - MW
OMC Internal Engine Parts
Sierra 18-0166-9 Grommet (Priced Per Pkg Of 2) Sierra replacement grommet for OMc Stern Drives. Interchangeable with: GLM 86620 OMC Stern Drive 911705 WARNING: Cancer and Reproductive Harm - P65Warnin... More Details
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Washer - Special Order est. 10 Days Replaces: OMC 0909748 Redline RL0188 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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OMC Wiper Gasket by Sierra - Special Order est. 10 Days Replaces: OMC 0912157 Aqua Power 1971 Redline RL0190 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-0346 Valve Cover Gasket for 4.1L and 6 cylinder Engines For Mercruiser, OMC GM 250 CID (4.1L), 160/165/200 (6 cyl.). Interchangeable with: GLM 35070 Mallory 9-61318 Mercruiser Stern Drive 27... More Details
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Sierra 18-0347 Valve Cover Gasket Replaces 27-851040 - MW
OMC Valve Cover Gaskets
Sierra 18-0347 Valve Cover Gasket for 2.5 & 3.0L Mercruiser, Volvo, OMC Sierra high-quality replacement engine parts are designed to meet OEM specifications. For GM 153 & 181 CID (2.5L & 3.0L) Interch... More Details
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Sierra 18-0348 Oil Pan Gasket Set Sierra replacement oil pan gasket set for OMC Inboard and Mercruiser Stern Drive. Fits: MCM/MIE GM V-8 (427, 454, 482, 502 & 540 cid) engines (1969-1992) Interchangea... More Details
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Oil Pan Gasket Set - Special Order est. 10 Days Replaces: Mercury 27-90458A 1 OMC 0357159, 0458625, 0508876 Aqua Power 738, 1087 Felpro 17981 Redline RL0411, RL0153 WARNING: Cancer and Reproductive Ha... More Details
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Intake Manifold Gasket for Ford 2.3L by Sierra - Special Order est. 10 Days Replaces: OMC 0912471 GLM 32680 Redline RL0431 Mercury 878983 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-0440-9 Water Passage Gasket (Priced Per Pkg Of 2) - MW
OMC Internal Engine Parts
Water Passage 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 18-0465 Intake Manifold Gasket Set Sierra replacement intake manifold gasket set for Mercruiser and OMC stern drives. Fits: GM 454 CID Engines, 325, 330, 340, 350 HP and 454 Magnums, 7.4L Inter... More Details
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One Piece Rear Main Seal for Mercruiser, OMC, Volvo - Special Order est. 10 Days Replaces: Crusader 7070400 Mallory 9-61621 Mercury 26-14240 OMC 3852657, 0509394 Volvo 3852657 GLM 85790 Redline RL0519... More Details
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Sierra 18-0548 Adapter To Intermediate Housing Gasket - MW
OMC Internal Engine Parts
Sierra 18-0548 Adapter To Intermediate Housing Gasket Sierra replacement adapter to intermediate housing gasket for OMC Stern Drive. Interchangeable with: Barr OMC47909515 GLM 33900 Johnson/Evinrude O... More Details
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Sierra 18-0550 OMC Exhaust Manifold Plug Off Cap 1.25" I.D. Sierra high-quality engine parts are designed to meet OEM specifications. Features: I.D.: 1-1/4" For V8 Stern Drives and Inboards 1977 - pre... More Details
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Valve Cover Gasket for 5.0/5.7L GM Engines - Special Order est. 10 Days For GM 305/350, 5.0 & 5.7L Replaces: Crusader 7231330 Mallory 9-61305 Mercury 27-17467 OMC 3852687 Volvo 3852687 Aqua Power 1219... More Details
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Sierra 18-0673-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2) - MW
OMC Internal Engine Parts
Exhaust Elbow 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 18-0868 Intake Manifold Gasket Set Sierra replacement intake manifold gasket set for OMC Stern Drives, Mercruiser Stern Drives, and Volvo Penta engines. For OMC 5.7L 1994, 1996-97 Fits MCM/MIE ... More Details
