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Sierra Marine
Sierra Temperature Sensor - Mercruiser - S18-7600
Sierra Temperature Sensor - Mercruiser - S18-7600. Replaces: 805218T Part Number SRA-S18-7600
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Sierra Marine
Sierra Map Sensor - Mercruiser - S18-7551
Sierra Map Sensor - Mercruiser - S18-7551. Replaces: 861425 Fits: Mercury Scorpion, Black Scorpion 1998-2010 Part Number SRA-S18-7551
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Sierra Marine
Sierra Fuel Pressure Regulator - Mercruiser - S18-7663
Sierra Fuel Pressure Regulator - Mercruiser - S18-7663. Replaces: 802630T01, 802630001, 802630T, 802630, 8M0069803 7.4L MPI (L29) Part Number SRA-S18-7663
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Sierra Marine
Sierra Knock Sensor - Mercruiser - S18-7554
Sierra Knock Sensor - Mercruiser - S18-7554. Replaces: 878187 Fits: Mercury 5.7L MAG 1994-2010 Part Number SRA-S18-7554
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Sierra Marine
Sierra Crankshaft Sensor - Mercruiser - S18-7556
Sierra Crankshaft Sensor - Mercruiser - S18-7556. Replaces: 864297001 Fits: Mercury 5.0L, 6.2L 1998-2010 Part Number SRA-S18-7556
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5967
Sierra Alternator - Mercruiser - S18-5967. Serpentine Pulley, 55 Amp Replaces: 807652T SAE J1171 Part Number SRA-S18-5967
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5983
Sierra Alternator - Mercruiser - S18-5983. Replaces: 862030T, SAE J1171 7SI/70 amp, Hinge Mount, Single Groove Pulley Part Number SRA-S18-5983
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Sierra Marine
Sierra Alternator - Mercruiser - S18-6293
Sierra Alternator - Mercruiser - S18-6293. Replaces: 862031T, 862031T1, SAE J1171 7SI/70 amp, Hinge Mount, Serpentine Pulley 2.44” Diameter Part Number SRA-S18-6293
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Sierra Marine
Sierra Alternator - Mercruiser - S18-6844
Sierra Alternator - Mercruiser - S18-6844. Replaces: Mercruiser 834832, T2, 857006A3, Denso 101211-3460 Part Number SRA-S18-6844
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Sierra Marine
Sierra Alternator - Mercruiser - S18-6298
Sierra Alternator - Mercruiser - S18-6298. Replaces: 863077T, SAE J1171 7SI/70 amp, Hinge Mount, Serpentine Pulley 1.97” Diameter Part Number SRA-S18-6298
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Sierra Marine
Sierra Alternator - Mercruiser - S18-6841
Sierra Alternator - Mercruiser - S18-6841. Replaces: 56045, 59755, 69729, 78403A2, 78403A1, 78477, 90794 For: 37-63A Marine Applications Part Number SRA-S18-6841
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5966
Sierra Alternator - Mercruiser - S18-5966. Replaces: 817119A4, 12449A1, 98555A1, 92497, 817119A1, 12449A1, 12449 SAE J1171 Part Number SRA-S18-5966
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5965
Sierra Alternator - Mercruiser - S18-5965. Replaces: 817119A1, 817119A4, 805884T, 98555A1, 92497A3, 92497, 12449A1, 12449 SAE J1171 Part Number SRA-S18-5965
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5960
Sierra Alternator - Mercruiser - S18-5960. Serpentine Pulley, 65 Amp Replaces: 807653T, SAE J1171 Part Number SRA-S18-5960
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5945
Sierra Alternator - Mercruiser - S18-5945. (3-Wire) (No Core) (68 AMP), SAE J1171 Replaces Mando, Motorola and original equipment Delco. Uses same electrical connections and mounting method. Equipped with fan and serpentine drive pulley. SAE...
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Sierra Marine
Sierra Alternator - Mercruiser - S18-5946
Sierra Alternator - Mercruiser - S18-5946. (1-Wire) (No Core) (68 AMP) Single wire connection fits Mercruiser and many other applications. Equipped with fan and serpentine drive pulley. SAE J1171 Part Number SRA-S18-5946
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Sierra Marine
Sierra Starter - Mercruiser - S18-6946
Sierra Starter - Mercruiser - S18-6946. Replaces: 50-8m8021116 Fits: High Performance 11 Tooth Starter for 6.2L & 8.9L Scorpion HO applications Part Number SRA-S18-6946
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Sierra Marine
Sierra Starter - Mercruiser - S18-6870
Sierra Starter - Mercruiser - S18-6870. Replaces: Mercury 50-805833, T Fits: D7.3L D-tronic 260 LD, 300 1999 year Part Number SRA-S18-6870
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Sierra Marine
Sierra Starter - Mercruiser - S18-5903
Sierra Starter - Mercruiser - S18-5903. (No Core) (Clockwise) Bottom mount, two bolt pattern for standard rotation Ford engines. Replaces: 50-69865A1, 50-12872, 50-56886 Replacement Solenoid: S18-5801 Part Number SRA-S18-5903
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Sierra Marine
Sierra Starter - Mercruiser - S18-5919
Sierra Starter - Mercruiser - S18-5919. Permanent magnet I/O starter, 11 Tooth Replaces: 50-806963A4, 50-806965A2, 50-806965A4 Includes one S18-8402 bolt and one S18-8404 bolt Fits: Chevy Engines with 12 3/4” flywheels Straight across bolt...
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.