Mercury Propeller Nut - Fits Force 60, 85–150 HP Single Exhaust Applications

This Mercury propeller nut is designed for select Force 60, 85, and 150 horsepower single-exhaust outboard applications. It is used to secure the propeller hardware on compatible gearcases and should be matched to the correct thrust washer, tab washer, cotter pin, and prop hardware setup for your specific engine.

A Mercury 150 prop nut commonly uses a 1-1/16 inch socket, though exact fitment can vary by gearcase and prop hardware kit. Use the correct thrust washer, tab washer or cotter pin setup, and torque specification for the specific Mercury 150 model.

Fitment Notes

• Fits select Force 60, 85, and 150 HP single-exhaust outboards
• Used as part of the propeller mounting hardware assembly
• Socket size may vary, but many Mercury 150 prop nut applications use a 1-1/16 inch socket
• Always confirm compatibility by engine model, serial number, gearcase style, and propeller hardware setup

Installation Reminder

When replacing a prop nut, inspect the propeller shaft, thrust washer, spacer, tab washer, cotter pin, and related hardware for wear or damage. Reinstall the propeller using the correct Mercury or Force service procedure and torque specification for your specific outboard model.