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Sierra 18-0880 Shift Cover Gasket Fits OMC Stern Drive Cobra engines. Interchangeable with: GLM 33960 Johnson/Evinrude Outboard 911878 Mallory 9-60400 OMC Stern Drive 911878 WARNING: Cancer and Reprod... More Details
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Sierra 18-0880-9 Shift Cover Gasket (Priced Per Pkg Of 2) - MW
OMC Internal Engine Parts
Shift Cover Gasket for OMC Cobra (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 18-0939-9 Upper Gearcase Dipstick Gasket (2Pk) Replaces 0315189 - MW
OMC Internal Engine Parts
Upper Gearcase Dipstick Gasket by Sierra (Priced Per Pkg of 2) Replaces: OMC - 315189 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-0947-9 Pivot Cap Cover Gasket (Pkg Of 2) - MW
OMC Internal Engine Parts
Sierra 18-0947-9 Pivot Cap Cover Gasket (Pkg Of 2) Sierra Marine replacement pivot cap cover gasket for OMC Stern Drives. Sierra manufactures its aftermarket engine parts to meet OEM requirements. Sol... More Details
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Timing Cover Seal for most GM Based Engines - Special Order est. 10 Days Fits: 2.5L/153 CID 3.0L/181 CID I-6/230CID I-6/250CID 4.3L/V-6 5.0L/305 CID 5.7L/350 CID Replaces: Crusader 7080310 Mallory 9-6... More Details
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Sierra 18-1231 Intake Gasket Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines. Fits MCM 450, 500,... More Details
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Sierra 18-1233 Timing Cover Seal for 7.4L GM Engines Sierra replacement timing cover seal. Sierra aftermarket parts are manufactured to meet or exceed OEM requirements. Fits 7.4L/454 CID Interchangeab... More Details
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Sierra 18-1234 One Piece Rear Main Seal Sierra replacement one piece rear main seal for Mercruiser, Volvo Penta, and OMC Stern Drives. Fits: 7.4L/8.2L/454/502 Std. Rotation Interchangeable with: Mallo... More Details
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Sierra 18-1237 Oil Pan Gasket for 265 - 400 hp Sierra replacement oil pan gasket for Mercruiser Stern Drives, OMC Stern Drives and Volvo Penta engines. Fits MCM/MIE GM V-8 (305, 350 & 377 cid) engines... More Details
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Sierra 18-1238 Intake Gasket Set Replaces 27-11977 - MW
OMC Engine Gaskets
Sierra 18-1238 Intake Manifold Gasket Set (Pair of 2) for 4.3L Mercruiser, OMC, Volvo Engines Sierra replacement engine parts are designed to meet OEM specifications. Fits MCM 4.3L/LX Gen II (1993-199... More Details
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Standard Main Bearing for 2.5/3.0L Mercruiser, OMC, Volvo Fits: 2.5L/153 CID 3.0L/181 CID Replaces: Mercury 23-818469001 Redline RL1317 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2071 Oil Seal O.D.: 2.125" Shaft Size: 1.500" Width: 0.250" Interchangeable with: GLM 86010 OMC Stern Drive 981195 908065 908852 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-23871-9 Lower Unit Drain/Fill Screw (Pkg Of 50) - MW
OMC Internal Engine Parts
Sierra 18-23871-9 Lower Unit Drain/Fill Screw (Pkg Of 50) Fits OMC V-6, V-4 (1979-Up), 60-75 HP 3 cylinder, 20-35 HP (1985-97). Head Style: Slot Head Interchangeable with: GLM 22420 Johnson/Evinrude O... More Details
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Sierra 18-25251 Sealing Ring Special Order est. 10 Days WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2541 Rubber Impeller Housing Seal for OMC Cobra Sierra replacement rubber seal for OMC Stern Drives. Interchangeable with: GLM 86630 Johnson/Evinrude Outboard 911704 OMC Stern Drive 911704 W... More Details
