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Alpha One Sterndrive Parts

Click HERE for online parts images & ordering.

Mercruiser produced several models of sterndrives before the Alpha One was introduced.
These include the common "R" sterndrive, 888 sterndrive, 898 sterndrive, I and MR as well as others.

The Alpha One was an improved design.
Changes included cutting the lower gears at an opposite angle and changing the bearing load design on the lower drivehshaft. This allowed for a much more stable pinion gear clearance for added strength.

Before ordering parts for your Alpha One drive, try to identify your unit.
We use such clues as: serial number, model year, color, number of hoses to each trim cylinder, reverse lock system, whether there is a pre-load pin on top of the lower driveshaft, number of splines on lower driveshaft, material of water pump base, whether there is a nut holding the small bearing on to the top shaft, appearence of top cap and more.

Rebuilding or Repairing a sterndrive can be a difficult endeavor, however, we have numerous customers who successfully complete all kinds of repairs at a great savings.

Most customers start by buying a Service Manual.
Manuals are used on a regular basis even by our most experienced Mercruiser Techs. The manuals show all the procedures and they have a list of the special tools required to complete the job if required. It's a great idea to have a manual even if you don't perform the repair yourself because you can get a good idea as to what your tech should be doing.

sterndrives.com can help you select the parts you need.
We have years of experience in accurate parts selection and options and we will be able to narrow down your request.
Simply fill out a Parts Request Email below:

Try to be as complete and specific as possible.
Always include your engine and/or sterndrive serial number whenever possible.
We answer most requests withing an hour or less during normal business hours.
Otherwise, we will respond first thing the next morning.

Information EMAIL

Mercruiser Sterndrive Parts.
Pre-Alpha, R, MR and MC1 Parts
Alpha One Parts
Seal Kits
Alpha One Gimbal (Transom) Parts and Kits
Alpha Gen II Parts
Alpha Gen II Gimbal (Transom) Parts and Kits
Bravo One Parts
Bravo Two Parts
Bravo Three Parts
Bravo Gimbal (Transom) Parts and Kits
TR and TRS Parts
Transom Seal Kits
Gimbal Bearings
Shift Cable Kits
Gear Kits
Shift Interuptor Switch Kits
Anodes and Zinc Kits
Water Pump Kits
Power Trim Pump Kits and Trim System Parts
Decal Sets
Sterndrive Special Tools
Mercruiser shop Manuals
Propellers
Remote Controls
Gauges
Trim Sender Switches
Trim Cylinder Assemblies
Mercruiser Engine Parts
Filters and Filter Kits
Tuneup Kits
Carburetor Rebuild Kits
Carburetors
Raw Water Pump Kits
Circulation Water Pumps
Spark Plugs
Spark Plug Wire Kits
Gasket Sets
Exhaust Manifolds
Exhaust Elbows
Exhaust Riser Kits
Exhaust Water Shutter Kits
Ignition Modules and Ignition Coils
Cooling System Parts
Starter Motors
Solenoids
Alternators and Charging Systems
Belts and Belt-Pulley Kits
Drive Couplers
Fuel Pumps (Mechanical and Electric)
Wire Harnesses
Gauges and Instruments
Partial Engine Assemblies
Grease, Lubricants and Adhesives

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