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  • Sierra 18-15400 V-Belt - 29/64" x 40"
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    Sierra 18-15400 V-Belt - 29/64" x 40"
    Sierra's 18-15400 V-Belt is interchangeable with Mercury 57-32850, 57-69143, 57-69143Q, 57-69143T and OMC 311606. It features a length of 40" (101.6cm) and a width of 29/64" (11.5mm). High strength synthetic cords resist shockload. Low stretch properties assure uniform performance over the life of the...
    $23.20
    $32.64
    $23.20
  • Sierra 18-15440 Replacement V-Belt - 44" Length
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    Sierra 18-15440 Replacement V-Belt - 44" Length
    High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt. The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords. Cogs are molded to...
    $25.31
    $43.34
    $25.31
  • Sierra 18-1848 Cast Iron Manifold for 4.3L V-6
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    Sierra 18-1848 Cast Iron Manifold for 4.3L V-6
    Sierra's 18-1848 Manifold is designed for use with OMC stern drive and Volvo Penta 4.3L V-6 applications. It is interchangeable with OMC 3852338, 3857656, 914899, Volvo Penta 3847499, 3857656, GLM 51480, and HGE 7656. Use with Sierra's 18-1909-1 Riser. Each Sierra product meets or...
    $376.31
    $485.64
    $376.31
  • Sierra 18-1909-1 Manifold riser w/hardware
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    Sierra 18-1909-1 Manifold riser w/hardware
    Fits many GM & Ford center rise manifolds. 4" outlet 7 °. Material: CAST IRON. Use with 18-1848 manifold, 18-1986-1 manifold, 18-8507 exhaust elbow mounting kit, and 18-0943-2 gasket, exhaust elbow.
    $295.33
    $384.91
    $295.33
  • Sierra 18-1935-1 Cast Iron Riser - Each
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    Sierra 18-1935-1 Cast Iron Riser - Each
    Sierra's 18-1935-1 Riser is constructed of durable cast iron material. Use with Sierra's 18-1931-1 Manifold, 18-8510 Exhaust Elbow Mounting Kit, and 18-2971-1 Exhaust Manifold Gasket. The riser comes with (1) Sierra 18-2971-1 Exhaust Manifold Gasket, (4) Sierra 18-4236 Washers, and (2) Zinc Bolts (5/16-18...
    $184.62
    $208.78
    $184.62
  • Sierra 18-1952-1 Manifold
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    Sierra 18-1952-1 Manifold
    The Sierra 18-1952-1 Manifold is interchangeable with the following: Barr MC-1-99746, GLM 51220, Mallory 9-40505, Mercruiser 99746A8, 99746A17, 99746A3, Osco 9745. Each Sierra product meets or exceeds the original equipment part it replaces. Port & Starboard.
    $317.36
    $397.97
    $317.36
  • Sierra 18-1953-2 Manifold for MCM/MIE GM V8 305/350/377 CID Engines (1983-2002)
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    Sierra 18-1953-2 Manifold for MCM/MIE GM V8 305/350/377 CID Engines (1983-2002)
    The Sierra 18-1953-2 Manifold fits MCM/MIE GM V8 (305, 350, 377 CID) Engines 1983-2002. The manifold is supplied with gaskets and will fit port and starboard applications. It is ideally suited for freshwater applications. Interchangeable with the following part numbers: Barr MC-1-87114, GLM 51230,...
    $233.32
    $439.74
    $233.32
  • Sierra 18-1975-1 Riser with Exhaust Tube for Late Model Mercruiser 4-Cylinder Engines
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    Sierra 18-1975-1 Riser with Exhaust Tube for Late Model Mercruiser 4-Cylinder Engines
    Sierra's 18-1975-1 Riser with Exhaust Tube is designed for use with late model Mercruiser 4-cylinder engines and MCM 2.5L and 3.0L/LX 1982 and newer. The riser includes one Sierra 18-2748 Exhaust Boot, one 18-2833 Exhaust Elbow Gasket, four 18-710-72-2 Hose Clamps (4-1/16 TO 5),...
    $281.88
    $134.03
    $281.88
  • Sierra 18-1976-2 Manifold Elbow
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    Sierra 18-1976-2 Manifold Elbow
    Manifold elbow replacement from Sierra. Recommended for use within saltwater applications. Comes with 18-0897, 18-4203 & 18-4258. Fits: MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older). Use with 18-0672 Gasket, Exhaust Elbow, 18-0897 Gasket, Exhaust, 18-1952-1 Manifold, 18-1953-2...
    $179.84
    $336.76
    $179.84
  • Sierra 18-1989 Thermostat Housing for Mercruiser 8M0061381/861006A1
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    Sierra 18-1989 Thermostat Housing for Mercruiser 8M0061381/861006A1
    Sierra's 18-1989 Replacement Thermostat Housing replaces O.E. Part Numbers 8M0061381 and 861006A1. Use Sierra's 18-1989K Thermostat Service Kit for replacement parts. Constructed of durable stainless steel. Check manufacturer recommendations to ensure a proper fit before purchasing. Built with marine grade materials.
