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Sierra Marine
Sierra Exhaust Tube - Mercruiser - S18-2761
Sierra Exhaust Tube - Mercruiser - S18-2761. 3” I.D. Replaces: 32-90949, 32-90949T Part Number SRA-S18-2761
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Sierra Marine
Sierra Exhaust Tube - Mercruiser - S18-2760
Sierra Exhaust Tube - Mercruiser - S18-2760. Replaces: 78458, 78458A1 (Includes S18-7314 Clamp) For: #1, Bravo I, II, III Part Number SRA-S18-2760
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Sierra Marine
Sierra Exhaust Bellows Kit - Mercruiser - S18-2758
Sierra Exhaust Bellows Kit - Mercruiser - S18-2758. Replaces: 875848, 876631 AQ200, 250, 270, 275, 280, 280DP, 290, 290DP Part Number SRA-S18-2758
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Sierra Marine
Sierra Exhaust Boot - Mercruiser - S18-2746
Sierra Exhaust Boot - Mercruiser - S18-2746. Replaces: 32-14358, 32-14358T, 31-14358001 (4” Lower Tube) Part Number SRA-S18-2746
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Sierra Marine
Sierra Exhaust Boot - Mercruiser - S18-2748
Sierra Exhaust Boot - Mercruiser - S18-2748. Replaces: 32-44348, 32-44348T, 31-44348001 (4” Upper Tube) Part Number SRA-S18-2748
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Sierra Marine
Sierra U-Joint - Mercruiser - S18-1711
Sierra U-Joint - Mercruiser - S18-1711. Replaces: 862132, 862132T For: Bravo One, Two, & Three (All Ratios), Bravo One X/Two X, Three X (All Ratios), Bravo One XR/ XZ(All Ratios), Bravo One XR Sportmaster (All Ratios) & Integrated...
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Sierra Marine
Sierra U-Joint - Mercruiser - S18-2097
Sierra U-Joint - Mercruiser - S18-2097. Permalube Replaces: 8055361, 805536A1, 805536A2 For: Generation II F680000 & UP Part Number SRA-S18-2097
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Sierra Marine
Sierra U-Joint - Mercruiser - S18-2104
Sierra U-Joint - Mercruiser - S18-2104. Heavy Duty Replaces: 75832, 75832A2, 75832T, 758321, 75832T1, 75832A1, 75832A3, 58749, 41431, 36312 Includes both straight and 90° grease fitting. For: all #1 and ALPHA I Units S/N 1684188-B418818. Also...
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Sierra Marine
Sierra U-Joint - Mercruiser - S18-2174
Sierra U-Joint - Mercruiser - S18-2174. Heavy Duty Replaces: 915717, 3850812 Fits OMC Cobra and King Cobra Drives (1990 & ABOVE) Includes straight grease fitting and 90° fitting. Part Number SRA-S18-2174
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Sierra Marine
Sierra U-Joint Assembly - Mercruiser - S18-6406
Sierra U-Joint Assembly - Mercruiser - S18-6406. Replaces: 865496A01, 865493A01, 865510T, 865496A01, 865511T GKN new style with external clips. Fits: Alpha I Gen II 0L949779 & UP, Bravo 0M111208 & UP For: Mercruiser Vazer Part...
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Sierra Marine
Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-2100K
Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-2100K. Replaces: 30-60794A2, 30-60794A4, 30-879194A02 Greasable. Contains (1) each of S18-2094 & S18-2100 Fits: 1, R, MR and Alpha (1974-97) Part Number SRA-S18-2100K
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Sierra Marine
Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-21005K
Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-21005K. Replaces: 30-862540A3, 30-862540T1, 30-862540A04, 30-879194A01 Greasable. Contains (1) each of S18-2094 & S18-21005 Fits: Gen II (1998-Up) and all Bravo Part...
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Sierra Marine
Sierra Gimbal Bearing - Mercruiser - S18-2101
Sierra Gimbal Bearing - Mercruiser - S18-2101. Replaces: 30-36418, 30-36056, 36147 Greasable. (Link-Belt) Part Number SRA-S18-2101
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Sierra Marine
Sierra Gimbal Bearing - Mercruiser - S18-21001
Sierra Gimbal Bearing - Mercruiser - S18-21001. Replaces: 30-60794A2, 30-60794A4, 30-879194A02 Non Greasable Fits: MC-1, R, MR and Alpha(1974-97), Gen II(1991-97), Bravo I/II/III (1988-95) Part Number SRA-S18-21001
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Sierra Marine
Sierra Gimbal Bearing - Mercruiser - S18-21005
Sierra Gimbal Bearing - Mercruiser - S18-21005. Replaces: 30-862540A3, 30-862540T1, 30-862540A04, 30-879194A01. Greasable Fits: All Bravos, Alpha One Gen II (1998-up) Part Number SRA-S18-21005
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Sierra Marine
Sierra Gimbal Bearing - Mercruiser - S18-21006
Sierra Gimbal Bearing - Mercruiser - S18-21006. Non Greasable Replaces: 30-862540T1, 30-862540A3, 30-862540A04, 30-879194A01 Fits: Gen II (1998-10), Bravo I/II/III & X/XR/XZ (1996-10) Part Number SRA-S18-21006
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Sierra Marine
Sierra Hinge Pin - Mercruiser - S18-1705
Sierra Hinge Pin - Mercruiser - S18-1705. Replaces: 77123, 77123A1, 65547 (with grease port). For gimbal housing Fits: Alpha, Alpha Gen II S/N 0M815638 & Lower Part Number SRA-S18-1705
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Sierra Marine
Sierra Voltage Regulator - Mercruiser - S18-5740
Sierra Voltage Regulator - Mercruiser - S18-5740. Replaces: 42785 Part Number SRA-S18-5740
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Sierra Marine
Sierra Distribution Cap - Mercruiser - S18-5246
Sierra Rotor - Mercruiser - S18-5246. For: Delco HVS V-6 Distributors Part Number SRA-S18-5246
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Sierra Marine
Sierra Rotor - Mercruiser - S18-5406
Sierra Rotor - Mercruiser - S18-5406 Replaces: 811636, 811636 1, 898253011 Use with S18-5361 Distributor Cap 3.0L LX Part Number SRA-S18-5406
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.