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Sierra Marine
Sierra Exhaust Manifold Gasket Set - Mercruiser - S18-4349
Sierra Exhaust Manifold Gasket Set - Mercruiser - S18-4349 For: GM 200, 228, 230, 260, 898 (5.0 & 5.7L) Contains: Sierra CodeDescriptionO.E #Qty S18-2949 Exhaust Manifold Gasket 27-33395 2 S18-0897 Exhaust Elbow Mounting...
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Sierra Marine
Sierra Engine Coupler - Mercruiser - S18-2172
Sierra Engine Coupler - Mercruiser - S18-2172. Replaces: 14505A2 Used when replacing V6 or V8 2 piece rear main seal with 3-1/2” crankshaft bolt pattern to a newer 1 piece rear main seal engine with 3” bolt pattern Part...
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Sierra Marine
Sierra Engine Coupler - Mercruiser - S18-2413
Sierra Engine Coupler - Mercruiser - S18-2413. Replaces: 69354A1, 69354A2 For: 470, 485 (224 cu. in.) S/N 4208730-6218036 (1976-1982) Part Number SRA-S18-2413
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Sierra Marine
Sierra Head Gasket - Mercruiser - S18-2946
Sierra Head Gasket - Mercruiser - S18-2946. Replaces: 3853336, 908611 Fits: GM 181 (3.0L) CID Eng. Part Number SRA-S18-2946
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3647
Sierra Thermostat Kit - Mercruiser - S18-3647 Replaces: 807252Q5, 807252T8 Contains: Sierra CodeDescriptionO.E # S18-3649 Thermostat 807252-2 S18-2844 Thermostat Cover Gasket 27-48818-1 S18-2552 Thermostat Cover...
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3668
Sierra Thermostat Kit - Mercruiser - S18-3668. Replaces: 807252T4, 807252Q4 Contains: Sierra CodeDescriptionO.E # S18-2552 Thermostat Cover Gasket 27-33179-2 S18-2553 Thermostat Cover Gasket 27-47510 S18-2554 Thermostat Cover...
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3648
Sierra Thermostat Kit - Mercruiser - S18-3648. 160° Part Number SRA-S18-3648
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3646
Sierra Thermostat Kit - Mercruiser - S18-3646. Replaces: 807252Q3, 807252T6 Contains: Sierra CodeDescriptionO.E # S18-3551 Thermostat 59137 S18-2917 Thermostat Housing Gasket 27-53045-1, 27-33918 S18-2844 Thermostat Cover...
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Sierra Marine
Sierra Fuel Pressure Regulator - Mercruiser - S18-33211
Sierra Fuel Pressure Regulator - Mercruiser - S18-33211. Replaces: 892681 Fits: Mercruiser 8.1L, 496 Mag HO, 502 Mag MPI 375-400 HP. Part Number SRA-S18-33211
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Sierra Marine
Sierra Commutator End Plate - Mercruiser - S18-6254
Sierra Commutator End Plate - Mercruiser - S18-6254. Replaces: 392-2940 For: Use with Prestolite Pumps (Mercury #’s 79271A4 and 88475A5) Part Number SRA-S18-6254
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Sierra Marine
Sierra Composite Pulley - Mercruiser - S18-6457
Sierra Composite Pulley - Mercruiser - S18-6457. Replaces: 807757T 3” OD Serpentine for 13/16” width belt For: Late model GM V6 & V8 engines Part Number SRA-S18-6457
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Sierra Marine
Sierra Thermostat Service Kit - Mercruiser - S18-1989K
Sierra Thermostat Service Kit - Mercruiser - S18-1989K. Service Kit for S18-1989 Thermostat Housing. Part Number SRA-S18-1989K
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3649
Sierra Thermostat - Mercruiser - S18-3649. Replaces: 8072522, 807252T2, 8052732, 8M0091470 160° Part Number SRA-S18-3649
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-43015
Sierra Thermostat - Mercruiser - S18-43015. Replaces: Mercury 864493 Fits: Mercruiser MCM 4.3L MPI, 5.0L MPI and MX6.2L w/dry joint exhaust and closed cooling Part Number SRA-S18-43015
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3551
Sierra Thermostat - Mercruiser - S18-3551. Replaces: 32728, 35884, 59137, 59137A1, 8072521, 8072531, 807252T1, 8M0089715 142° Part Number SRA-S18-3551
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3555
Sierra Thermostat - Mercruiser - S18-3555. Replaces: 99155T1 Part Number SRA-S18-3555
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3550
Sierra Thermostat - Mercruiser - S18-3550. Replaces: 59078, 59078A1 140° Part Number SRA-S18-3550
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Sierra Marine
Sierra Impeller Repair Kit - Mercruiser - S18-3237
Sierra Impeller Repair Kit - Mercruiser - S18-3237. For: Bravo I, II, III (1988 & up) B664190 & up Fits Bravo drives with 1 piece housing Contains: Sierra CodeDescriptionO.E #Qty S18-3087 Impeller 47-59362 1 S18-3350 Wear...
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Sierra Marine
Sierra Impeller - Mercruiser - S18-3087
Sierra Impeller - Mercruiser - S18-3087. Replaces: 47-59362, 47-59362T Part Number SRA-S18-3087
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1956-3
Sierra Manifold - Mercruiser - S18-1956-3. Supplied with Mounting Package Replaces: Mercruiser 860235A04, 99798A3, 99798A9, 99798A16, 99798A18, 806867A8 Marine Power 600333 Barr MC 1 99798 Fits: 2.5 & 3.0L (1983-89) Part...
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.