OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
Mercruiser Alpha outdrive tools
Alpha One and Generation 2 outdrive / Bell housing repair tools
Updated May 10 2026
- Bell housing repair
- Gimbal bearing and engine alignment tools
- Bearing retainer wrench
- Outdrive pinion bearing and installation and removal
- Adhesive glue and compounds
Mercruiser Alpha 1 and Gen 2 outdrive tools
Lower Unit
Description
OEM number
Price
(USD)
Price (Canadian)
90110 Shift cable
P/N 90110
GLM Marine stern drive gimbal housing tool used to remove and install shift cable on Mercruiser outdrive units.
OEM: 91 – 12037
$33.95
$ 47.89
90360 Bellows expander
P/N 90360
Expander installs the exhaust bellows on the MC-1, R. MR and Alpha 1 outdrive units
OEM 91 – 45497 A1
$129.95
$ 106.89
90200 Hinge Pin
$17.95
$ 29.89
90100 Bearing retainer wrench
P/N 90100
Spanner nut wrench / bearing retainer wrench.
Installs and removes drive shaft bearing retainer on
MC-1/R/MR/Alpha 1/Alpha 1 Gen 2, Blackhawk, and Bravo
OEM: 91 – 17256
$75.95
$ 127.89
90190 Bearing carrier retainer wrench
P/N 90190
Bearing carrier retainer wrench.
Removes and installs bearing carrier retainer nuts on
MC-1/R/MR/Alpha One/Alpha One Gen 2, Bravo and TRS drive units
OEM: 91 – 61069T
$97.95
$ 153.89
90220 Drive shaft adaptor
P/N 90220
Drive shaft adaptor provides a wrench surface to turn the drive shaft on MC-1/R/MR/Alpha 1/Alpha 1 Gen 2 drive units
OEM: 91 – 56775T
$35.95
$ 52.89
90240 Drive shaft bearing retainer wrench
P/N 90240
Drive shaft bearing retainer wrench.
Removes and installs threaded bearing retainer on
MR/Alpha One/Alpha One Gen 2 sterndrives
OEM: 91 – 43506
$37.95
$ 64.89
90480 Drive shaft adaptor
$63.95
$ 102.89
90295 Removal and installation tool
P/N 90295
Pinion bearing removal & installation tool assembly.
Installs & removes pinion bearing on
MC-1/R/MR/Alpha One/Alpha One Gen 2 drive units
Contents: 90260, 90270, 90280, 90290
$85.95
$ 136.89
90260 Pinion bearing installation tool
P/N 90260
Fits the pinion bearing (must remove paper cone)
to avoid crooked seating of the bearing that causes gears to break or make noise
OEM: 91 – 38628T
$39.95
$ 47.89
90270 Driver head
P/N 90270
Driver head removes pinion bearing from MC-1/R/MR/Alpha One/Alpha One Gen 2
OEM: 91 – 36569T
$19.95
$ 15.89
P/N 90280
Puller rod use with No. 90260 & 90270 to install & remove pinion bearing
OEM: 91 – 31229
$28.95
$ 45.89
Keen 75057 Scotch brite polishing wheel
P/N Keen 75057
3″ Scotch brite polishing wheel.
Used for the inside upper gearcase bearing area.
For Alpha One Gen 2 outdrives.
$29.95
$ 44.89
146519 Piston ring installer
P/N 146519
Piston ring installer. Used to line up a bearing during bearing and yoke installation
$29.95
$39.89
90180 Drive gear shimming tool
P/N 90180
Driven gear shimming tool. Measures upper driven gear clearance on MC-1/R/MR/Alpha One/Alpha One Gen 2
OEM: 91 – 60526T
$338.95
$ 340.89
90050 Engine alignment
$120.95
$ 199.89
90170 Drive gear shimming
P/N 90170
shimming.
Measures upper drive gear on
MC-1/R/MR/Alpha One/Alpha One Gen 2
OEM: 91 – 60523
$190.95
$ 342.89
90150 Universal puller plate
$119.95
$ 189.89
90140 Shift shaft bushing
P/N 90140
Removes and installs the shift shaft bushing in the gear case of
MC-1/R/MR/Alpha One drive units
OEM: 91 – 31107T
$22.95
$ 31.89
90160 Pinion gear shim tool
P/N 90160
Measures pinion height of
MC-1/R/MR/Alpha One/Alpha One Gen 2 drive units
OEM: 91 – 56048T
$295.95
$ 430.89
90210 Pinion nut adaptor kit
P/N 90210
Holds pinion nut when removing pinion gear and drive shaft on
MC-1/R/MR/Alpha 1/Alpha 1 Gen 2. Comes with one GLM #90220 drive shaft adaptor.
OEM:91-61067A3
$210.95
$ 240.89
90230 Prop shaft adaptor
P/N 90230
Provides a wrench surface to turn the propeller shaft on
MC-1/R/MR/Alpha One/Alpha One Gen 2, Bravo, and TRS drive units
OEM: 91 – 61077T
$38.95
$ 61.89
90061 Prop wrench
P/N 90061
Prop wrench.
1-1/16 inch
OEM: Mercury
91 – 859046 M4
$13.95
$ 34.89
90062 Prop wrench
P/N 90062
Prop wrench.
15/16 inch
Mercury
91 – 859046 M3
$13.95
$ 21.89
90063 Prop wrench
P/N 90063 Prop wrench.
Provides 13/16 inch
Mercury 91 – 859046 M2
$13.95
$ 21.89
90064 Propeller Wrench
P/N 90064
Prop wrench 9/16 inch
Mercury 91 – 859046 M1
$13.95
$ 21.89
90065 Prop wrench kit
P/N 90065
For Mercury, Mariner. Force V4 & V6 and all Mercruiser. Honda BF75 – BF130
OEM Mercury 91 – 8218871
$19.95
$ 32.89
90066 Prop wrench kit
P/N 90066 Prop wrench kit
15/16 inch
For Mercury, Mariner and Force Outboard 30 – 65 HP
70 HP 3 cylinder 1989 and older. 15 – 25 HP 4 stroke
OEM
Mercury 91 – 856639 A1
$21.95
$ 33.89
90095 Prop and bearing carrier puller
P/N 90095
Prop and bearing carrier puller.
Capacity 5 Tons (min).
For Mercruiser all style bearing carrier and most prop.
$89.95
$ 143.89
Compounds:
Photo
Description
OEM number
Price
(USD)
Price (Canadian)
92 - 861166 Q
Adhesive glue
P/N 92 – 86166 Q1
Bellows glue / adhesive.
Replaces
Sierra 18 – 9031
$19.00
$23.89
609 Loctite
P/N 609
609 Loctite for oil seals. Low viscosity and fast drying. Small tube is enough for one complete stern drive. Adds 3000 psi of holding power.
$9.95
$11.89
680 Loctite
P/N 680
680 Loctite. Highest retaining strength, adds 3700 psi of holding power. It is recommended to use the 680 instead of the 609 if you need to offset seals from original position onto a shaft. Small container is enough for a complete stern drive and future repair jobs.
$9.95
$11.95
680 Loctite
680 Loctite Retaining compound
.34 FL.OZ. (10ml) bottle
$29.95
$36.89
508235 OMC Johnson sealing compound - 4 oz
P/N 508235
Gasket compound
( 4oz / 118 ml ) – used for bell housing gasket, o-rings
$22.95
$27.89
508235 OMC Johnson Compound - 16 OZ (471ml)
P/N 508235
Gasket compound – 16 FL. OZ (470 ml).
This is used on the o-rings and gaskets when re-sealing the outdrive.
$29.95
$38.89