OEM Service Parts for MerCruiser Alpha One Gen 2
✅ Verified Fit for Your Engine
Year Range: 1991 - Present
Model: MerCruiser Alpha One Gen 2
Serial Range: 0D469859 Thru 0K999999 & 0L100040 +
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Transom Assembly
OEM MerCruiser transom service kit 30-803099T1
Years: (1991 to present)
Sterndrive transom seal repair kit 803099T1 is for MerCruiser Alpha One, Gen 2 sterndrives with exhaust bellows. Kit contains replacement hoses, seals, gaskets, bellows and hose clamps to seal opening in the transom for sterndrives. See your owner's manual or service manual for specific applications and replacement instructions.
Includes outdrive gasket, o-ring seals, bellows, hose clamps, gimbal bearing, hose clamps and water hose for full transom service
See your owner's manual or service manual for specific applications and replacement instructions
Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive
OEM MerCruiser lower shift cable assembly 8M0176524
Lower shift cable kit is built for long life and maximum performance in all weather conditions to below 0°F. They employ layered technology structure to create a smooth operating, durable control cable. Remove stuck, stiff or damaged cable and replace the new cable in reverse order. Kit contains all lower shift cable components. Easy to replace with common tools.
Fit Application:
MerCruiser Alpha One Gen II
MerCruiser Alpha One Gen I
MerCruiser MC‑I, R, & MR (1978 and newer)
OEM MerCruiser Drive/Bell Housing Gasket 27-94996Q2
This kit contains the six gaskets for installation of the outdrive to bell housing of MerCruiser Alpha One (Gen I & II), R, and MR (serial No. 6225577 and above, 1983 and newer) drives.
Complete 6-piece installation gasket kit for MerCruiser drives.
Made from durable gasket, seal and o-ring materials for long service life
Ensures proper mating and protection of metal surfaces
Replace all the gaskets to ensure seal and fit when replacing the bell housing
Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your MerCruiser drive
OEM Quicksilver bellow adhesive 92-86166Q1 for use on all MerCruiser sterndrives to securely seal universal and exhaust bellows.
Resistant to oil, grease, gasoline and water
Size: 1.5 oz
OEM Mercury / MerCruiser exhaust bellow 8M0124227Quicksilver
Bell housing exhaust bellows 8M0123227 is for use on MerCruiser MC-I, MR, Alpha One, Alpha One Gen II, Vazer, Bravo and Blackhawk (1963 and newer) sterndrives. The bellows is made of flexible, durable rubber for a long service life. Includes stainless steel hose clamps at each end. Easy to install with common tools. Periodic maintenance and service helps protect your investment in your engine and your boating pleasure. See your owner's manual or service manual for specific applications and replacement instructions.
Flexible, durable bellows for use on select MerCruiser sterndrives
Includes stainless steel hose clamps at each end
Easy to install with common tools
Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive
OEM Mercury / MerCruiser shift bellow 74639A2 Quicksilver
Shift cable bellows 74639A2 is for all MerCruiser sterndrives using a drive unit shift cable. The bellows helps keep water from shift cable entry points to protect your drive mechanism. Easy to install using common tools. Kit includes hose clamps to secure both ends of the bellows.
Flexible, ribbed composite bellows to keep water from shift cable entry point
Includes hose clamps for both ends
Easy to install with common tools
OEM Mercury / MerCruiser Gimbal Bearing 30-879194A01
Replacement gimbal bearing is permanently lubricated and a plug for the grease fitting used in prior versions with greaseable bearing. Replacement gimbal bearing for select MerCruiser sterndrives and is precision made to exact tolerances specific to your drive unit. Bearing kit is complete and ready for installation.
Fits Applications:
MerCruiser Alpha One Gen II (1998 and newer)
MerCruiser Bravo One, Two and Three (1996 and newer)
OEM Mercury / MerCruiser Gimbal Bearing 30-879194A02
Replacement gimbal bearing is permanently lubricated and a plug for the grease fitting used in prior versions with greaseable bearing. Replacement gimbal bearing for select MerCruiser sterndrives and is precision made to exact tolerances specific to your drive unit. Bearing kit is complete and ready for installation.
Fits Applications:
MerCruiser Alpha One Gen II (1997 and older)
MerCruiser Bravo One, Two and Three (1996 and older)
MerCruiser MC-I, R, MR, Alpha One Gen I (1991 and older)
OEM MerCruiser Install & Removal Hinge Pin Tool 91-78310
Hinge pin tool 78310 is an essential tool for all MerCruiser sterndrives. Remove and install bellows with ease. See your owner's manual, parts listing or service manual for exact application and installation instructions.
Essential hinge pin installation and removal tool for all MerCruiser sterndrives
Sierra Sleeve Installation Tool 18-9870
Installs the aluminum sleeve in the u-joint bellows for MerCruiser
Bravo, Alpha One Gen II, and Blackhawk drive units.
Replaces Mercury: 91-818162
OEM Mercury / MerCruiser Alpha One Gen II Drive Bellow 816431A1 Quicksilver
Fits MerCruiser Alpha One Gen II drives from 1991-Present with serial numbers 0D469859 & Up. Quicksilver bellows provide proper fitment, easier installation, and high‑grade rubber for long‑lasting service life.
Outdrive
OEM Mercury / MerCruiser water pump repair kit for MerCruiser Alpha One Gen 2 sterndrives, and specific Mercury outboards.
