Marine Boats, Motors, Inboards, Outboards, Watercraft Service Repair Manuals

Sterndrive Outdrive Jet Drive Manuals

Do-it-Yourself Service and Repair Manuals for Inboard Outdrives

Manufacturer Brands


Mercury Mercruiser Sterndrive Outdrives

How to Identify what Mercruiser, Alpha or Bravo outdrive you have.

Mercruiser Alpha Outdrives

Alpha Generation 1 model production began in 1983 and ran through 1990. The Serial Number Range for these models ranged from 6225577 Thru 0D469858

Alpha Generation 2 model was introduced in 1991 and is currently still in production. The Alpha Generation 2 models have been broken into several different Serial Number Ranges as follows:

Mercruiser Bravo Outdrives

Bravo 1: With a focus on high speed performance, the Bravo 1 sterndrive is used for single, twin or triple engine applications and can produce speed up over 100 mph for gas engines up to 600 HP. In addition to triple-digit speeds, the exclusive performance torpedo design and dual water pickups allow the Bravo 1 to handle high and low speeds well.

Bravo 2: The Bravo 2 sterndrive is designed for twin engine applications and can power a boat up to 55 mph for gas engines up to 450 HP. With a wide gear case, the Bravo 2 is able to accommodate a propeller up to 20” in diameter that propels a boat on plane faster and improves fuel economy.

Bravo 3: MerCruiser’s Bravo 3 outdrive feature counter-rotating dual propellers that improve propulsion efficiency, speed, acceleration and handling on a boat. The two props are mounted in front of one another and turn in opposite directions eliminating wasted energy from the propeller wash. The Bravo 3 is available in a single or twin engine application and is capable of speeds up to 65 mph for gas engines up to 525 HP.


OMC Stern Drive Outdrives

OMC Stern Drive 1964-1986 Repair Manual

OMC Cobra Stern Drive 1986-1998 Repair Manual


Volvo Outdrives


SEI Outdrives

SEI's outdrives are assembled at their factory in Clearwater, Florida. SEI has been in the stern drive business since 2003. SEI Sterndrive Engineering is the largest supplier of replacement outdrives in the world.