OMC Stringer stern drive upper gear case for years 1968 to 1977 with both press on and bolt on ball gears.
Case may come with or with out true coarse steering installed.
400 Series OMC stern drive lower gear case exploded view drawing for years 1982 to 1986 with 3-1/4 inch smaller hub.
Drawing includes the following parts: Drive shaft, gearcase, propeller shaft, drive shaft, bearing carriers and bearing retainers.
OMC stern drive years 1982 thru 1986. Lower unit components drawings are divided into 3 section.
1st drawing part numbers 1 to 22, second drawing part numbers 23 to 48 and third drawing part numbers 49 to 72.|
Layout show GLM Marine P/N, photo and OEM numbers of each component listed in gearcase.
Common replacement components
Seized bearings from low oil levels or water in the oil. Propeller impact damage resulting in broken gears
and bent propeller shafts. Old cracked seal that are 15 plus years old.
800 lower parts
800 series for the following years: 1982, 1983, 1984, 1985 and 1986 lower unit gear-case. Large hub, drive shaft, drive shaft
bearing, shifter rod and prop shaft installed.
1986 - 1989 3 liter and 1987 - 1990 2.3 liter 4 cylinder with 3-3/4 inch small hub lower gear-case component tech drawing
Common replacement components are:
Propeller impact damage resulting
in broken gears and bent propeller shafts.
Old cracked seal that are 15 plus
How to repair video series for OMC outdrives show exploded view OMC cobra parts drawing. However we have 25
plus repair videos listed at time of listing. Click on you-tube icon to and select videos to see actual repairs, tools and
Contact the order desk if having problem with your repair as we have a no charge tech service
representative who will help you if required. In most video,s tools and repair parts are listed by GLM part number.
4.250 inch drawing 1985-1995
1986 to 1993 V6, V8 and 1990 to 1993 large hub 4-1/4 inch lower unit 3.0 liter 4 cylinder engine