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OMC Cooling System

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Parts Selection Guide

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      • Sierra 18-4218 Drain Tap Replaces 22-16951Q1
        List Price: $9.99
        Starting At: $6.55

        Sierra 18-4218 Drain Tap for Mercruiser, Volvo, OMC Sierra high-quality engine parts are designed to meet OEM specifications. Used with most OEM Manifolds. Fits Mercruiser cylinder blocks & exhaust manifolds Material: Brass Size: 1/4"...

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      • Sierra 18-2833 Exhaust Manifold Elbow Gasket Replaces 27-997772
        List Price: $2.99
        Starting At: $2.22

        Sierra 18-2833 Mercruiser Exhaust Elbow Gasket Sierra high-quality engine parts are designed to meet OEM specifications.  Fits MCM 120 (1993 & newer), 140/3.0L, 470, 165 in-line 6 cyl., GM V-8 small block (1982 & older) Fits Ford...

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      • Exhaust Manifold Gasket , Mercury - Mercruiser 27-33395
        List Price: $9.52
        Starting At: $7.93

        Exhaust Manifold Gasket , Mercury - Mercruiser 27-33395 Fits MCM/MIE GM V-8 (283, 305, 350,  and 377 CID) engines Replaces: GLM 31100 Mallory 9-61401 Felpro 17420 OMC 3852468 Redline RL0872 Sierra 18-0872

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      • Sierra 18-0549 Plug Off Cap Replaces 3852476
        List Price: $10.98
        Starting At: $7.84

        Sierra 18-0549 Plug Off Cap 1" I.D. Sierra high quality engine parts are designed to meet OEM specifications. For V8 Stern Drives and Inboards 1977 - present. Interchangeable with: GLM 22290 Johnson/Evinrude...

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      • Sierra 18-3212-1 Impeller Kit Replaces 0984461
        List Price: $44.49
        Starting At: $28.95

        Sierra 18-3212-1 OMC Cobra Impeller Repair Kit Sierra high-quality engine parts are designed to meet OEM specifications. Kit Includes: (1) 18-2541 O-Ring (1) 18-2916 Water Pump Housing Gasket (1) 18-3058 Impeller (1) 18-3121 Impeller Plate (1)...

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      • Sierra 18-2779 Exhaust Hose Replaces 3852696
        List Price: $36.99
        Starting At: $26.07

        Sierra 18-2779 Upper Exhaust Hose Sierra replacement upper exhaust hose for OMC Stern Drives, and Volvo Penta engines. Replaces: Mallory 9-72802 OMC Stern Drive 3852696 Volvo Penta 3852696 GLM 89224  

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      • Sierra 18-15400 V-Belt Replaces 0311606
        List Price: $25.49
        Starting At: $15.60

        V-belt for OMC, Volvo, Mercruiser 4 cyl Engines- Effective Length 40", Top Width 29/64" Details: High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt. The compression...

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      • Sierra 18-3653 Thermostat Kit
        List Price: $34.49
        Starting At: $16.15

        Sierra 18-3653 OMC, Volvo 160 Degree Thermostat Kit Sierra high-quality engine parts are designed to meet OEM specifications. Used on OMC, Volvo Sterndrives Marine engines. Kit Includes: (1) 18-2858 Thermostat Gasket (1) 18-2947 Thermostat...

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      • Sierra 18-0550 Plug Off Cap Replaces 0764799
        List Price: $10.49
        Starting At: $6.95

        Sierra 18-0550 OMC Exhaust Manifold Plug Off Cap 1.25" I.D. Sierra high-quality engine parts are designed to meet OEM specifications. For V8 Stern Drives and Inboards 1977 - present. I.D.: 1-1/4" Interchangeable...

