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Serial 0B721206 Thru 0D805068 - Alpha Drives

Drive Shaft Adaptor 91-56775T
Your Price:
$59.36

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Drive Shaft Adaptor 91-56775T

525-91-56775T

Drive Shaft Adaptor 91-56775T

Provides a wrench surface to turn the drive shaft on the MC-1, R-MR, Alpha One and Alpha One Gen II drive units.

Supercedes: 91-56775


Drive Shaft Bearing Preload Tool 91-14311A04
Your Price:
$392.31

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Drive Shaft Bearing Preload Tool 91-14311A04

525-91-14311A04

Drive Shaft Bearing Preload Tool 91-14311A04

Supersedes: 91-14311A1
91-44307A1
91-14311A2

Preloads the drive shaft bearing when checking pinion height and backlash on MC-1, R-MR, Alpha One and Alpha One Gen II drive units.
Note: This tools is also used on the Mercury and Mariner V-6 gear cases

Supercedes: 91-14311A1, 91-14311A2


Drive Shaft Bearing Retainer Wrench 91-43506T
Your Price:
$96.54

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Drive Shaft Bearing Retainer Wrench 91-43506T

525-91-43506T

Drive Shaft Bearing Retainer Wrench 91-43506T

Removes and installs the threaded bearing on all Alpha drive units.

Supercedes: FT15691, FT11293, 91-43506, 91-43506


Driver Head 91-36569T
Your Price:
$33.15

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Driver Head 91-36569T

525-91-36569T

Driver Head 91-36569T

Removes the pinion bearing from the MC-1, R-MR, Alpha One and Alpha One Gen II gear cases.

Supercedes: 91-36569

Supercedes: 91-36569


Driver Rod 91-37323
Your Price:
$24.92

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Driver Rod 91-37323

525-91-37323

Driver Rod 91-37323

Use with various drivers to install bearings on the Alpha One Gen II, Bravo One and Bravo Two gear cases.


Forward Gear Assembly Tube 91-815850
Your Price:
$113.10

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Forward Gear Assembly Tube 91-815850

525-91-815850

Forward Gear Assembly Tube 91-815850

Installs and removes the forward gear of the Alpha One and Alpha One Gen II counter rotating gear cases.


Forward Gear Bearing Cup Puller Shaft 91-31229
Your Price:
$42.64

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Forward Gear Bearing Cup Puller Shaft 91-31229

525-91-31229

Forward Gear Bearing Cup Puller Shaft 91-31229

5/8 in. x 18 in. (15.875 mm) long threaded rod.


Gimbal Bearing Installation Collar Number 3 91-30366T1
Your Price:
$44.72

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Gimbal Bearing Installation Collar Number 3 91-30366T1

525-91-30366T1

Gimbal Bearing Installation Collar Number 3 91-30366T1

Use with 91-29310 Plate Puller, 91-37323 Driver Rod and 91-32335T Bearing Head to install the gimbal bearing in Alpha, MC-1 and Bravo drive units.

Supercedes: 91-30366, 91-303661


Guide \ Puller Tool 91-90774
Your Price:
$87.62

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Guide \ Puller Tool 91-90774

525-91-90774

Guide \ Puller Tool 91-90774

Presses the bearing cone onto the Alpha One Gen II drive shaft housing pinion gear.


Guide Plate 91-816243
Your Price:
$52.54

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Guide Plate 91-816243

525-91-816243

Guide Plate 91-816243

Centers the rod used to drive in the front bearing on the Alpha One Gen II counter rotating gear case.


Hex Nut @2 11-24156
Your Price:
$3.60

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Hex Nut @2 11-24156

525-11-24156

Hex Nut @2 11-24156 (Priced Each. Must sell in quantities of 2)

A 5/8 in. x 18 in. hex nut which aids in the removal and installation of various engine components. May use with Puller Shaft 91-31229; also included in the Bearing Removal and Installation Kit (91-31229A7).


Hinge Pin Tool 91-78310
Your Price:
$30.94

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Hinge Pin Tool 91-78310

525-91-78310

Hinge Pin Tool 91-78310

Removes and installs the hinge pins from all Mercury MerCruiser drive units.


Lube Gun @4 91-37299Q2
Your Price:
$26.93

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Lube Gun @4 91-37299Q2

525-91-37299Q2

Lube Gun (Priced Each. Must be sold in quantities of 4) 91-37299Q2

Allows easy access to grease fittings.

