Mercruiser Outdrive Parts Drawings *How to Videos

T.C. Electronics/Marine Home Page

Mercruiser outdrive drive shaft upper/lower unit part

Stern drive upper-lower unit and installation tools

  • Lower gearcase drive shafts for all models including 1970 - 1983 MC-1/R model with spring loaded pre-load pin.
  • Complete universal joint assemblies with yoke.
  • GLM Marine tools that may be required for the removal and installation of related parts.
  • See our application chart to find the correct lower unit shaft for your outdrive

11110 Drive shaft Mercruiser 1970-1983

11110 Mercruiser 1970-1983

P/N 11110 OEM 45-41939F1 Drive shaft with pre-load pin $432.95 MC-1 / R (1970 - 1983)
Serial numbers 2791957 - 6225576

11120

11120

P/N 11120 OEM 45-42634 Drive shaft - does not have preload pin at top $533.95 Mercruiser MR /Alpha 1 (1984 - 1990)
Serial numbers 6225577 - OD469858

11140

11140

P/N 11140 Lower unit drive shaft $529.95 OEM 45-816919, 45-816472, 45-853647, 45-853648
Alpha 1 Generation 2 (1991 - up)
Serial numbers OD469859 and up

28315 Yoke

28315 Yoke

P/N 28315 OEM 814819A3 Yoke drive shaft - upper gearcase $103.95 


9-1/2 inch long
M-1/R/MR/Alpha 1/Gen 2/SS (1971 - up)
Serial numbers 3106717 and up

28050

28050

P/N 28050 OEM 814819A2 Universal joint assembly for upper gearcase $392.95

Includes yoke P/N 28310 OEM 46020-1, 9-1/2 inch long, 2 u-joints, socket, washer and nut.
M-1/R/MR/Alpha 1/Gen 2/SS years 1971 - 1997
Serial numbers 3106717 - OK999999

28070 Universal joint assembly

28070 Universal joint assembly

P/N 28070 OEM 814819A7 U-joint assembly - upper gearcase $501.95

Includes yoke P/N 28312 OEM 853635, drive shaft (9-1/2 inch long), 2 u-joints, socket, washer and nut
Alpha 1 Gen 2 (1998 - up)
Serial numbers OL100040 and up

 

Bearings

21570

21570

P/N 21570 OEM 31-53079A1 Tapered roller bearing $24.95

For MC-1/R (1970 - 1983) serial numbers 2791957 - 6225576 numbers 2791957 - 6225576

21580

21580

P/N 21580 OEM 31-36387A1 Tapered roller bearing $40.95

Mercruiser MC-1/R IA/IB/IC/EZ Shift
(1964 - 1966) serial numbers 168188 - 2065186
120/140 4 cylinder and 160 (1967 - 1969)
serial numbers 2065190 - 2791956
MR/Alpha 1 models (1984 - 1997)
serial numbers 6225577 - OK999999

21584 31-33138A1

21584 31-33138A1

P/N 21584 OEM 31-331138A1 Roller bearing $41.95

For Alpha 1 Gen 2 (1998 - up)
Serial numbers OL100040 and up
 and up

21512 31-86748A1

21512 31-86748A1

P/N 21512 OEM 31-86748A1 Roller bearing $47.95

For Bravo 1 / Bravo 2 (1988 - up)
Serial numbers OB664190 and up

 

Tools

90220 adapter

90220 adapter

P/N 90220 OEM 91-56775T adapter $35.95

For all models

90240

90240

P/N 90240 OEM 91-56775T bearing retainer wrench $37.95

For MR/Alpha 1/Gen 2 models (1984 and up)
Removes and installs the threaded bearing retainer

90100

90100

P/N 90100 OEM 91-17256 Retainer wrench $75.95

For all models including Bravo and Blackhawk
Removes and installs the bearing retainer