Mercury Outboard Prop Shaft Nut Kit With Thrust Washer And Tab Washer For 25 HP Through 70 HP Engines Easy Install 13 Tooth Spline Fits 73345 92647M 73345A1 18 4233 76281 69578Q1 18 3704

Outboard prop shaft nut kit for 25-70HP engines
✔️ Includes thrust washer, tab washer, 13-tooth nut, brass.

This prop shaft nut kit fits Mercury outboard engines in the 25-70HP range and includes a 13-tooth spline nut, thrust washer, and tab washer to secure the propeller on the gearcase.

✅ 13-tooth spline nut for 3-1/4 in (82.6 mm) gearcase
✅ Includes thrust washer 18-4233 and tab washer 76281
✅ Part numbers included: 73345, 92647M, 73345A1, 18-4233, 76281, 69578Q1, 18-3704
✅ Brass color finish for corrosion resistance

💡 What is a prop shaft nut kit used for in outboard motors?

Handy solution for quick prop maintenance and secure mounting on the gearcase.

- Easy installation for ongoing outboard upkeep
- Includes nut with 13-tooth spline and washers
- Helps prevent prop loosening and water intrusion
- Designed for Mercury 25-70HP engines and listed part numbers