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Sierra Marine
Sierra Exhaust Elbow (Dry Joint) - Mercruiser - S18-1845
Sierra Exhaust Elbow (Dry Joint) - Mercruiser - S18-1845. Replaces: 864591T02 Fits: 2004 & Up V6 & V8(305, 350, 377) SN 0W310000 & Up, 2002 & Up V8(350 & 377) SN 0M317000 & Up Use with: Manifolds: S18-1843, S18-1842 Dry...
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1972
Sierra Elbow - Mercruiser - S18-1972. Replaces: 76325A2, 12076A2 Barr MC-20-76325 Fits: Most late Model 120, 140 HP Mercruiser applications Use with: Manifold: S18-1955-1, S18-1954-1, S18-1956-3, S18-1901 Elbow Gasket: S18-2833 Mounting...
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1973
Sierra Elbow - Mercruiser - S18-1973. Replaces: 39920, 39920A1, 55538A2 Barr MC-20-55538 Fits: Most early Model 120 HP Mercruiser applications Part Number SRA-S18-1973
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1974-1
Sierra Elbow - Mercruiser - S18-1974-1. Replaces: 98502A2, Barr MC-20-98502 Fits: V-6 & V-8 applications 0° (3” O.D. Riser) Comes with S18-0897 gasket & brass plugs Part Number SRA-S18-1974-1
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Sierra Marine
Sierra Riser - Mercruiser - S18-1975-1
Sierra Riser - Mercruiser - S18-1975-1. Replaces: Mercruiser 12076A1, 12076A2, 95864A2 Marine Power 6000-33A Fits: late Model Mercruiser 4 cyl. Engines Use with: Manifold: S18-1955-1, S18-1954-1, S18-1956-3, S18-1901 Riser Gasket:...
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1976-2
Sierra Elbow - Mercruiser - S18-1976-2. Replaces: Mercruiser 44354A3, 44354A9, 44354A10, 44354A13, 807914A1, 807988A2, 807988A03 Marine Power 0992-400, Barr MC-20-44354 Fits: Most Mercruiser V-6 & V-8 applications 7° (4” O.D. Riser)...
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1978
Sierra Elbow - Mercruiser - S18-1978 Replaces: 76771A3, A2, 60427A2, 53779A2, 53779A1 Barr MC-20-76771 V-8 Inboard Applications Only Use with: Manifold: S18-1950-1, S18-1951-1, S18-1958-1, S18-1962-1 Elbow Gasket: S18-2833 Mounting Kit:...
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Sierra Marine
Sierra Manifold Riser Spacer 3" - Mercruiser - S18-1908
Sierra Manifold Riser Spacer 3" - Mercruiser - S18-1908. Replaces: 93320 Mercruiser GM V6 229 and 262cu.in. (Models: 185 and 205),GM Small Block V8 305-350cu. in. (Models: 200, 228, 230, 260 and 898), GM Big Block V8 454cu.in. (Models: 330, 340 and 7...
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Sierra Marine
Sierra Manifold Riser Spacer Kit - Mercruiser - S18-1908K
Sierra Manifold Riser Spacer Kit - Mercruiser - S18-1908K. Replaces: 807476A6, 93320A2, 93320A3, 93320A5, 93320A6, 93320A13 Alpha/Bravo/Gen+/GenIV GM Small Block V-8 305, 350, 4.3L, 454, 5.0, 5.7L, 502, 7.4L, 8.2L, (3” Riser Kit) Complete...
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Sierra Marine
Sierra Manifold Spacer 6" - Mercruiser - S18-1985
Sierra Manifold Spacer 6" - Mercruiser - S18-1985. Replaces: Mercruiser 93322 Marine Power 612011 Barr MC-20-93322A3 For: 229 and 262 V6, 305-350 Small Block V8, 454 Big Block V8 Used with: Manifold: S18-1952-1, S18-1957-2,...