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Sierra 18-2613 OMC Sterndrive Outdrive Gasket Set - MW
OMC Internal Engine Parts
Sierra 18-2613 OMC Cobra Sterndrive Outdrive Gasket Set For Use On All OMC "Clutch Dog" Cobra Sterndrives 1986 - 1993. Not For Use On King Cobra Sterndrives. Sierra replacement parts are manufactured ... More Details
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Sierra 18-2663 Lower Unit Seal Kit Replaces 0981797 - MW
OMC Internal Engine Parts
Sierra 18-2663 OMC Lower Unit Seal Kit - Replaces 0981797 Sierra high-quality engine parts are designed to meet OEM specifications. For use on 1977 OMC Stern Drive engines. Kit Contains: (4) 18-2012 O... More Details
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Sierra 18-2671 Lower Unit Seal Kit Replaces 0985612 - MW
OMC Internal Engine Parts
Sierra 18-2671 OMC Cobra Lower Unit Seal Kit Sierra high-quality engine parts are designed to meet OEM specifications. For Use On All 4 Cyl Cobras(1986-89). Kit Includes: (2) 18-0166 Grommet (1) 18-01... More Details
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Sierra 18-2815 Push Rod Cover Gasket for GM 3.0L Sierra high-quality engine parts are backed by an unmatched Sierra manufacturer's warranty. For use with Mercruiser Stern Drives, OMC Stern Drives, and... More Details
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Sierra 18-2845 Valve Cover Gasket Replaces 27-11999 - MW
OMC Valve Cover Gaskets
Valve Cover Gasket for 5.0 & 5.7L Mercruiser, Volvo, OMC For V-8 Engines (305/350)CID 5.0,5.7L Replaces: Chris Craft - 16.11-01236 Mercury - 27-11999 OMC - 0912965 Mallory - 9-61300 Crusader - 91351 P... More Details
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Sierra 18-2851 Swivel Bearing Gasket Replaces 0313368 - MW
OMC Internal Engine Parts
Sierra 18-2851 OMC Swivel Bearing Gasket Sierra replacement Swivel Bearing Gasket for OMC Stern Drives. Interchangeable with: Barr OMC47313368 GLM 33010 OMC Stern Drive 313368 WARNING: Cancer and Re... More Details
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Sierra 18-2860 Manifold End Cap Gasket - MW
OMC Internal Engine Parts
Sierra 18-2860 Manifold End Cap Gasket for OMC Sierra high-quality engine parts are designed to meet OEM specifications. For use on OMC Stern Drives. Interchangeable with: Barr OMC47311130 GLM 33340 O... More Details
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Sierra 18-2863 Tilt Clutch Cover Gasket Replaces 0308799 - MW
OMC Internal Engine Parts
OMC Tilt Clutch Cover Gasket by Sierra - Special order est. 10 Days Replaces: OMC - 0308799 GLM 33060 Redline RL2863 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2873 Water Jacket Gasket Replaces 0318335 - MW
OMC Internal Engine Parts
Sierra 18-2873 Water Jacket Gasket for Johnson, Evinrude Outboards Sierra high-quality engine parts are designed to meet OEM specifications and are backed by Sierra's unmatched manufacturer's warranty... More Details
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Sierra 18-2883-1 Manifold End Cap Gasket - MW
OMC Internal Engine Parts
Sierra 18-2883-1 Manifold End Cap Gasket Sierra replacement manifold end cap gasket for OMC Stern Drives. Sierra replacement parts are manufactured to meet or exceed OEM requirements. Interchangeable ... More Details
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Sierra 18-2911 Swivel Bearing Housing Gasket - MW
OMC Internal Engine Parts
Sierra 18-2911 OMC Swivel Bearing Housing Gasket Gasket Fits OMC Stringer Drive. Interchangeable with: GLM 34720 Johnson/Evinrude Outboard 910236 Mallory 9-60410 OMC Stern Drive 910236 WARNING: Cancer... More Details
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Sierra 18-2916-9 Water Pump Housing Gasket (2Pk) - MW
OMC Internal Engine Parts