Quicksilver 47-8M0100526 water pump repair kit fits your Mercury F40‑60 4-stroke BigFoot/Command Thrust outboard, 60hp 2‑cycle BigFoot (serial No. 0D000750 and above). It fits 75‑115hp 4-stroke outboards, 150hp EFI 4-stroke outboards and 70‑90hp 2‑cycle outboards (serial No. 0A996142 and above). It fits 100‑125hp 2‑cycle (4-cylinder) models having pump cover screws without insulators. It also fits V‑200/225/250 (3.0L) 2‑cycle outboards. This pump repair kit fits all 4-cylinder and 6-cylinder Verado (with 4.80 dia. torpedo gear cases) outboards. This versatile water pump repair kit also fits MerCruiser Alpha One Gen II drives (serial No. 0D469859 and above). See your owner’s manual for replacement schedule. See your service manual for installation instructions.
Complete 15-piece water pump repair kit
Designed for durability to provide higher flow rates and cooling flow to protect your engine
Kit contains gaskets, o-rings, plates, seals, impeller and key for installation with common tools
Impeller elastomers provide improved flexibility across broad temperature ranges throughout the boating season
Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your older Mercury or Mariner outboard and MerCruiser sterndrive
OEM MerCruiser Alpha One Gen II Aluminum Anode Kit 888756Q03
Includes trim tab anode, trim ram anodes, driveshaft plate anode, prop shaft anode, and all hardware. Designed for use in freshwater or saltwater to help protect your Alpha One Gen II outdrive from the harmful effects of galvanic corrosion. Easy to inspect and easy to replace. Complete attaching hardware kit and instructions included.
Fits MerCruiser Alpha One Gen II 1991+ (S/N 0D469829 and up)
Complete 6-piece aluminum anode kit with attaching hardware for fast and easy replacement
Don’t let corrosion damage your MerCruiser sterndrive or engine
MerCruiser anodes meet or exceed mil-spec MIL-A-24779(SH) providing longer lasting protection than zinc anodes and are for use in fresh or saltwater
Inspect anodes periodically for best protection and replace when seeing signs of corrosion or pitting
OEM Quicksilver gear lube pump 91-8M0072133 outboard or sterndrive 3/8-16 drain plug. Easily replace your lower unit oil with this pump. Fits all quart and literbottles. Fits any outboard or sterndrive with a 3/8‑16 drain plug. Use adapter (included) for gear cases with an M8x1.25 drain plug.
Outboard or sterndrive gear lube pump
Fits all quart and liter bottles
Fits any outboard or sterndrive with a 3/8‑16 drain plug
Use adapter (included) for gear cases with an M8 X 1.25 drain plug
OEM Mercury / MerCruiser 92-8M0222065 Gear Oil SAE 90 (32 oz)
Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard lower units, this high performance SAE 90 gear lube has been extensively tested to ensure impressive protection against corrosion and wear. Specifically formulated to help prevent failures due to water entering the gear housing.
Lower unit gear oil formulated to protect against corrosion and excessive wear
Designed for outboard motor lower unit and sterndrive applications above 75hp
Extreme pressure synthetic additives protect gears from metal to metal contact
SAE 90 viscosity
Manufacturer part number 8M0222065
OEM Mercury / MerCruiser magnetic drain crew & Seal 22-8M0058389
Lower unit gear lube drain and fill hole screw and seal 22-8M0058389 is used with 3/8-16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. This is the magnetic plug screw version, the magnet imbedded in the screw plug attracts any ferrous metal shavings to keep them from suspension in the gear lube and causing damage to gears.
OEM MerCruiser Drive/Bell Housing Gasket 27-94996Q2
This kit contains the six gaskets for installation of the outdrive to bell housing of MerCruiser Alpha One (Gen I & II), R, and MR (serial No. 6225577 and above, 1983 and newer) drives.
Complete 6-piece installation gasket kit for MerCruiser drives.
Made from durable gasket, seal and o-ring materials for long service life
Ensures proper mating and protection of metal surfaces
Replace all the gaskets to ensure seal and fit when replacing the bell housing
Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your MerCruiser drive
OEM Mercury / MerCruiser drain & vent plug gasket yellow 26-8M0204693. Sealing washer is a rubber-coated stainless steel washer engineered for Mercury, Mariner, and MerCruiser gearcase drain and fill applications with 3/8-16 screw holes. OEM sealing washer reduces risks of water intrusion and gearcase damage.
Sold individually (price is per sealing washer).
OEM Mercury / MerCruiser vent or drain screw with seal 79953Q04
Lower unit gear lube vent or drain and fill hole screw with seal 79953Q04 is used with 3/8-16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. This is the non-magnetic plug screw version.
Recommended Service Guide
Bellows:
Inspect annually for cracks, stiffness, or leaks
Replace proactively every 3–5 years depending on use and environment
Gimbal Bearing:
Inspect annually for noise or vibration (especially when turning)
Replace proactively every 3–5 years or immediately if noisy/rough
Anodes:
Inspect annually for heavy pitting
Replace once 50% consumed. Frequency based on storage and environment
Lower Shift Cable:
Inspect annually for stiffness or sheathing wear
Replace proactively every 3–5 years with other drive removal service
Transom Assembly
Gear Oil:
Drain & fill annually or every 100 hours
Replace vent and drain seals with every service
Water Impeller:
Monitor if engine operates in normal temperature
Replace proactively every 2-3 years depending on use and environment
Propeller Shaft:
Inspect and grease propeller shaft annually or every 50 hours
Universal Joint / Shaft Spline:
Inspect and grease annually or every 300 hours
Outdrive
Disclaimer: This is not a full service list, only suggested intervals for common components. Always follow official MerCruiser manuals for complete maintenance