Sierra / Mallory

Interchanges/Replaces

Mallory

• 9-74701

Suzuki Outboard

• 25700-94500

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-7118	GLM 82030 Johnson/Evinrude Outboard 305242 Mallory 9-76525 Suzuki Outboard 09280-08008	1	O-Ring		N/A
18-8331	Mallory 9-60202 9-60202-50 9-72657 Suzuki Outboard 09168-10004 09168-10022	3	Drain Plug Gasket		N/A
18-7182	Volvo Penta 925092	1	O-Ring		N/A
18-7133	GLM 82400 Johnson/Evinrude Outboard 305123 321119 Mallory 9-76529 OMC Stern Drive 305123	1	O-Ring		N/A
NSS	Suzuki Outboard 09282-24003	2	Seal	No Image	N/A
NSS	Suzuki Outboard 09282-28002	2	Seal	No Image	N/A
NSS	Suzuki Outboard 17472-94510	1	Water Pump Plate Gasket	No Image	N/A
NSS	Suzuki Outboard 25142-94560	1	Shift Guide Gasket	No Image	N/A
NSS	Suzuki Outboard 25142-94520	1	Shift Guide Gasket	No Image	N/A
NSS	Suzuki Outboard 09284-08005	1	Dust Seal	No Image	N/A
18-7191		1	O-Ring		N/A

Additional Details:

• For: IA/IB/IC & EZ Shift, MC-I, R, MR, Alpha One & SS

Interchanges/Replaces

GLM

• 87510

Mallory

• 9-74304

Mercruiser Stern Drive

• 26-33144A1
• 26-33144A2
• 26-89238A1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2002	Chrysler/Force/US Marine 26-76868 GLM 85130 Honda Outboard 91252-ZW1-003 Johnson/Evinrude Outboard 0320862 Mallory 9-76202 Mercruiser Stern Drive 26-30550 26-76868 Mercury Marine 26-30550 26-70019 26-73838 26-76868 OMC Stern Drive 320862	1	Oil Seal		N/A
18-2013	GLM 85040 Mallory 9-76108 Mercruiser Stern Drive 26-16977 26-31507 26-79884 802276 Mercury Marine 26-16977 26-20465 26-31507 26-79884 802276	2	Oil Seal		N/A
18-2014	Chrysler/Force/US Marine 26-F694305 GLM 85070 Mallory 9-76109 Mercruiser Stern Drive 26-33144 26-77634 26-89238 Mercury Marine 26-33144 26-77634 26-89238	1	Oil Seal		N/A
18-2076	Chrysler/Force/US Marine 26-12224 26-F697118 GLM 85700 Mallory 9-76101 Mercruiser Stern Drive 26-12224 Mercury Marine 26-12224	1	Oil Seal		N/A
18-2154	GLM 21010 Mallory 9-76133 Mercruiser Stern Drive 23-30617A1 23-30617A2 23-8M0112749 Mercury Marine 23-30617A1	1	Shift Shaft Housing Bushing		N/A
18-2826	GLM 31040 Mallory 9-60036 Mercruiser Stern Drive 27-33146 27-856704 Mercury Marine 27-33146 27-85610 27-856101	1	Water Pump Base Gasket		N/A
18-2914	GLM 31010 Mallory 9-60034 Mercruiser Stern Drive 27-32433 27-856081 27-8M0090319 Mercury Marine 27-30603 27-32433 27-85608 27-856081 27-8M0090319	1	Water Pump Gasket		N/A
18-2915	GLM 31020 Mallory 9-60035 Mercruiser Stern Drive 27-32434 27-856091 27-858524 Mercury Marine 27-30604 27-32434 27-85609 27-856091 27-858524	1	Water Pump Gasket		N/A
18-2919	GLM 31050 Mallory 9-60031 Mercruiser Stern Drive 27-426311 Mercury Marine 27-42631 27-426311	1	Water Pump Gasket		N/A
18-2944	GLM 85140 Mallory 9-76512 Mercruiser Stern Drive 26-45577 26-455771 26-45577B 26-45577B1	1	Seal Ring Gasket		N/A
18-2945	Chrysler/Force/US Marine 12-19183 F50556 F8077 F8186 Johnson/Evinrude Outboard 307552 Mallory 9-60101 9-60102 Mercruiser Stern Drive 12-19183 12-191832 12-191833 12-19183B 12-20260 12-20260B Mercury Marine 12-19183 12-191832 12-191833 12-20260	2	Drain Screw Gasket		N/A
18-2948	GLM 31180 Mallory 9-43629 Mercruiser Stern Drive 12-49221 Mercury Marine 12-49221 12-492211 27-23245 Mercury Sport Jet 12-49221	1	Rubber Washer		N/A
18-7158	GLM 81160 Johnson/Evinrude Outboard 309731 310585 Mallory 9-76543 Mercruiser Stern Drive 25-30613 25-846357 Mercury Marine 25-30613 25-846357 OMC Stern Drive 310585 310967	1	O-Ring		N/A
18-7159	GLM 83440 Mallory 9-76544 Mercruiser Stern Drive 25-31534 25-48451 Mercury Marine 25-31534	1	O-Ring		N/A
18-7162	Chrysler/Force/US Marine 25-33145 GLM 82260 Johnson/Evinrude Outboard 302337 Mallory 9-76547 Mercruiser Stern Drive 25-32424 25-33145 Mercury Marine 25-33145 Mercury Sport Jet 25-33145 OMC Stern Drive 302337 302377 3852044 Sears 25-33145 Volvo Penta 3852044	1	O-Ring		N/A
18-7176	Chrysler/Force/US Marine 25-90011 25-F74305 F694555 F74035 F74305-1 GLM 81390 Mallory 9-76554 Mercruiser Stern Drive 25-896523 25-90011 Mercury Marine 25-896523 25-90011	1	O-Ring		N/A
18-7426	GLM 21330 Mallory 9-76562 Mercruiser Stern Drive 25-30271 Mercury Marine 25-30271 Mercury Sport Jet 25-30271	1	O-Ring		N/A
18-2340	GLM 30010 Mercruiser Stern Drive 12-31266 Mercury Marine 12-31266	1	Shift Shaft Washer		N/A
NSS	Mercruiser Stern Drive 27-29586	1	Gasket, Gear Housing Flushing Screw	No Image	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	1	O-Ring		N/A
18-2009	GLM 85050 Mallory 9-76105 Mercruiser Stern Drive 26-31249 26-46021 26-89236 26-892361 Mercury Marine 26-25776 26-31249 26-89236	1	Oil Seal		N/A