Sierra 18-2916-9 Water Pump Housing Gasket (2 Pack) Sierra replacement water pump housing gasket for OMC Stern Drives. Sold as a pack of two. Interchangeable with: OMC Stern Drive 911702 WARNING: Canc... More Details
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Sierra 18-2918-9 Outdrive Gasket (Priced Per Pkg Of 5) - MW
OMC Internal Engine Parts
Sierra 18-2918-9 Outdrive Gasket (Priced Per Pkg Of 5) Sierra replacement outdrive gasket for OMC Stern Drives. Interchangeable with: GLM 34730 Mallory 9-62650 OMC Stern Drive 911836 915840 WARNING: C... More Details
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Sierra 18-29451-9 Mercury MerCruiser Drain Screw Gasket 50 Pack - MW
OMC Internal Engine Parts
Drain Screws Gaskets for Mercruiser, Mercury, OMC (50 pk) Replaces: GLM - 21170 Mallory - 9-60101 Merc - 12-19183-3 Redline - RL2945 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-2946 Head Gasket Replaces 27-52364 This head gasket fits GM 181 3.0L CID engines. Replaces: Mercruiser OEM 27-52364, 27-810841, F15000204 OMC and Volvo OEM 3853336, 908611, 913274, 914814 Ch... More Details
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Sierra 18-2947-9 Thermostat Gasket (Pkg Of 2) - MW
OMC Internal Engine Parts
Sierra 18-2947-9 Thermostat Gasket (Pkg Of 2) Sierra replacement thermostat gasket for OMC Stern Drives. Package of 2 Interchangeable with: GLM 33840 Mallory 9-60017 OMC Stern Drive 310913 WARNING: Ca... More Details
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Sierra 18-3874 Head Gasket Sierra replacement head gasket for MerCruiser and OMC Stern Drives. Use with 18-1258 Head Gasket Set Application Info: Fits (8.2L) 502 CID Fits MCM 425, 450, 465, 500, 502 M... More Details
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Sierra 18-3876 Head Gasket for 5.0 & 5.7L OMC, Volvo, Mercruiser Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-8 (283, 305, 327, 350 & 377 CID) engines. F... More Details
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Sierra 18-3877 Head Gasket for 7.4L Mercruiser, OMC, Volvo Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser and OMC Stern Drives. Fits MCM/MIE GM V-8 (427, 454 ... More Details
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Sierra 18-3878 Head Gasket for OMC, Mercruiser, and Chrysler Sierra replacement engine parts are designed to meet OEM specifications. Sierra 18-3878 Head Gasket fits MCM 3.7L engines (1976-1989). For ... More Details
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Sierra 18-3879 Head Gasket Replaces 27-879150140 - MW
OMC Head Gaskets
Sierra 18-3879 Head Gasket Sierra replacement head gasket for Mercruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines. Fits: GM 262 (4.3L) CID Engines Interchangeable with: Crusader 33408 G... More Details
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Sierra 18-3883 Head Gasket for Ford 5.0 & 5.8L Engines For: Ford 302 (5.0L) 351 (5.8L) CID Eng Interchangeable with: Chrysler/Force/US Marine F724026 GLM 36170 Mallory 9-63708 Mercruiser Stern Drive 2... More Details
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Sierra 18-3887 Head Gasket for 7.4L Crusader, Mercruiser, OMC, and Volvo Engines Sierra high-quality engine parts are designed to meet OEM specifications. For 7.4L 454 CID Gen V and VI (1992 & up) In... More Details
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Sierra 18-3937 Piston Rings Replaces 0328506 - MW
OMC Pistons & Rings
Sierra 18-3937 Standard Piston Ring Set Sierra high-quality marine parts are engineered to meet OEM specifications. All pistons are supplied complete with piston rings and wrist pin. Standard size For... More Details
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.030 Piston Rings for Mercruiser, OMC, Volvo - Special Order est. 10 Days Fits: 3.0L/181 CID 4.3L/V-6 5.7L/350 CID Ford 5.0L/302 CID Replaces: Crusader 12372 Mercury 39-17465 OMC 0328516, 3853270 Volv... More Details
