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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 - S18-6844
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 - S18-6841
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 - S18-5965
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 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...
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Sierra Marine
Sierra Rewind Spring - Johnson/Evinrude - Replaces - 395460, 307573
Sierra Rewind Spring - Johnson/Evinrude. Replaces - 395460, 307573 HPYear 3 1954-68 5.5 1954-68 7...
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Sierra Marine
Sierra Rewind Spring - Johnson/Evinrude - Replaces - 323653, 338534
Sierra Rewind Spring - Johnson/Evinrude. Replaces - 323653, 338534 Note - this is a special order item. Please allow 8 weeks for delivery. HPYear 9.9 1980-92 10 1980-2 12 1980-92 15 1979-92 Part...
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Sierra Marine
Sierra Prop Nut Kit - Johnson/Evinrude - Replaces - 175266
Sierra Prop Nut Kit - Johnson/Evinrude. Replaces - 175266 Contains: Sierra CodeDescriptionO.E # S18-3708-1 Prop Nut / Keeper 398042 S18-3741 Cotter Pin 309955 S18-4231 Prop Spacer 320570 Part...
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Sierra Marine
Sierra Prop Nut Kit - Johnson/Evinrude - Replaces - 5005034
Sierra Prop Nut Kit - Johnson/Evinrude. Replaces - 5005034 Fits: 40-130 (2001 & Up) Part Number SRA-S18-3753
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Sierra Marine
Sierra Thrust Washer - Johnson/Evinrude - Replaces - 333592
Sierra Thrust Washer - Johnson/Evinrude. Replaces - 333592 Part Number SRA-S18-4223
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Sierra Marine
Sierra Prop Spacer - Johnson/Evinrude - Replaces - 320570
Sierra Prop Spacer - Johnson/Evinrude. Replaces - 320570 Package of 5 Part Number SRA-S18-4231
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Sierra Marine
Sierra Lower Unit Seal Kit - Johnson/Evinrude - Replaces - 396352
Sierra Lower Unit Seal Kit - Johnson/Evinrude. Replaces: 396352 Contains: Sierra CodeDescriptionO.E #Qty S18-0882 Shift Rod Gasket 304764 1 S18-0108 Lower Gearcase Gasket 324449 1 S18-3360 Impeller Housing...
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Sierra Marine
Sierra Lower Unit Seal Kit - Johnson/Evinrude - Replaces - 396350
Sierra Lower Unit Seal Kit - Johnson/Evinrude. Replaces: 396350 Contains: Sierra CodeDescriptionO.E #Qty S18-2025 Oil Seal 318971 1 S18-2028 Oil Seal 321480 2 S18-2029 Oil...
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Sierra Marine
Sierra Lower Unit Seal Kit - Johnson/Evinrude - S18-2684
Sierra Lower Unit Seal Kit - Johnson/Evinrude - S18-2684 Contains: Sierra CodeDescriptionO.E #Qty S18-0882 Shift Rod Gasket 304764 1 S18-2032 Oil...
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Sierra Marine
Sierra Lower Unit Seal Kit - Johnson/Evinrude - S18-2691
Sierra Lower Unit Seal Kit - Johnson/Evinrude - S18-2691. Contains: Sierra CodeDescriptionO.E #Qty S18-2874 Solenoid Cover...
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.