    $264.71
    $340.53
    $264.71
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  • Sierra 18-1989K Thermostat Service Kit
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    Sierra 18-1989K Thermostat Service Kit
    Sierra's 18-1989K Thermostat Service Kit is designed for use with 18-1989 Thermostat Housing. The kit contains Sierra's 18-2917 Thermostat Housing Gasket, 18-2554 Thermostat Cover Gasket, and 18-2844 Thermostat Cover Gasket. Each Sierra product meets or exceeds the original equipment part it replaces.
    $14.16
    $25.34
    $14.16
  • Sierra 18-1997-1 Manifold
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    Sierra 18-1997-1 Manifold
    The Sierra 18-1997-1 Manifold is built with precision and with high-quality, marine-grade components. Designed to be interchangeable with the following: GLM 56230, Mallory 9-40110, Osco 994. Each Sierra product meets or exceeds the original equipment part it replaces.
    $322.92
    $348.91
    $322.92
  • Sierra 18-2002 Oil Seal
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    Sierra 18-2002 Oil Seal
    Sierra's 18-2002 Oil Seal is designed for use in marine applications. It is interchangeable with Chrysler/Force/US Marine 26-76868, GLM 85130, Honda Outboard 91252-ZW1-003, Johnson/Evinrude Outboard 0320862, Mallory 9-76202, Mercruiser Stern Drive 26-30550, 26-76868, Mercury Marine 26-30550, 26-70019, 26-73838, 26-76868, and OMC Stern Drive 320862....
    $12.33
    $14.51
    $12.33
  • Sierra 18-2100 Heavy-Duty Gimbal Bearing
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    Sierra 18-2100 Heavy-Duty Gimbal Bearing
    Sierra's 18-2100 Heavy-Duty Gimbal Bearing is designed for use with Mercruiser 120HP/140HP with gimbal trim sender (2791957-6225576), 165HP (2763442 and higher), 225S (3856268-4200499), 228HP (4782330 and higher), 233HP (4200500 and higher), 250JP (4791300 and higher). It is interchangeable with GLM 21900, Mallory 9-72410, Mercruiser...
    $61.63
    $84.97
    $61.63
  • Sierra 18-21001 Gimbal Bearing
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    Sierra 18-21001 Gimbal Bearing
    Sierra's 18-21001 Gimbal Bearing is designed for use with Mercruiser MC-I, R, MR & Alpha (1974-1997), Gen II (1991-1997), Bravo I/II/III (1988-1995) engines. It is interchangeable with Mercruiser 30-60794A2, 30-60794A4, 30-60794B4, and 30-879194A02. Each Sierra product meets or exceeds the original equipment part it...
    $77.54
    $81.42
    $77.54
  • Sierra 18-21005 Gimbal Bearing
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    Sierra 18-21005 Gimbal Bearing
    Sierra's 18-21005 Gimbal Bearing is designed to fit all Bravo Alpha One Gen II engines 1998 and newer. It is interchangeable with Mercruiser 30-862540A04, 30-862540A3, 30-862540T1, and 30-879194A01. Each Sierra product meets or exceeds the original equipment part it replaces. Each Sierra product meets...
    $91.32
    $125.87
    $91.32
  • Sierra 18-21006 Gimbal Bearing
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    Sierra 18-21006 Gimbal Bearing
    Sierra's 18-21006 Gimbal Bearing is designed to fit Gen II (1998-2010), Bravo I/II/III and X/XR/XZ (1996-2010) engines. It is interchangeable with Mercruiser 30-862540A04, 30-862540A3, 30-862540T1, and 30-879194A01. Each Sierra product meets or exceeds the original equipment part it replaces. Each Sierra product meets or...
    $94.27
    $97.56
    $94.27
  • Sierra 18-2104 U-Joint Cross and Bearing
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    Sierra 18-2104 U-Joint Cross and Bearing
    Sierra's 18-2104 U-Joint Cross and Bearing fits all #1 and Alpha I units (s/n 1684188-B418818) and TR/TRS and II SSM, as well as all OMC Cobra Drives (1986-1989). Includes both straight and 90 degree grease fitting. It is interchangeable with GLM 28020, Mallory 9-72404,...
    $49.21
    $61.38
    $49.21
  • Sierra 18-2115 Power Trim Hose
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    Sierra 18-2115 Power Trim Hose
    The Sierra 18-2115 Power Trim Hose is built with precision and quality materials. Designed to be interchangeable with the following: GLM 26240, Mallory 9-71509, Mercruiser 32-864959 and 32-999031. Each Sierra product meets or exceeds the original equipment part it replaces.
    $49.94
    $64.64
    $49.94
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  • Sierra 18-2141 Engine Mount Bolt Kit
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    Sierra 18-2141 Engine Mount Bolt Kit
    Sierra's 18-2141 Engine Mount Bolt Kit is designed for use with Mercruiser R, MR, Alpha I, Alpha Gen II, and Bravo stern drives. The kit contains: (1) Sierra 18-0681 Washer, (1) Sierra 18-3728 Lock Nut, (1) Sierra 18-3729 Motor Mount Bolt, (1) Washer (0.5156...
    $24.38
    $23.76
    $24.38

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