Additional Details:

• For: Merc I and Alpha I drives
• Models: I, 1A, 1B, 1C, 1CEZ, 120, 140, 160, 165, 888, 898, 228, 225-S, 233, 250, 260, 470,485, R, MR, Alpha

Interchanges/Replaces

GLM

• 12200

Mallory

• 9-78139

Mercruiser Stern Drive

• 32489
• 32489A2
• 42724A3
• 54235A2

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0521	GLM 85150 Mercruiser Stern Drive 26-36557 Mercury Marine 26-36557	1	Water Tube Rubber Seal		N/A
18-0894	GLM 31150 Mallory 9-60037 Mercruiser Stern Drive 27-55810 27-558101	1	Water Pocket Cover Gasket		N/A
18-3229	Chrysler/Force/US Marine 10-28668 GLM 22440 Mallory 9-78127 Mercruiser Stern Drive 10-28668 Mercury Marine 10-28668	4	Water Pocket Screw
18-3220	GLM 12202 Mallory 9-78140 Mercruiser Stern Drive 32-54236	1	Water Tube		N/A