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Harkers Island, NC 28531
(252) 504-3355

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Home :: Outboard Parts :: Mercury Mariner :: Drive System (Lower Unit) :: Gearcase Components

Gearcase Components

Select Parts from an Illustration of Your Engine

3.9, 4, 4.5, 6, 7.5, 9.8 HP

6, 8, 9.9, 10, 15 HP

18XD, 20, 25 HP

25 HP (4S), 30 HP (2-CYL.), 40 HP, 50 HP (2 & 3-CYL.)

35-70 HP (2, 3 & 4-CYL.)

50, 55, 60 HP (3-CYL.) (2-STROKE), 40, 50, 60 HP EFI (4-CYL.) (4-STROKE)

30-125 HP (3 & 4-CYL.)

L4, L6 & V6 (65-225 HP)

3.0L (200 DFI, 225 CARB, 225 & 250 EFI)

4-STROKE VERADO INLINE 6

Displaying 1 to 30 (of 55 products)

Model Item Name Price+

BPI21020

Bushing Shift Shaft for Mercury Mariner 23-77631A2

Shift Shaft Bushing for Mercury/Mariner 30 HP 2 Cyl., 40 HP 2/3 Cyl., Inline 6, and V6 OEM: 23-77631A2

$10.95

BPI13992

Drain Plug Replaces: Mercury 8M0119211 | 806608A02 | 806608A1

MerCruiser / Cooling / Drain Plug OEM: Mercury Replaces: Mercury 8M0119211 | 806608A02 | 806608A1 For 1987-98/2006-10 Alpha One, Alpha Gen II,...

$12.99

BPI21110

Nut Cover for Mercury Mariner Lower Unit 52699

Cover Nut fits Mercury, Mariner Lower Units and 80 series Mercruiser outdrivs. Holds the bearing carrier in lower unit. OEM: 52699

$10.95

BPI31170

Gasket, Drain Plug, Mercruiser, Mercury, Mariner, OMC, Volvo SX

Gasket, Drain Plug Replaces: Mercury Quicksilver # 26-8M0058390; OMC # 307552; Mallory #s 9-60408, 9-60101 For Most Models

$1.25

GLM21490

Water Pump Housing Washer for Mercruiser R Mercury Mariner 12-29245

Washer for Water Pump Housing on Mercruiser Rand Mercury/Mariner/Force Gear Housing Replaces Mercury Marine Quicksilver original equipment part #...

$1.95

GLM21134

Pin Lower Shift Crank for Mercruiser Lower Unit 17-37972-1

Pin for Mercury, Mariner Force Gearcase. Holds the lower shift crank in place in the housing. OEM: 17-37972-1

$1.69

GLM21136

Retainer E-Ring for Mercury Mariner Mercruiser Alpha Gen 2 53-29641

E-Ring for Mercruiser Alpha One Gen. II Lower Unit for the shift shaft. Mercury/Mariner 40-70 HP, 3 Cylinder, 60-125 HP OEM: 53-29641

$1.95

GLM21161

Nut Lock Stainless 10-32 for Mercruiser Mercury Mariner 11-859124

Stainless Steel Lock Nut Fits Mercruiser R, MR, Alpha One and Mercury/Mariner 40-70 HP Lower Unit for water intake screen. OEM: 11-45812, 11-859124

$1.95

EMP10-05207

Screw, Lower Unit, Mercruiser R, MR, Alpha One

Screw, Lower Unit, Mercruiser R, MR, Alpha One. Bolt for Mercury Mariner 4-cyl, 65 Hp | 6-cyl, 70-100 Hp | V6, 150-225 Hp outboard gear housings,...

$1.99

GLM11050

Spring Clutch Dog Pin Retainer for Mercruiser Mercury Mariner 24-30893

Clutch Dog Spring for Mercruiser And for Mercury Mariner Applications. Goes Around the Clutch Dog and Holds The Pin From the Shift Spool In Place....

$2.95

GLM21131

Cross Pin, Mercruiser, Mercury, Mariner Lower Unit

Cross Pin for Mercruiser R, MR, Alpha One and Gen. II; Mercury/Mariner 60-125 HP, Inline/V6, OEM: 17-30632

$5.95

GLM11071

Key Impeller for Mercruiser Mercury Mariner Lower Unit 28-43037

Key for Water Pump on Mercruiser Alpha One Gen. II and Mercury/Mariner Gearcases Replaces Mercury Marine Quicksilver # 28-43037

$4.95

GLM31170

Gasket, Drain Plug, Mercruiser, Mercury, Mariner, OMC, Volvo SX

Gasket, Drain Plug Replaces: Mercury Quicksilver # 26-8M0058390; OMC # 307552; Mallory #s 9-60408, 9-60101 For Most Models (2 per pack)

$2.95

... more info
Replacement Available

GLM32800

Washer, Lower Unit, Mercruiser, Mercury, Mariner

Washer for Lower Unit on Mercruiser, Mercury/Mariner OEM:12-92721

$2.95

GLM21740

Screw, Zinc, Trim Tab, Mercury, Mariner, Mercruiser

Trim Tab Zinc-Screw, For Mercruiser, Mercury/Mariner OEM: 10-32470

$9.95

GLM23225

Shim Set, Mercury, Mariner, Force Inline 4 40-50 HP Outboard 15-92881A1

Shim Set for Lower Unit Gears on Mercury/Mariner/Force Fits: L4 40 HP Serial No. OC159200 & Up (1989-Up) L4 45 HP Serial No. 5531630 & Up (1986) L4...

$3.45

GLM21741

Screw, Gear Housing, Mercury, Mariner, Mercruiser

Screw, Gear Housing for Mercury/Mariner and Mercruiser OEM: 10-806327

$5.95

MAL9-72004

Nut Lock 7/16 Fine Thread Stainless Steel for Mercruiser 11-13439-1

Lock Nut, 7/16" fine For Mercruiser R, MR, Alpha One Upper Unit and Trim Assembly; Bravo Trim Assembly; R Lower Unit; OEM: 11-13439-1 Where Ignition...

$3.95

BPI22420

Plug Drain Fill or Vent Mercruiser Mercury Mariner Johnson Evinrude OMC

Screw Set for Johnson/Evinrude # 318544; OMC # 307551; Mercruiser, Mercury/Mariner Quicksilver #s: 10-79953Q2, 10-79953Q04, 10-79953K04, 878811;...

$3.95

GLM22420

Plug Drain Fill or Vent Mercruiser Mercury Mariner Johnson Evinrude OMC

Screw Set for Johnson/Evinrude # 318544; OMC # 307551; Mercruiser, Mercury/Mariner Quicksilver #s: 10-79953Q2, 10-79953Q04, 10-79953K04, 878811;...

$3.95

EMP10-02679

Screen Screw for MerCruiser MC-1 & R/MR/Alpha One gearcases replaces 76156

Screw, Insert fastener, Mercruiser Lower Unit. Holds the strainer on the side of Mercury and Mercruiser lower units. OEM: 10-76156

$3.99

GLM23226

Shim Set, Mercury, Mariner, Force Inline 4 40-50 HP Outboard 15-38374A1

Shim Set for Lower Unit Gears on Mercury/Mariner/Force Fits: L4 40 HP Serial No. OC159200 & Up (1989-Up) L4 45 HP Serial No. 5531630 & Up (1986) L4...

$4.45