Mercruiser --> Gearcase Breakdown


Mercruiser
MC-1 & R

CLICK ON THE PART YOU NEED BELOW
GLM17000
Gear Housing Assembly
---------------------


(OEM: 1623-5356A4)GLM12410
Water Pump Hsg
---------------------


(OEM: 46-96148T1)GLM12810
Cup
---------------------


(OEM: 48752)GLM89840
Impeller
---------------------


(OEM: 47-89984-2)GLM21720
Washer
---------------------


(OEM: 12-36001)GLM12821
Screw
---------------------


(OEM: 10-30720)GLM21180
Nut
---------------------


(OEM: 11-826711-9)GLM12830
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Seal
---------------------


(OEM: 26-38970)GLM12830
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Seal
---------------------


(OEM: 26-38970)GLM12820
Tube Guide
---------------------


(OEM: 23-29804T)GLM81160
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-30613)GLM81160
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-30613)GLM81160
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-30613)GLM21190
Nut
---------------------


(OEM: 11-45592)GLM21490
Washer
---------------------


(OEM: 12-29245)GLM11070
Key
---------------------


(OEM: 28-56654)GLM31020
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25115
Gasket
---------------------


(OEM: 27-858524)GLM31020
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25115
Gasket
---------------------


(OEM: 27-858524)GLM12510
Wear Plate
---------------------


(OEM: 32435)GLM31010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Gasket
---------------------


(OEM: 27-85608-1)GLM31010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Gasket
---------------------


(OEM: 27-85608-1)GLM12310
Water Pump Base
---------------------


(OEM: 46-57234A1)GLM85040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal
---------------------


(OEM: 26-16977)GLM85040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal
---------------------


(OEM: 26-16977)GLM85040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal
---------------------


(OEM: 26-16977)GLM85070
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal
---------------------


(OEM: 26-89238)GLM85070
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal
---------------------


(OEM: 26-89238)GLM85070
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal
---------------------


(OEM: 26-89238)GLM82260
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-33145)GLM82260
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-33145)GLM82260
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-33145)GLM82260
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-33145)GLM31040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Gasket
---------------------


(OEM: 27-856704)GLM31040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Gasket
---------------------


(OEM: 27-856704)GLM31040
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Gasket
---------------------


(OEM: 27-856704)GLM21570
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-53079A1)GLM21570
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-53079A1)GLM21570
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-53079A1)GLM23300
 INCLUDED IN: GLM25115
Shim
---------------------


(OEM: 15-57007A1)GLM23300
 INCLUDED IN: GLM25115
Shim
---------------------


(OEM: 15-57007A1)GLM21800
Washer
---------------------


(OEM: 12-29395)GLM30010
 INCLUDED IN: GLM25115
Washer
---------------------


(OEM: 12-31266)GLM85581
 INCLUDED IN: GLM87510
Oil Seal
---------------------


(OEM: 26-816464-1)GLM21010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Bushing Ass’y
---------------------


(OEM: 23-30617A2)GLM21010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Bushing Ass’y
---------------------


(OEM: 23-30617A2)GLM21010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Bushing Ass’y
---------------------


(OEM: 23-30617A2)GLM21010
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Bushing Ass’y
---------------------


(OEM: 23-30617A2)GLM81180
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-25439)GLM81180
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-25439)GLM32790
Washer
---------------------


(OEM: 12-27880)GLM21132
Clip
---------------------


(OEM: 18-20233)GLM21030
Shift Shaft
---------------------


(OEM: 77481-1)GLM85140
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Seal
---------------------


(OEM: 26-45577-1)GLM85140
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Seal
---------------------


(OEM: 26-45577-1)GLM21731
Screw
---------------------


(OEM: 22-67892A1)GLM31170
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Washer
---------------------


(OEM: 12-19183-2)GLM31170
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Washer
---------------------


(OEM: 12-19183-2)GLM31170
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Washer
---------------------


