Upper Unit Gear Repair Kit 

Additional Details:

• Ratio: 1.47:1
• For: Gen II (1998 & Up) (s/n 0L100040 & Up)

Interchanges/Replaces

Mercruiser Stern Drive

• 43-803103T1

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-6351	Mercruiser Stern Drive 43-853641A2	1	Upper Unit Gear Set		N/A
18-1179	GLM 21511 Mallory 9-75106 Mercruiser Stern Drive 31-32575A1 31-32575T1 Mercury Marine 31-32575A1 31-32575T1	1	Tapered Roller Bearing		N/A
18-1156	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	1	Foward Gear Bearing		N/A
18-3712	GLM 28330 Mallory 9-78107 Mercruiser Stern Drive 12-45810	1	Carrier Nut Washer		N/A
18-3713	Chrysler/Force/US Marine 11-F1920 F1348 F1881 GLM 28360 Mallory 9-78117 Mercruiser Stern Drive 11-22339 11-36084 11-97522 Mercury Marine 11-22339	1	Lock Nut		N/A
18-2644	GLM 87501 Mallory 9-74302 Mercruiser Stern Drive 26-88397A1	1	Upper Unit Seal Kit		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
18-2282	GLM 23261 Mercruiser Stern Drive 15-32563A1 Mercury Marine 15-32563A1	1	Shim Set		N/A
18-2292	GLM 23280 Mercruiser Stern Drive 15-35980A1	1	Shim Kit		N/A
18-2293	GLM 23270 Mercruiser Stern Drive 15-23097A1 15-36178A02 15-36178A1 15-39899A1	1	Shim Kit		N/A
NSS	Mercruiser Stern Drive 25-853649	1	Spacer, Bearing Cup	No Image	N/A