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      • Water Temperature Sender, Mercury - Mercruiser 806490T
        List Price: $32.99
        Starting At: $27.36

        Water Temperature Sender, Mercury - Mercruiser 806490T 3/8 in. x 18 NPT threads, used for temperature guage Fits MCM/MIE engines Replaces: Mallory 9-42400 OMC 0509447 Redline RL5897 Sierra 18-5897 Mercury 97257A 1, 806490

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      • Sierra 18-3577-2 Circulating Water Pump Replaces 8504541
        List Price: $199.99
        Starting At: $132.22

        Big Block Water Circulating Pump for Mercruiser, Volvo, OMC For: Big block GM engines with stamped steel timing covers (Bi-Directional) Used on Mercruiser, Crusader, OMC, Pleasurecraft and Volvo Penta Marine engines. s/s from...

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      • 40" V Belt, Mercury - Mercruiser 57-69143Q
        List Price: $28.99
        Starting At: $23.93

        40" V Belt, Mercury - Mercruiser 57-69143Q Replaces: Aqua Power 1551 OMC 0311606 Pro Marine 18-15400 Sierra 18-15400 Volvo 3852106

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      • Sierra 18-3670 Thermostat Kit
        List Price: $20.99
        Starting At: $14.58

        Sierra 18-3670 160 Degree Thermostat Kit for OMC & Volvo Fits: 2.5L & 3.0L OMC and Volvo Penta Marine engines (1982-88) Kit Includes: (1) 18-3558 Thermostat (1) 18-2858 Thermostat Housing Cover Gasket (1) 18-0929 Thermostat...

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      • Sierra 18-1997-1 Exhaust Manifold
        List Price: $281.49
        Starting At: $162.95

        Universal Exhaust Manifold with Mounting Package by Sierra For Port & Starboard Sides. Universal Center Riser Manifold. Fits: Chriscraft 283, 302, 307, and 350 CID Engines. Crusader 283 and 327 CID Engines thru 1964; 305, 307 and 350 CID Engines 1965...

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      • Sierra 18-1998-1 Exhaust Manifold
        List Price: $292.49
        Starting At: $204.49

        Exhaust Manifold - Port & Starboard for Ford V8 Engines by Sierra Fits Port and Starboard Sides. Universal Center Riser Manifold. Use With: Exhaust Manifold Gasket: 18-0183 Exhaust Manifold Gasket Set: 18-0603 Exhaust Manifold Mounting Kit: 18-8538...

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      • Sierra 18-4263 Pipe Plug Replaces 22-32802
        List Price: $4.49
        Starting At: $3.02

        Sierra 18-4263 Pipe Plug 1/8"-27 NPT Sierra replacement pipe plug. Thread Size: 1/8" - 27 NPT Material:...

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      • Sierra 18-7316 Hose Clamp 3"-5" Replaces 54-815504372
        List Price: $9.26
        Starting At: $6.65

        Sierra 18-7316 Stainless Steel Hose Clamp 3" - 5" Sierra hose clamp manufactured from marine grade 316 stainless steel. This clamp is designed to fit many applications from 5/16" to 7" diameter hoses. Diameter Size: 3" to 5" Std. No.:...

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      • Sierra 18-2781 Marine Exhaust Hose
        List Price: $37.99
        Starting At: $26.49

        Sierra 18-2781 Lower Exhaust Hose Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: GLM 89230 Mallory 9-72801 OMC Stern Drive 3852742 Volvo Penta 3852742

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      • Sierra 18-0182 Thermostat Gasket Replaces 27-62386001
        List Price: $1.99
        Starting At: $1.18

        Sierra 18-0182 Thermostat Gasket Thermostat Gasket for Johnson/Evinrude Outboards, Mercury engines, Mercury Race Outboards and Mercury Sport Jet engines. Interchangeable with: GLM 30610 Johnson/Evinrude...

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      • Sierra 18-0418 Exhaust Manifold Mounting Gasket Replaces 27-46820
        List Price: $14.49
        Starting At: $10.20

        Sierra 18-0418 Exhaust Manifold Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-8 (454, 482, 496, 502 & 504 cid) engines. Interchangeable...

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      OMC Sterndrive Cooling System Components