(OEM: 12-19183-2)GLM21870
Insert (Starboard)
---------------------


(OEM: 93423-1)GLM21880
Insert (Port)
---------------------


(OEM: 93424-1)GLM12822
Screw
---------------------


(OEM: 10-76156)GLM21161
Nut
---------------------


(OEM: 11-45812)GLM21170
Nut
---------------------


(OEM: 11-34933)GLM21740
Screw
---------------------


(OEM: 10-32470)GLM22430
Screw
---------------------


(OEM: 10-30206)GLM12670
Trim Tab
---------------------


(OEM: 31640-4)GLM21600
 INCLUDED IN: GLM25110
Roller Bearing
---------------------


(OEM: 31-92366A1)GLM21600
 INCLUDED IN: GLM25110
Roller Bearing
---------------------


(OEM: 31-92366A1)GLM11100
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Gear Set
---------------------

GLM11100
Gear Set
---------------------


(OEM: 43-96084A7)GLM11100
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Gear Set
---------------------

GLM11100
Gear Set
---------------------


(OEM: 43-96084A7)GLM11100
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Gear Set
---------------------

GLM11100
Gear Set
---------------------


(OEM: 43-96084A7)GLM11190
 INCLUDED IN: GLM25115
Nut
---------------------


(OEM: 11-35921)GLM11190
 INCLUDED IN: GLM25115
Nut
---------------------


(OEM: 11-35921)GLM11030
Shift Spool
---------------------


(OEM: 818349T1)GLM11040
Shift Crank
---------------------


(OEM: 76865)GLM23220
 INCLUDED IN: GLM25110
Shim
---------------------


(OEM: 15-47397A1)GLM23220
 INCLUDED IN: GLM25110
Shim
---------------------


(OEM: 15-47397A1)GLM21590
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-35928T1)GLM21590
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-35928T1)GLM21590
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-35928T1)GLM11420
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-30895)GLM11420
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-30895)GLM11050
Spring
---------------------


(OEM: 24-30893)GLM21131
Cross Pin
---------------------


(OEM: 17-30632)GLM11060
 INCLUDED IN: GLM25115
Clutch
---------------------


(OEM: 52-853594T)GLM11060
 INCLUDED IN: GLM25115
Clutch
---------------------


(OEM: 52-853594T)GLM11155
Prop Shaft
---------------------


(OEM: 44-66060-3)GLM23290
SIE18-2284
 INCLUDED IN: GLM25115
Shim
---------------------


(OEM: 15-97166, 15-31535A1)GLM23290
SIE18-2284
 INCLUDED IN: GLM25115
Shim
---------------------


(OEM: 15-97166, 15-31535A1)GLM23290
SIE18-2284
 INCLUDED IN: GLM25115
Shim
---------------------


(OEM: 15-97166, 15-31535A1)GLM23141
Thrust Ring
---------------------


(OEM: 35915)GLM21620
 INCLUDED IN: GLM25115
Ball Bearing
---------------------


(OEM: 30-88957T)GLM21620
 INCLUDED IN: GLM25115
Ball Bearing
---------------------


(OEM: 30-88957T)GLM83440
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-31534)GLM83440
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-31534)GLM83440
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
O-Ring
---------------------


(OEM: 25-31534)GLM11410
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-30956)GLM11410
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-30956)GLM11410
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Roller Bearing
---------------------


(OEM: 31-30956)GLM11405
Bearing Carrier
---------------------


(OEM: 73020A14)GLM85130
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal (inside)
---------------------


(OEM: 26-76868)GLM85130
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal (inside)
---------------------


(OEM: 26-76868)GLM85130
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Oil Seal (inside)
---------------------


(OEM: 26-76868)GLM85700
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal (outside)
---------------------


(OEM: 26-12224)GLM85700
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal (outside)
---------------------


(OEM: 26-12224)GLM85700
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Oil Seal (outside)
---------------------


