Sierra / Mallory

Interchanges/Replaces

GLM

• 31600

Mercury Marine

• 27-55279
• 27-552791

Key Features:

• Water Hose Connection 1 1/4" or 31.8mm
• 9" x 2" and 3/8" NPT Inlet/Outlet Oil Fitting
• Oil-6 GPM MAX Water 25 GPM MAX
• 10" or 254mm Tube Bundle, Overall length 12" or 304.8mm
• 1 1/4" or 31.8mm Water Inlet and Outlet
• Shipped bare metal, ready for primer and factory paint finish

Additional Details:

• Material: Magnesium

Interchanges/Replaces

Volvo Penta

• 3888818

Additional Details:

• Material: Magnesium

Interchanges/Replaces

Volvo Penta

• 3888815

Additional Details:

• Material: Aluminum

Interchanges/Replaces

Volvo Penta

• 23164609
• 3888813

Additional Details:

• Material: Aluminum

Interchanges/Replaces

Volvo Penta

• 23164611
• 3888816

Additional Details:

• Material: Zinc

Interchanges/Replaces

Volvo Penta

• 3888817

Interchanges/Replaces

OMC Stern Drive

• 3852550
• 911797

Volvo Penta

• 3852550

Additional Details:

• For: Alpha Gen II, All Bravo

Interchanges/Replaces

GLM

• 86711

Mallory

• 9-72420

Mercruiser Stern Drive

• 43713

Key Features:

• 1978-86 All

Interchanges/Replaces

GLM

• 86710

Mallory

• 9-72812

OMC Stern Drive

• 909527

Interchanges/Replaces

GLM

• 86700

Mallory

• 9-72813

OMC Stern Drive

• 313080

Key Features:

• Sealed Gimbal Bearing

Additional Details:

• For: R, MR, Alpha I (1983-1990) w/exhaust tube s/n 6225577-0D469858
• For: Alpha I SS (1986-1989) w/exhaust tube s/n 0A545004 & Up

Interchanges/Replaces

Mercruiser Stern Drive

• 30-803098T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2840	GLM 31160 Mercruiser Stern Drive 27-35982	1	Bell Housing Gasket		N/A
18-7153	GLM 81180 Mallory 9-76505 Mercruiser Stern Drive 25-25439 Mercury Marine 25-25439 Mercury Race Outboard 25-25439 Mercury Race Sterndrive 25-25439 OMC Stern Drive 3852565 911851 Volvo Penta 3852565 997368	2	O-Ring
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		N/A
18-7117	GLM 82150 Johnson/Evinrude Outboard 303360 Mallory 9-76507 Mercruiser Stern Drive 25-35027 Mercury Marine 25-35027	1	O-Ring		N/A
18-2743	GLM 31141 Mallory 9-61012 Mercruiser Stern Drive 27-94996 27-949962 27-94996A20	1	Outdrive Mounting Gasket		N/A
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-2760	GLM 89150 Mallory 9-72810 Mercruiser Stern Drive 78458 78458A1	1	Exhaust Tube		N/A
18-2751	GLM 89050 Mallory 9-72701 Mercruiser Stern Drive 60932A1 60932A4	1	U-Joint Bellows		N/A
18-21001	Mercruiser Stern Drive 30-60794A2 30-60794A4 30-60794B4 30-879194A02	1	Gimbal Bearing		N/A
18-710-24-2		1	Hose Clamp-1-1/16 TO 2		N/A
18-710-16-2		2	Hose Clamp-11/16 TO 1-1/2
18-3601	GLM 47120 Mallory 9-73001 Mercruiser Stern Drive 32-32461 32-32461A1	1	Water Intake Hose		N/A
18-3602	GLM 47110 Mallory 9-73002 Mercruiser Stern Drive 32-4172533 32-8M0062309 32-8M0109048	1	Water Intake Hose		N/A

Key Features:

• Sealed Gimbal Bearing

Additional Details:

