Thrust Washer And Prop Nut Kit For Mercury Outboard Motors 9.9HP To 25HP Durable Marine Grade Replacement Includes 858498 8M0027793 18 3703 With 10 Tooth Spline And 3 Inch Gearcase For Smooth Prop Shaft Performance

Outboard Thrust Washer & Prop Nut Kit 9.9 to 25HP
✔️ Brass thrust washer + 10-tooth spline nut for 3 inch gearcase

This replacement kit provides a brass thrust washer and a 10-tooth spline prop nut for outboard prop shafts. It’s designed for Mercury outboard motors in the 9.9HP to 25HP range and helps maintain smooth shaft operation and proper gearcase spacing.

✅ Fit Part Numbers: 858498 8M0027793 11-88228 18-3703
✅ Engine compatibility: 9.9HP to 25HP
✅ Includes: thrust washer and prop nut
✅ Material: brass, marine-grade

💡 What is a thrust washer and prop nut kit used for in outboard motors, and how can I tell it fits my engine? This handy kit helps secure the prop shaft and maintain correct clearance for smooth operation. - compatibility with 9.9-25HP outboard engines - includes brass thrust washer and 10-tooth spline prop nut - verify fit by cross-checking part numbers and gearcase size