(OEM: 26-12224)GLM11080
Key
---------------------


(OEM: 28-30281)GLM11380
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Keyed Washer
---------------------


(OEM: 14-79447)GLM11380
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Keyed Washer
---------------------


(OEM: 14-79447)GLM11380
 INCLUDED IN: GLM25110
 INCLUDED IN: GLM25115
Keyed Washer
---------------------


(OEM: 14-79447)GLM21120
BPI21120
MAL9-72155
Cover Nut
---------------------


(OEM: 79448)GLM21120
BPI21120
MAL9-72155
Cover Nut
---------------------


(OEM: 79448)GLM21120
BPI21120
MAL9-72155
Cover Nut
---------------------


(OEM: 79448)GLM21301
Thrust Hub
---------------------


(OEM: 12-835467-1)GLM21760
Lockwasher
---------------------


(OEM: 13-42351-1)GLM21360
Washer
---------------------


(OEM: 12-31211A3)GLM21210
Tab Washer
---------------------

GLM21201
Tab Washer
---------------------


(OEM: 14-31210)GLM21230
Lock Nut
---------------------


(OEM: 11-827614)GLM11110
Drive Shaft
---------------------


(OEM: 45-41939F1)GLM21330
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Slinger
---------------------


(OEM: 25-30271)GLM21330
 INCLUDED IN: GLM87510
 INCLUDED IN: GLM25110
Slinger
---------------------


(OEM: 25-30271)GLM11020
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Reverse Gear
---------------------


(OEM: 43-92320T)GLM11020
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Reverse Gear
---------------------


(OEM: 43-92320T)GLM11020
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Reverse Gear
---------------------


(OEM: 43-92320T)GLM11100
 INCLUDED IN: GLM11300
 INCLUDED IN: GLM25115
Gear Set
---------------------

GLM11100
Gear Set
---------------------


(OEM: 43-96084A7)BPI12110
GLM12110
Water Pump Kit for Mercruiser 1 and R Models with Preload Pin 1974-1982
---------------------


(OEM: 46-96148A8)BPI12110
GLM12110
Water Pump Kit for Mercruiser 1 and R Models with Preload Pin 1974-1982
---------------------


(OEM: 46-96148A8)BPI12290
GLM12290
SIE18-3217
Impeller Kit Water Pump for Mercruiser
---------------------


(OEM: 47-89984T5)BPI12290
GLM12290
SIE18-3217
Impeller Kit Water Pump for Mercruiser
---------------------


(OEM: 47-89984T5)GLM12754
Anode Kit Aluminum for Mercruiser MR Alpha One 1984-1990
---------------------


(OEM: 888756Q02)BPI87510
GLM87510
SIE18-2652
Seal Kit Lower Unit for Mercruiser #1 R Alpha 1 1990 and earlier
---------------------


(OEM: 26-33144A2)BPI87510
GLM87510
SIE18-2652
Seal Kit Lower Unit for Mercruiser #1 R Alpha 1 1990 and earlier
---------------------


(OEM: 26-33144A2)BPI87510
GLM87510
SIE18-2652
Seal Kit Lower Unit for Mercruiser #1 R Alpha 1 1990 and earlier
---------------------


(OEM: 26-33144A2)

More Kits Available

Complete Gearcase Assembly
OEM: 1623-851A43
Water Pump Housing Kit
Complete Gearcase Assembly Kit
Lower Gear Housing Seal kit for a Mercruiser Sterndrive. It will fit Models R, MR & Alpha One 1991 & Down. This item replaces Merc. # 26-33144A2
A complete Outdrive Seal Kit for a Mercruiser Sterndrive. This kit contains the complete Water Pump kit, Upper Housing Seal kit, and the Lower Housing Seal kit. It will fit the following application: MC-1/R 1970-1983, S/N # 2663442 - 6225576.
Impeller Kit, Water Pump, Mercury, Mariner, Mercruiser

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