Supersedes: 91-37299, 91-37299A1


OMC Cobra & King Cobra Dual Drives Stern Drive Lock
Your Price:
$54.99

Mercruiser Alpha, Bravo, OMC Cobra & King Cobra Dual Drives Stern Drive Lock

560-74019

McGard Stern Drive Locks - Mercruiser Alpha, Bravo, OMC Cobra & King Cobra Dual Drives Stern Drive Lock

  • Overall Lock Length: .750"
  • Thread Size: 7/16" - 20
  • Hex Size: 5/8"
Stern Drive Applications: Mercruiser Alpha, Bravo I-III (incl. X & XR), Blackhawk, Vazer, OMC Cobra & King Cobra, Volvo SX, DP-S

Stern drive theft is on the rise, don't take a chance on losing your favorite outdrive or prop, for that matter be safe not sorry. Simply replace one of the stern drive mounting nuts with a McGard lock. Stern drive locks are fully machined from high quality stainless steel and through-hardened. This proven design features a free-spinning collar that turns if attacked by gripping tools without loosening the lock. Give yourself the best protection available against stern drive theft. Ask for McGard Marine Locks by name.


Mercruiser Alpha, Bravo, TRS Prop Lock
Your Price:
$78.99

Mercruiser Alpha, Bravo, TRS Prop Lock

560-74039

McGard Prop Locks - Mercruiser Alpha, Bravo, TRS Prop Lock

  • Overall Lock Length: 1.025"
  • Thread Size: 3/4" - 16
  • Hex Size: 1 - 1/16"
  • Set of 1 Lock, 1 Key, 1 Washer and 1 Cap
Stern Drive Applications: MerCruiser Alpha I, Bravo I (incl. X & XR), Vazer
OMC Cobra and King Cobra
Outboard Motor Applications: Mercury/Mariner 70 hp & larger (ex. 225hp 4 stroke before 2005)
Mercury Bigfoot 40 hp, 50 hp, 60 hp (4 stroke)
Optimax 75 hp & larger, Verado 135 hp & larger
Johnson/Evinrude 150 hp & larger (2 stroke)

Propeller theft is on the rise, don't take a chance on losing your favorite outdrive or prop, for that matter be safe not sorry. Protect yourself against expensive propeller theft with a McGard propeller lock, featuring the same patented design as our stern drive and outboard motor locks. A free-spinning collar will turn if attacked by gripping tools without loosening the lock. Constructed of naval brass and hardened stainless steel, once installed our propeller lock offers maximum security for 24 hour protection.


Needle Bearing Driver 91-15755T
Your Price:
$50.44

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Needle Bearing Driver 91-15755T

525-91-15755T

Needle Bearing Driver 91-15755T

Supersedes: 91-37263
91-15755
91-31109

Installs needle bearings in MC-1, R-MR, Alpha One and Alpha One Gen II bearing carriers.

Supercedes: 91-31109, 91-37263, 91-15755, 91-15755


Needle Bearing Driver 91-33491
Your Price:
$137.85

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Needle Bearing Driver 91-33491

525-91-33491

Needle Bearing Driver 91-33491

Installs the needle bearing in the forward gear, removes and installs the seals and bearing in the gimbal housing of the MC-1, R-MR and Alpha One drive units.


Needle Bearing Driver 91-33492T
Your Price:
$26.92

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Needle Bearing Driver 91-33492T

525-91-33492T

Needle Bearing Driver 91-33492T

Removes and installs the lower swivel pin needle bearings in the gimbal ring on the MC-1, R-MR and Alpha One drive units.

Supersedes: 91-33492

Supercedes: 91-33492


Needle Bearing Driver, Pilot Washer 91-37324T
Your Price:
$35.31

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Needle Bearing Driver, Pilot Washer 91-37324T

525-91-37324T

Needle Bearing Driver, Pilot Washer 91-37324T

Used to pilot the threaded rod when installing the pinion bearing in the MC-1, R-MR and Alpha One drive units.

Supercedes: 91-37324


Needle Bearing Installation Tool, Reverse Gear 91-807944T
Your Price:
$56.15

This Part has options, please click the button below to order.

Special Order OEM Mercruiser Parts can take up to 7-10 business days to ship.

Needle Bearing Installation Tool, Reverse Gear 91-807944T

525-91-807944T

Needle Bearing Installation Tool, Reverse Gear 91-807944T

Use to install the needle bearing in the reverse gear on the Alpha One Gen II counter rotation drive units.

Supersedes: 91-807944

Supercedes: 91-807944


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