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OMC Cooling System

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Parts Selection Guide

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      • Sierra 18-2833 Exhaust Manifold Elbow Gasket Replaces 27-997772
        List Price: $3.61
        Now: $2.74

        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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      • Sierra 18-3348 Water Pump Housing Kit Replaces 0984461
        List Price: $46.60
        Starting At: $35.42

        Sierra 18-3348 OMC Cobra Water Pump Kit (w/Housing) Manufactured for All OMC Cobra Drives.  Use With: Impeller 18-3058 Contains: Water Pump Housing 18-3206 Water Pump Housing Gasket 18-2916 Pump Liner 18-3145 Impeller Plate...

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      • Sierra 18-2917 Thermostat Gasket Replaces 27-530451
        List Price: $4.26
        Starting At: $3.20

        Thermostat housing gasket for Mercruiser, OMC, Volvo Gasket has brass grounding rivets Replaces: GLM - 35060 Merc - 27-33918, 27-53045-1 Mallory - 9-60007 OMC - 0312797 Volvo - 835417  

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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 18-3212-1 Impeller Kit Replaces 0984461
        List Price: $45.64
        Now: $31.95

        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: $38.84
        Starting At: $27.19

        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: $29.47
        Now: $20.63

        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: $23.74
        Starting At: $16.62

        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 18-3058 Water Pump Impeller Replaces 0777128
        List Price: $20.20
        Now: $14.14

        Sierra 18-3058 OMC Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. For Use On Engine Models: 2.3L 1987-1990 2.5L 1986 3L 1986-1992 4.3L 1986-1992 5.0L 1986-1992 5.7L 1986-1993 5.8L 1989-1992 7.5L...

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      • Sierra 18-0550 Plug Off Cap Replaces 0764799
        List Price: $10.51
        Starting At: $7.99

        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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      • Sierra 18-3577-2 Circulating Water Pump Replaces 8504541
        List Price: $206.00
        Starting At: $144.20

        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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      • 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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      • 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: $22.39
        Now: $15.67

        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: $281.39
        Starting At: $196.98

        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 18-4263 Pipe Plug Replaces 22-32802
        List Price: $4.19
        Starting At: $3.19

        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 18-1998-1 Exhaust Manifold
        List Price: $292.14
        Now: $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 18-7316 Hose Clamp 3"-5" Replaces 54-815504372
        List Price: $7.76
        Now: $6.90

        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: $38.89
        Now: $27.22

        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 18-710-16-2 Hose Clamp 1-1/16"-1-1/2"
        List Price: $2.77
        Starting At: $2.11

        Sierra 18-710-16-2 Stainless Steel Hose Clamp 1-1/16" - 1-1/2" All components of the Sierra 18-710-16-2 Hose Clamp are manufactured from Marine Grade 316 stainless steel. Diameter Size: 11/16" to 1-1/2" Std #: 016 s/s from 18-7310

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      OMC Sterndrive Cooling System Components