Drive System Parts - Upper Unit Drive Parts

Additional Details:

• Fits: MC-I, R, MR, Alpha One & Gen II (s/n 0F094774 & Below)

Interchanges/Replaces

GLM

• 87561

Mallory

• 9-72161

Mercruiser Stern Drive

• 23-45588
• 23-79373
• 23-79373A1
• 23-805041A2

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-2054	Chrysler/Force/US Marine 26-816464 1 GLM 85581 Honda Outboard 91253-ZW1-003 Mallory 9-76116 Mercruiser Stern Drive 26-8164641 Mercury Marine 26-76384 26-816464 26-8164641	2	Oil Seal

Additional Details:

• Fits: MC-I, R, MR & Alpha One

Interchanges/Replaces

GLM

• 21420

Mallory

• 9-72475

Mercruiser Stern Drive

• 45589A1
• 45589A3

Additional Details:

• For: Alpha One Gen II

Interchanges/Replaces

GLM

• 21031

Mallory

• 9-72477

Mercruiser Stern Drive

• 815919A1
• 8M0127949