• For: Alpha I Gen II (1991 & Up) s/n 0D469859 & Up

Interchanges/Replaces

Mallory

• 9-72900
• 9-72906

Mercruiser Stern Drive

• 30-803099T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-2750	GLM 89100 Mallory 9-72703 Mercruiser Stern Drive 18654A1 32734 32734A3	1	Exhaust Bellows		N/A
18-2747	GLM 89180 Mallory 9-72704 Mercruiser Stern Drive 816431A1	1	Drive Bellows		N/A
18-21006	Mallory 9-72415 Mercruiser Stern Drive 30-862540A04 30-862540A3 30-862540T1 30-879194A01	1	Gimbal Bearing		N/A
18-2840	GLM 31160 Mercruiser Stern Drive 27-35982	1	Bell Housing Gasket		N/A
18-7153	GLM 81180 Mallory 9-76505 Mercruiser Stern Drive 25-25439 Mercury Marine 25-25439 Mercury Race Outboard 25-25439 Mercury Race Sterndrive 25-25439 OMC Stern Drive 3852565 911851 Volvo Penta 3852565 997368	2	O-Ring
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		N/A
18-7117	GLM 82150 Johnson/Evinrude Outboard 303360 Mallory 9-76507 Mercruiser Stern Drive 25-35027 Mercury Marine 25-35027	1	O-Ring		N/A
18-2743	GLM 31141 Mallory 9-61012 Mercruiser Stern Drive 27-94996 27-949962 27-94996A20	1	Outdrive Mounting Gasket		N/A
18-710-24-2		1	Hose Clamp-1-1/16 TO 2		N/A
18-710-16-2		2	Hose Clamp-11/16 TO 1-1/2
18-3602	GLM 47110 Mallory 9-73002 Mercruiser Stern Drive 32-4172533 32-8M0062309 32-8M0109048	1	Water Intake Hose		N/A

Key Features:

• Sealed Gimbal Beariing

Additional Details:

• For: Bravo I/II/III (1998 & Up) s/n 0B664190 & Up
• For: Blackhawk (1994-1995) s/n 0D469859 & Up

Interchanges/Replaces

Mallory

• 9-72903
• 9-72907

Mercruiser Stern Drive

• 30-803100T1
• 8M0095485

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-2750	GLM 89100 Mallory 9-72703 Mercruiser Stern Drive 18654A1 32734 32734A3	1	Exhaust Bellows		N/A
18-2756	GLM 89140 Mallory 9-72702 Mercruiser Stern Drive 86840A05 86840A3 8M0062406	1	U-Joint Bellows		N/A
18-21006	Mallory 9-72415 Mercruiser Stern Drive 30-862540A04 30-862540A3 30-862540T1 30-879194A01	1	Gimbal Bearing		N/A
18-2760	GLM 89150 Mallory 9-72810 Mercruiser Stern Drive 78458 78458A1	1	Exhaust Tube		N/A
18-3603	GLM 47130 Mallory 9-73003 Mercruiser Stern Drive 32-43437 32-8M0090859	1	Water Intake Hose		N/A
18-2615	GLM 39640 Mallory 9-62604 Mercruiser Stern Drive 16755 16755A1 16755Q1	1	Outdrive Gasket Set		N/A

Key Features:

• Greasable Gimbal Bearing

Additional Details:

• Fits: Bravo & Blackhawk

Interchanges/Replaces

Mallory

• 9-72905

Mercruiser Stern Drive

• 30-803100T1
• 8M0095485

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2756	GLM 89140 Mallory 9-72702 Mercruiser Stern Drive 86840A05 86840A3 8M0062406	1	U-Joint Bellows		N/A
18-2750	GLM 89100 Mallory 9-72703 Mercruiser Stern Drive 18654A1 32734 32734A3	1	Exhaust Bellows		N/A
18-2760	GLM 89150 Mallory 9-72810 Mercruiser Stern Drive 78458 78458A1	1	Exhaust Tube		N/A
18-3603	GLM 47130 Mallory 9-73003 Mercruiser Stern Drive 32-43437 32-8M0090859	1	Water Intake Hose		N/A
18-2615	GLM 39640 Mallory 9-62604 Mercruiser Stern Drive 16755 16755A1 16755Q1	1	Outdrive Gasket Set		N/A
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-21005	Mallory 9-72412 Mercruiser Stern Drive 30-862540A04 30-862540A3 30-862540T1 30-879194A01	1	Gimbal Bearing		N/A

Key Features:

• Sealed Gimbal Bearing

Additional Details:

• For: R, MR, Alpha I (1983-1990) s/n 6225577-0D469858: Alpha I SS (1986-1989) s/n 0A545004 & Up