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Sierra 18-4088 Evinrude/Johnson Piston Rings Sierra replacement piston rings for Evinrude/Johnson/OMC. Bore Size: 3.600 Standard Interchangeable with: Johnson/Evinrude Outboard 436353 Mallory 9-54424 ... More Details
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This item has been discontinued by the manufacturer and is no longer available. Sierra 18-4173 Standard Piston Kit for MerCruiser, OMC, Volvo Fits: 4.3L/V-6 5.7L/350 CID Interchangeable with: GM 14077... More Details
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Piston Kit - Special Order est. 10 DaysWARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-4248-9 Johnson/Evinrude Drain/Fill Plug Washer 5 Pack - MW
OMC Internal Engine Parts
Drain/Fill Plug Washer (Priced Per Pkg of 5) Features: Material: Plastic Package of 5 Special Order est. 10 Days Supersedes 18-4248 Interchangeable With: Johnson/Evinrude Outboard 311598 Mallory 9-604... More Details
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Sierra 18-42481-9 Drain/Fill Plug Washer (Priced Per Pkg Of 50) - MW
OMC Internal Engine Parts
Drain/Fill Plug Washer (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 18-4250-9 Washer (Priced Per Pkg Of 5) - MW
OMC Internal Engine Parts
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 18-4253-9 Drain Screw O-Ring (5Pk) Replaces 0336982 - MW
OMC Internal Engine Parts
Drain Screw O-Ring (5 pk) for Johnson, Evinrude, OMC Used with Drain Screw 18-1236 and is a special order - est. 10 Days. Replaces: OMC - 336982 Mallory 9-76653 GLM 45290 WARNING: Cancer and Reprodu... More Details
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Sierra 18-42531-9 Drain Screw O-Ring (Priced Per Pkg Of 50) - MW
OMC Internal Engine Parts
Drain Screw O-Ring (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 18-4373 Overhaul Gasket Set for OMC 110, 120 HP & 2.5L Sierra high-quality engine parts are designed to meet OEM specifications. For 110, 120 HP & 2.5L (1965-86) Interchangeable with: GLM 39810... More Details
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Overhaul Gasket Set for OMC 140 hp and 3.0L - special order est. 10 days For 140 HP and 3.0L (1973-88) Replaces: Mallory 9-61100 GLM - 39820 WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Sierra 18-4394 Exhaust Manifold Gasket Set - MW
OMC Internal Engine Parts
This product has been discontinued by the manufacturer and has been superseded by Mercury 27-33395A-2 Exhaust Manifold Gasket Set - by Sierra Special Order est. 10 Days For: GM 350 (5.7L) CID Eng; 250... More Details
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Cylinder Head Assembly for 4.3L Vortec Additional Details: Intake Manifold Mounting Bolts: 8 8 Valves Cover: Center Mount Note: Not for use with engines using factory roller rocker arms Replaces: 4.3L... More Details
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Sierra 18-7145 O-Ring Replaces 25-64068 - MW
OMC Internal Engine Parts
Sierra 18-7145 O-Ring Sierra high-quality engine parts are designed to meet OEM specifications. I.D.: 0.250" Width: 0.100" Interchangeable with: GLM 81080 Johnson/Evinrude Outboard 333572 Mallory 9-76... More Details
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Sierra 18-7477 O-Ring Sierra high-quality engine parts are designed to meet OEM specifications. For OMC Stern Drives. I.D.: 0.480" Width: 0.100" Interchangeable with: GLM 41120 OMC Stern Drive 909048 ... More Details
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Sierra 18-8369 OMC Oil Indicator Sierra high-quality engine parts are designed to meet OEM specifications and are backed by Sierra's unmatched manufacturer's warranty. Fits OMC Cobra (1986-93) without... More Details
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