Key Features:

• Installs exhaust bellows on MC-I, R-MR, Alpha One, Bravo One and Two and Blackhawk drive units

Interchanges/Replaces

Mallory

• 9-79811

Mercury Marine

• 91-45497A1

Additional Details:

• Fits: 888 s/n 3784375 & Up
• Fits: #1 Units s/n 3469428 & Up

Interchanges/Replaces

GLM

• 11060

Mallory

• 9-73474

Mercruiser Stern Drive

• 52-66063
• 52-824112
• 52-853594
• 52-853594T

Mercury Marine

• 52-824112

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

• 91-37292

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

• 91-52394

Key Features:

• Installs needle bearings in Bravo One and Two and TR drive unit bearing carrier

Interchanges/Replaces

Mercury Marine

• 91-55918

Interchanges/Replaces

Racor

• RK22628

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