Interchanges/Replaces

Mercruiser Stern Drive

• 30-803097T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-2751	GLM 89050 Mallory 9-72701 Mercruiser Stern Drive 60932A1 60932A4	1	U-Joint Bellows		N/A
18-2750	GLM 89100 Mallory 9-72703 Mercruiser Stern Drive 18654A1 32734 32734A3	1	Exhaust Bellows		N/A
18-21001	Mercruiser Stern Drive 30-60794A2 30-60794A4 30-60794B4 30-879194A02	1	Gimbal Bearing		N/A
18-2619-1	GLM 39620 Mallory 9-62601 9-62601-25 Mercruiser Stern Drive 27-64818A2 27-64818A3 27-94996 27-949962 27-94996A1 27-94996A2 27-94996Q2	1	Outdrive Gasket Set		N/A
18-2161	GLM 21140 Mallory 9-72153 Mercruiser Stern Drive 45518A1 45518A2 45518A3	1	Shift Arm		N/A
18-710-16-2		2	Hose Clamp-11/16 TO 1-1/2
18-710-24-2		1	Hose Clamp-1-1/16 TO 2		N/A
18-3602	GLM 47110 Mallory 9-73002 Mercruiser Stern Drive 32-4172533 32-8M0062309 32-8M0109048	1	Water Intake Hose		N/A
18-3601	GLM 47120 Mallory 9-73001 Mercruiser Stern Drive 32-32461 32-32461A1	1	Water Intake Hose		N/A

Key Features:

• Greasable Gimbal Bearing

Additional Details:

• For: I, R, MR, Alpha I with exhaust tube

Interchanges/Replaces

GLM

• 21951

Mallory

• 9-72901

Mercruiser Stern Drive

• 30-803098T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2100	GLM 21900 Mallory 9-72410 Mercruiser Stern Drive 30-60794A2 30-60794A4 30-60794B4 30-879194A02 OMC Stern Drive 3853807 983937 Volvo Penta 21752712 3853807	1	Heavy Duty Gimbal Bearing		N/A
18-2751	GLM 89050 Mallory 9-72701 Mercruiser Stern Drive 60932A1 60932A4	1	U-Joint Bellows		N/A
18-2760	GLM 89150 Mallory 9-72810 Mercruiser Stern Drive 78458 78458A1	1	Exhaust Tube		N/A
18-3601	GLM 47120 Mallory 9-73001 Mercruiser Stern Drive 32-32461 32-32461A1	1	Water Intake Hose		N/A
18-3602	GLM 47110 Mallory 9-73002 Mercruiser Stern Drive 32-4172533 32-8M0062309 32-8M0109048	1	Water Intake Hose		N/A
18-2743	GLM 31141 Mallory 9-61012 Mercruiser Stern Drive 27-94996 27-949962 27-94996A20	1	Outdrive Mounting Gasket		N/A
18-2840	GLM 31160 Mercruiser Stern Drive 27-35982	1	Bell Housing Gasket
18-7153	GLM 81180 Mallory 9-76505 Mercruiser Stern Drive 25-25439 Mercury Marine 25-25439 Mercury Race Outboard 25-25439 Mercury Race Sterndrive 25-25439 OMC Stern Drive 3852565 911851 Volvo Penta 3852565 997368	2	O-Ring
18-7117	GLM 82150 Johnson/Evinrude Outboard 303360 Mallory 9-76507 Mercruiser Stern Drive 25-35027 Mercury Marine 25-35027	1	O-Ring		N/A
18-7170	Chrysler/Force/US Marine 25-33504 GLM 82200 Johnson/Evinrude Outboard 307239 Mallory 9-76502 Mercruiser Stern Drive 25-33504 Mercury Marine 25-33504 OMC Stern Drive 307239 3852071 Volvo Penta 3852071	1	O-Ring		N/A
18-7321	GLM 21790 Mallory 9-73115 Mercruiser Stern Drive 54-38863 54-866507 54-8M0090424	1	Bellows Clamp		N/A
18-2753-2	GLM 89080 Mercruiser Stern Drive 31659 74639 74639A2	1	Shift Cable Bellows		N/A
18-710-24-2		1	Hose Clamp-1-1/16 TO 2		N/A
18-710-16-2		2	Hose Clamp-11/16 TO 1-1/2

Additional Details:

• For: Mercury 3 cyl.

Interchanges/Replaces

CDI

• 134-6453

Mercury Marine

• 68162A3
• 68162A6
• 96455A1
• 96455A8

Additional Details:

• For: Mercury 6 cyl.

Interchanges/Replaces

CDI

• 134-6456

Mercury Marine

• 68162A1
• 68162A5
• 68162A8
• 96455A6
• 96455A9

Key Features:

• For: Mercruiser Floor Mount Bracket

Additional Details:

• Material: Metal

Interchanges/Replaces

Mercruiser Stern Drive

• 42419A1
• 58397A2
• 58397A3
• 862548A1
• 88553A1
• 88893A4