Additional Details:

• For: All 4 cyl. Cobra (1986-1989)

Interchanges/Replaces

GLM

• 87655

Mallory

• 9-74401

OMC Stern Drive

• 984457
• 985612

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0166	GLM 86620 OMC Stern Drive 911705	2	Grommet		N/A
18-0190	GLM 22390 OMC Stern Drive 912157	1	Wiper Gasket		N/A
18-0880	GLM 33960 Mallory 9-60400 OMC Stern Drive 911878	1	Shift Cover Gasket		N/A
18-2001	GLM 86030 Johnson/Evinrude Outboard 0330137 310600 313398 317761 321463 321668 Mallory 9-76212 OMC Stern Drive 310600 313398 321463 330137	2	Oil Seal		N/A
18-4248	Johnson/Evinrude Outboard 311598 Mallory 9-60408 OMC Stern Drive 311598 3852105 Volvo Penta 3852105	2	Drain/Fill Plug Washer		N/A
18-7127	Chrysler/Force/US Marine 25-32507 25-F84305 F84304 GLM 82370 Johnson/Evinrude Outboard 313446 Mallory 9-76527 Mercruiser Stern Drive 25-32507 OMC Stern Drive 313446	1	O-Ring		N/A
18-7130	GLM 81380 Johnson/Evinrude Outboard 314728 354731 Mallory 9-76528 OMC Stern Drive 314728 354731	1	O-Ring		N/A
18-7137	GLM 45200 Johnson/Evinrude Outboard 318372 Mallory 9-76531 OMC Stern Drive 318372	1	O-Ring		N/A
18-7138	GLM 83250 Mallory 9-76533 OMC Stern Drive 318717	3	O-Ring		N/A
18-7145	GLM 81080 Johnson/Evinrude Outboard 333572 Mallory 9-76500 Mercruiser Stern Drive 25-64068 Mercury Marine 25-64068 OMC Stern Drive 333572	2	O-Ring		N/A
18-7475	GLM 86640 Johnson/Evinrude Outboard 332584 Mallory 9-76571 OMC Stern Drive 332584	5	O-Ring		N/A

