Gear Set 

Additional Details:

• Drive Gear: 22 Teeth
• Driven Gear: 20 Teeth
• Ratio: 1.5:1
• For: most V-8 drives & Gen II (s/n 0K999999 & Below)

Interchanges/Replaces

GLM

• 11210

Mercruiser Stern Drive

• 43-18410A2
• 43-18411A2
• 43-59832A2
• 43-59832A4

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-1142	GLM 21560 Mercruiser Stern Drive 31-32573A1	1	Upper Pinion Bearing		N/A