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Sierra Marine
Sierra Thermostat Housing - Mercruiser - S18-1977-1
Sierra Thermostat Housing - Mercruiser - S18-1977-1. Replaces: 47441, 47441A1 Fits: 225, GM 260, 228, 898/198, 185R, 898R, 228R, 2GR Part Number SRA-S18-1977-1
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3652
Sierra Thermostat Kit - Mercruiser - S18-3652. Contains: Sierra CodeDescriptionO.E # S18-2555 Thermostat Cover Gasket 27-89656-1 S18-2843 Thermostat Cover Gasket 27-74830 S18-3552 Thermostat 76270 Part...
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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 - S18-3667
Sierra Thermostat Kit - Mercruiser - S18-3667. Contains: Sierra CodeDescriptionO.E # S18-2555 Thermostat Cover Gasket 27-89656-1 S18-3555 Thermostat 99155A1 Part Number SRA-S18-3667
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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 - S18-3644
Sierra Thermostat Kit - Mercruiser - S18-3644. Contains: Sierra CodeDescriptionO.E # S18-3649 Thermostat 160° 807252T2 S18-2553 Thermostat Cover Gasket 27-47510 S18-2917 Thermostat Cover...
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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 - S18-33207
Sierra Fuel Pressure Regulator - Mercruiser - S18-33207. Replaces: 860349A1 Fits: MCM/MIE 7.4L/LX MPI, 4545 Mag MPI, 502 Mag MPI, MIE 8.2L MPI. Mounts on Fuel Cooler. Part Number SRA-S18-33207
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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 Thermostat Kit - Mercruiser - S18-3650
Sierra Thermostat Kit - Mercruiser - S18-3650. Replaces: 59078T3 Contains: Sierra CodeDescriptionO.E # S18-2831 Thermostat Gasket 27-47590-1 S18-3550 Thermostat 59078 Part Number SRA-S18-3650
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Sierra Marine
Sierra Thermostat Kit - Mercruiser - S18-3651
Sierra Thermostat Kit - Mercruiser - S18-3651. Replaces: 59078T3 Contains: Sierra CodeDescriptionO.E # S18-2554 Thermostat Cover Gasket 27-90556 S18-2553 Thermostat Cover Gasket 27-47510 S18-2834 Thermostat Cover...
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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 Starter - Mercruiser - S18-5910
Sierra Starter - Mercruiser -S18-5910. (Heavy-Duty) (No Core) (Clockwise) (9 tooth) Small block V-6 & V-8 GM engine with 14 1/4” flywheel and bottom mount, offset bolt pattern. For standard rotation engines. Replaces: 50-12177A2,...
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Sierra Marine
Sierra Starter - Mercruiser - S18-5911
Sierra Starter - Mercruiser -S18-5911. (Heavy-Duty) (No Core) (Clockwise) (9 tooth) For GM engines, bottom mount straight across bolt pattern. Standard rotation. Replaces: 50-76965A4, 50-99417A2, 50-99419A3, 50-17251A3 Replacement Solenoid:...
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Sierra Marine
Sierra Starter - Mercruiser - S18-5923
Sierra Starter - Mercruiser - S18-5923. PMGR Replacement for S18-5903; 302CID, 351CID Ford Engines Part Number SRA-S18-5923
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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 - S18-43017
Sierra Thermostat - Mercruiser - S18-43017. Replaces: Mercury 863358T, 8M0074922, 8M0076464 Fits: Mercruiser 496 Mag & HO, 8.1L MIE & HO Part Number SRA-S18-43017
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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
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.