Interchanges/Replaces

GLM

• 87656

Mallory

• 9-74402

OMC Stern Drive

• 439967
• 984458
• 984965
• 985613
• 987548

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0166	GLM 86620 OMC Stern Drive 911705	2	Grommet		N/A
18-0190	GLM 22390 OMC Stern Drive 912157	1	Wiper Gasket		N/A
18-0440	GLM 33970 Mallory 9-60453 OMC Stern Drive 915719	1	Water Passage Gasket		N/A
18-0880	GLM 33960 Mallory 9-60400 OMC Stern Drive 911878	1	Shift Cover Gasket		N/A
18-2002	Chrysler/Force/US Marine 26-76868 GLM 85130 Honda Outboard 91252-ZW1-003 Johnson/Evinrude Outboard 0320862 Mallory 9-76202 Mercruiser Stern Drive 26-30550 26-76868 Mercury Marine 26-30550 26-70019 26-73838 26-76868 OMC Stern Drive 320862	2	Oil Seal		N/A
18-4248	Johnson/Evinrude Outboard 311598 Mallory 9-60408 OMC Stern Drive 311598 3852105 Volvo Penta 3852105	2	Drain/Fill Plug Washer		N/A
18-7130	GLM 81380 Johnson/Evinrude Outboard 314728 354731 Mallory 9-76528 OMC Stern Drive 314728 354731	1	O-Ring		N/A
18-7137	GLM 45200 Johnson/Evinrude Outboard 318372 Mallory 9-76531 OMC Stern Drive 318372	1	O-Ring		N/A
18-7138	GLM 83250 Mallory 9-76533 OMC Stern Drive 318717	3	O-Ring		N/A
18-7145	GLM 81080 Johnson/Evinrude Outboard 333572 Mallory 9-76500 Mercruiser Stern Drive 25-64068 Mercury Marine 25-64068 OMC Stern Drive 333572	2	O-Ring		N/A
18-7475	GLM 86640 Johnson/Evinrude Outboard 332584 Mallory 9-76571 OMC Stern Drive 332584	5	O-Ring		N/A
18-7133	GLM 82400 Johnson/Evinrude Outboard 305123 321119 Mallory 9-76529 OMC Stern Drive 305123	1	O-Ring		N/A
18-0559	Johnson/Evinrude Outboard 0332585	5	Oil Seal
18-7144	GLM 82440 Johnson/Evinrude Outboard 326849 OMC Stern Drive 326849	3	O-Ring
NSS	OMC Stern Drive 0912388	1	Gasket, Shift Rod Cover	No Image	N/A

Additional Details:

• For: Mercury 20 Hp

Interchanges/Replaces

GLM

• 31200

Mercury Marine

• 27-39625

Additional Details:

• For: Mercury 20 Hp

Interchanges/Replaces

GLM

• 31200

Mercury Marine

• 27-39625

Interchanges/Replaces

GLM

• 31060

Mallory

• 9-60039

Mercruiser Stern Drive

• 27-32769

Mercury Marine

• 27-19553
• 27-32769

Additional Details:

• For: 4-Stroke O/B's 25/30/40/45/50 Hp SN 0G760300 & Up

Interchanges/Replaces

Chrysler/Force/US Marine

• 26-821310

Mercury Marine

• 26-821310

Interchanges/Replaces

Chrysler/Force/US Marine

• 27-19701

GLM

• 37470

Mallory

• 9-60027

Mercury Marine

• 27-19701
• 27-197011
• 27-8M0036675
• 27-8M4502052

Key Features:

• For filling lower units on outboards and stern drives
• Tapered/unthreaded hose end

Additional Details:

• Size: 5 Gallon (18.95L)

Use With:

• 18-9600-5: Premium Lower Unit Gear Lube (5 Gallons)(18.95L)
• 18-9620-5: Type "C" Gear Lube (5 Gallon)(18.95L)
• 18-9650-5: Hi-Performance Gear Lube (5 Gallons)(18.95L)

Interchanges/Replaces

Mallory

• 9-81004

Key Features:

• Fits: Cobra 2.3, 3.0, 3.8 & 5.8L (1986-95), V-6, V-4 (1979-Up), 60-75hp 3 cyl. 40/50hp (1989-98)

Additional Details:

• Head Style: Slot Head

Interchanges/Replaces

GLM

• 21731

Johnson/Evinrude Outboard

• 318544

Mallory

• 9-72654

OMC Stern Drive

• 318544
• 912624

Additional Details:

• Thread: M8-1.25

Use With:

• 18-4698: Drain Fill Washer
• 18-46981-9: Drain Fill Washer (Priced Per Pkg of 50)

Interchanges/Replaces

Mallory

• 9-72652

Yamaha Outboard

• 688-45341-00-00
• 688-45341-10-00
• 90340-08M02-00

Key Features:

• .010 Undersize

Interchanges/Replaces

Mercruiser Stern Drive

• 15103A4
• 23-853851
• 74313A4

Key Features:

• .020 Undersize

Interchanges/Replaces

Mercruiser Stern Drive

• 15103A3
• 23-853852
• 74314A3

Additional Details:

• Size: .010

Interchanges/Replaces

Mercruiser Stern Drive

• 23-801803

Key Features:

• Removes and installs bearings

Additional Details:

• Compatible Outboard Gear Cases: MC-I, R-MR, Alpha One, Alpha One/Gen II, and all Bravo

Interchanges/Replaces

Mercury Marine

• 91-30366T1

Additional Details:

• Material: CAST IRON
• Fits: 4.3L V-6

Use With:

• 18-1909-1: Riser

Interchanges/Replaces

GLM

• 51480

HGE

• 7656

OMC Stern Drive

• 3852338
• 3857656
• 914899

Volvo Penta

• 3847499
• 3857656

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
NSS	Volvo Penta 21238201	1	Adaptor, Manifold	No Image	N/A
NSS	Volvo Penta 3852538	1	Brass Reducer	No Image	N/A
18-8111	GLM 21887 Mercruiser Stern Drive 22-36382 35167 Mercury Marine 22-36382 Osco 1016004	1	Pipe Plug		N/A
18-7306	Volvo Penta 22274884 853548	1	Hose Clamp		N/A
16-135-0340-18		1	Shields #1350 H. D. Water Hose 3/4" x 18"		N/A

Additional Details:

• Material: CAST IRON
• For: Port & Starboard

Use With:

• 18-2909: Exhaust Manifold Gasket
• 18-1936: Riser
• 18-2909-9: Exhaust Manifold Gasket (Priced Per Pkg of 2)
• 18-2971: Exhaust Manifold Gasket

Interchanges/Replaces

GLM

• 51640

HGE

• 6894

Volvo Penta

• 856894

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2971-1	Barr VO47-835908 GLM 35080 Mallory 9-65800 Osco 35908 Volvo Penta 835908 856039 857618	1	Exhaust Manifold Gasket		N/A
18-2909	Barr MC47-27-99757 Crusader 97498 GLM 32170 Mallory 9-61421 Mercruiser Stern Drive 27-99757 OMC Stern Drive 3853412 910157 915025 Osco CS-GH Volvo Penta 3853412 856116 Yamaha Sterndrive YSC-12190-00-AC	1	Exhaust Manifold Gasket		N/A

Key Features:

• Supplied with mounting package

Additional Details:

• Fits: MCM 140 (1982 & older)

Use With:

• 18-4009: Manifold End Plate
• 18-8549: Hardware Kit [Manifold Bolts]
• 18-1971: Elbow
• 18-1972: Elbow
• 18-1975-1: Riser With Exhaust Tube
• 18-1978: Elbow
• 18-5021: End Plate
• 18-1204-1: Exhaust Manifold Mounting Gasket
• 18-2832-1: Manifold End Cap Gasket

Interchanges/Replaces

Barr

• MC 1 96705

GLM

• 51212

Mercruiser Stern Drive

• 52390A1
• 96705A1

Osco

• 6705

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-4009	Barr 160252 GLM 51010 Mallory 9-40541 Mercruiser Stern Drive 52999 60252 60252A2 Osco 60252	1	Manifold End Plate		N/A
18-1990	Barr 1-73813 GLM 51030 Mercruiser Stern Drive 48045 54870 73813 73813A1 73813F1	1	Manifold Block Off Plate		N/A
18-2833	Barr MC472799777 GLM 31520 Mallory 9-61407 Mercruiser Stern Drive 27-52076 27-99777 27-997771 27-997772 27-99777B2 Osco 52076	1	Exhaust Elbow Gasket		N/A
18-2832-1	Barr MC47-27-48043 GLM 31490 Mallory 9-61424 Mercruiser Stern Drive 27-48043 27-480431 Osco 48043	1	Manifold End Cap Gasket		N/A
18-1204-1	Barr MC472796429 GLM 33570 Mallory 9-61419 Mercruiser Stern Drive 27-96429 OMC Stern Drive 912164 Osco MO4-GH	1	Exhaust Manifold Mounting Gasket		N/A
18-0928-1	Barr MC472773814 GLM 30920 Mercruiser Stern Drive 27-73814 27-738141 27-807218	1	Gasket, Manifold End Cap		N/A
18-4257		1	Pipe Plug		N/A
18-4263	Chrysler/Force/US Marine 22-328021 22-328022 F700633 FI5810151 GLM 21893 Mercruiser Stern Drive 22-32802 22-328021 22-328022 22-841908 Mercury Marine 22-30139 22-32802 22-328021 22-328022	1	Pipe Plug		N/A

Key Features:

• 1 Piece design

Use With:

• 18-1975-1: Riser With Exhaust Tube
• 18-1204-1: Exhaust Manifold Mounting Gasket

Interchanges/Replaces

Barr

• MC 1 99798

GLM

• 51210

Marine Power

• 600333

Mercruiser Stern Drive

• 860235A04
• 99798A16
• 99798A3
• 99798A9

Osco

• 9798