Key Features:

• Standard rotation (RH)

Additional Details:

• Teeth: 13-21
• Fits: Alpha One Gen II (except 2.00 & 2.40 ratio) (s/n 0F680000 & Up)

Interchanges/Replaces

Mercruiser Stern Drive

• 43-828072A3
• 43-878087A2

Additional Details:

• Length: 3"
• Width: 3.780"

Interchanges/Replaces

Mallory

• 9-42800

Mercruiser Stern Drive

• 60930

Key Features:

• Link Belt
• Greasable
• Fits all OMC Cobra & King Cobra drives

Additional Details:

• Fits: Mercruiser- 120hp/140hp (2791957-6225576)(With Gimbal Trim Sender), 165hp (2763442 & Up)
• Fits: 225S (3856268-4200499), 228hp (4782330 & Up)
• Fits: 233hp (4200500 & Up), 250hp (4791300 & Up)

Interchanges/Replaces

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

Key Features:

• Greasable

Additional Details:

• Fits: All Bravos, Alpha One Gen II (1998 & Up)

Interchanges/Replaces

Mallory

• 9-72412

Mercruiser Stern Drive

• 30-862540A04
• 30-862540A3
• 30-862540T1
• 30-879194A01

Additional Details:

• For: Mercruiser Vazer

Interchanges/Replaces

Chrysler/Force/US Marine

• 31-30894A1

GLM

• 21820

Honda Outboard

• 91051-ZW1-003

Mallory

• 9-75118

Mercruiser Stern Drive

• 31-30894A1

Mercury Marine

• 31-30894A1

Additional Details:

• Fits: MR, Alpha One & Gen II

Interchanges/Replaces

Chrysler/Force/US Marine

• 31-42647A1
• 31-F694057

GLM

• 21610

Johnson/Evinrude Outboard

• 387817
• 5007751

Mallory

• 9-75121

Mercruiser Stern Drive

• 31-42647
• 31-42647A1

Mercury Marine

• 31-42647A1

OMC Stern Drive

• 387817

Additional Details:

• For: MR/Alpha I

Interchanges/Replaces

GLM

• 25125

Mallory

• 9-79200

Mercruiser Stern Drive

• 43-803091T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-1117	Chrysler/Force/US Marine 31-42647A1 31-F694057 GLM 21610 Johnson/Evinrude Outboard 387817 5007751 Mallory 9-75121 Mercruiser Stern Drive 31-42647 31-42647A1 Mercury Marine 31-42647A1 OMC Stern Drive 387817	1	Pinion Bearing		N/A
18-1143	GLM 21580 Mallory 9-75107 Mercruiser Stern Drive 31-36387A1 Mercury Marine 31-36387A1	1	Tapered Roller Bearing		N/A
18-1155	GLM 21620 Mallory 9-75114 Mercruiser Stern Drive 30-17927 30-35914 30-88957 30-88957A1 30-88957T Mercury Marine 30-17927 30-35914 30-88957 30-88957A1 30-88957T Mercury Race Outboard 30-35914 30-88957 30-88957A1 30-88957T	1	Ball Bearing		N/A
18-1158	Chrysler/Force/US Marine 31-30956 31-F523058 GLM 11410 Honda Outboard 91053-ZW1-003 Johnson/Evinrude Outboard 387247 Mallory 9-75112 Mercruiser Stern Drive 31-30956 31-30956T Mercury Marine 31-30956 31-30956T OMC Stern Drive 387247	1	Carrier Bearing		N/A
18-2202	GLM 11060 Mallory 9-73474 Mercruiser Stern Drive 52-66063 52-824112 52-853594 52-853594T Mercury Marine 52-824112	1	Sliding Clutch		N/A
18-2285	GLM 23220 Mercruiser Stern Drive 15-35931A1 15-47397A1 Mercury Marine 15-47397A1	1	Shim Set		N/A
18-2294	GLM 23210 Mercruiser Stern Drive 15-42637A1 Mercury Marine 15-42637A1 15-8M0063267	1	Shim Kit		N/A
18-2298	GLM 11381 Mallory 9-72640 9-72643 Mercruiser Stern Drive 14-17460 14-18323 Mercury Marine 14-17460 14-18323	1	Tab Washer		N/A
18-2299	GLM 11380 Mallory 9-72641 Mercruiser Stern Drive 14-52833 14-79447 Mercury Marine 14-79447	1	Tab Washer		N/A
18-2343	Chrysler/Force/US Marine 12-92721 12-F694186 GLM 32800 Mallory 9-78108 Mercruiser Stern Drive 12-92721 Mercury Marine 12-92721	1	Pinion Nut Washer		N/A
18-2652	GLM 87510 Mallory 9-74304 Mercruiser Stern Drive 26-33144A1 26-33144A2 26-89238A1	1	Lower Unit Seal Kit		N/A
18-3719	Chrysler/Force/US Marine 11-35921 11-826375 11-F694188 GLM 11190 Johnson/Evinrude Outboard 314730 Mallory 9-78103 Mercruiser Stern Drive 11-35921 Mercury Marine 11-35921 11-47411 11-826375 OMC Stern Drive 314730	1	Pinion Nut		N/A
18-2206-1		1	Gear Set		N/A

Key Features:

• Recommended for all general marine applications requiring a GL-5 class lubricant.
• Ideal for replacing all old hypoid 90 application needs.
• Formulated for use in freshwater or saltwater conditions and all standard marine applications.
• Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

• Color: Amber
• Weight: 80W-90

Interchanges/Replaces

Mallory

• 9-82400

Key Features:

• Recommended for all general marine applications requiring a GL-5 class lubricant.
• Ideal for replacing all old hypoid 90 application needs.
• Formulated for use in freshwater or saltwater conditions and all standard marine applications.
• Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

• Color: Amber
• Weight: 80W-90

Interchanges/Replaces

Mallory

• 9-82401

Mercury Marine

• 92-858058Q01

Key Features:

• Recommended for all general marine applications requiring a GL-5 class lubricant.
• Ideal for replacing all old hypoid 90 application needs.
• Formulated for use in freshwater or saltwater conditions and all standard marine applications.
• Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

• Color: Amber
• Weight: 80W-90

Use With:

• 18-9788: Lube Pump

Interchanges/Replaces

Mallory

• 9-82402

Mercury Marine

• 92-858007Q01

Key Features:

• Synthetic blended marine formulation reduces operating friction for increased performance
• Protects gears, bearings and other gear case components
• For use in high performance and high load operating conditions in both outboard and I/O lower units
• Designed to surpass the performance of the O.E. Hi-Performance gear lubricants
• GL-5 Rated

Additional Details:

• Color: Blue-Green
• Weight: 80W-90

Interchanges/Replaces

Mallory

• 9-82500