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Sierra Marine
Sierra Water Shutter - Mercruiser - S18-2732
Sierra Water Shutter - Mercruiser - S18-2732. Replaces: 807166A3 Package of 2 Part Number SRA-S18-2732
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Sierra Marine
Sierra Water Shutter - Mercruiser - S18-2733
Sierra Water Shutter - Mercruiser - S18-2733. Replaces: 92802, 99370A2 Part Number SRA-S18-2733
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Sierra Marine
Sierra Hose Barb - Mercruiser
Sierra Hose Barb - Mercruiser. Replaces: 22-807155 3/4” - 14 NPT x 1” Hose Corrosion-Resistant Brass Fitting Part Number SRA-S18-4461
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Sierra Marine
Sierra Drain Plug - Mercruiser - S18-4226
Sierra Drain Plug - Mercruiser - S18-4226. Replaces: 22-806608A1, 22-806608A02 Part Number SRA-S18-4226
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Sierra Marine
Sierra Drain Elbow Assembly - Mercruiser - S18-4224
Sierra Drain Elbow Assembly - Mercruiser - S18-4224. Replaces: 22-806926A1, 22-862210A01 3/4” NPT Part Number SRA-S18-4224
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Sierra Marine
Sierra Outdrive Gasket Set - Mercruiser - S18-2614
Sierra Outdrive Gasket Set - Mercruiser - S18-2614. 1967-1982 Replaces: 27-64818A1, 27-64818T4, 27-64818Q4, 27-64818A20, 27-64818A4, 27-64818, 27-45821 Contains: Sierra CodeDescriptionO.E #Qty S18-2820 Drive Shaft Housing to Bell Housing...
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Sierra Marine
Sierra Drain Elbow - Mercruiser
Sierra Drain Elbow - Mercruiser. Replaces: 22-806926, 22-862210 Part Number SRA-S18-4227
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Sierra Marine
Sierra Outdrive Gasket Set - Mercruiser - S18-2619-1
Sierra Outdrive Gasket Set - Mercruiser - S18-2619-1. Old Style Replaces: 27-64818A3, 27-94996Q2, 27-94996T2, 27-94996, 27-94996A1, 27-94996A2, 27-94996A20, 27-64818A2, 27-64818A3 For: R, MR, Alpha I, Alpha Gen II (1983-Newer) Contains: Sierra...
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Sierra Marine
Sierra Outdrive Gasket Set - Mercruiser - S18-2615
Sierra Outdrive Gasket Set - Mercruiser - S18-2615. (Bravo Unit) Replaces: 16755, 16755A1, 16755Q1, 16755T1 For: All Bravo Contains: Sierra CodeDescriptionO.E...
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Sierra Marine
Sierra Outdrive Gasket Set - Mercruiser - S18-2617
Sierra Outdrive Gasket Set - Mercruiser - S18-2617. Old Style Replaces: 27-35996, 27-35996A1 For: IA/IB/IC and EZ Shift (1964-1966) Contains: Sierra CodeDescriptionO.E # S18-2556 Drive Shaft Housing to Bell Housing...
Motors & Parts - Inboard & Outboard
Inboard and outboard motors are the two main types of boat motors.
Inboard motors are located inside the hull of the boat. They are typically more powerful than outboard motors, and they can provide a smoother ride. However, they are also more expensive and more difficult to maintain.
The main parts of an inboard motor are:
- The engine: This is the heart of the motor, and it is responsible for generating power.
- The transmission: This transfers power from the engine to the propeller.
- The propeller: This is what actually moves the boat through the water.
Outboard motors are located outside of the hull of the boat. They are typically less powerful than inboard motors, but they are also less expensive and easier to maintain.
The main parts of an outboard motor are:
- The powerhead: This is the engine and transmission of the motor.
- The midsection: This houses the controls and the fuel tank.
- The lower unit: This contains the propeller and the gearcase.
In addition to the main parts, there are a number of other parts that are used in both inboard and outboard motors. These include:
- The fuel system: This delivers fuel to the engine.
- The cooling system: This keeps the engine cool.
- The electrical system: This provides power to the engine and the other components of the boat.
The parts of a boat motor can be quite complex, but they are all essential for the operation of the boat. By understanding the different parts of a boat motor, you can better understand how your boat works and how to maintain it properly.
Here are some of the most common parts of an inboard or outboard motor:
- Engine: The engine is the heart of the motor, and it is responsible for generating power.
- Propeller: The propeller is what actually moves the boat through the water.
- Gearbox: The gearbox transfers power from the engine to the propeller.
- Fuel system: The fuel system delivers fuel to the engine.
- Cooling system: The cooling system keeps the engine cool.
- Electrical system: The electrical system provides power to the engine and the other components of the boat.
These are just some of the most common parts of an inboard or outboard motor. There are many other parts that can be found in these motors, depending on the make and model of the motor.