Sierra Mercury Sterndrive & Outboard Driveshaft Roller Bearing - 18-1143

The Sierra Mercury Sterndrive & Outboard Driveshaft Roller Bearing - 18-1143 is a replacement marine propeller for the applications shown in the product information below.

Product information

• 18-1143 - Mercury Sterndrive & Outboard Driveshaft Roller Bearing
• 18-4443 is a bearing cup cone used in various Mercruiser sterndrive models. This component is essential for supporting the upper driveshaft, ensuring smooth operation and longevity of the sterndrive system.
• Suits Mercruiser Sterndrive Models
• Alpha One, Alpha One Gen II, MR, R, MR/Alpha One Gen II (serial numbers 0K999999 and below), 120, 140, 160, 175, 200, 225, 233, 250, 260, 470, 485, 888, 898
• Replaces: GLM
• 21580
• 9-75107
• 31-36387A1
• 31-8M0146566

Before ordering

Please compare the listed specifications and part number with your existing component. If you need help confirming compatibility, contact Jet Ski Parts Warehouse with your make, model, year and engine details.