Description
SIERRA Yamaha Prop Nut Kit for T50/T60 & F70-F100 Outboards – 18-73996 is a replacement propeller retaining-hardware kit for the Yamaha shaft arrangement used across specified high-thrust and midrange outboards.
The kit includes the cotter pin, prop nut, spacer and bushing, including Sierra 18-73894 and 18-73901 found separately in this batch.
Key Features
- Complete propeller retaining-hardware kit
- Fits selected Yamaha T50 and T60 high-thrust outboards
- Fits selected Yamaha 60, 70 and 90 HP applications
- Fits selected F70, F75, F80, F90 and F100 four-strokes
- Includes cotter pin, prop nut, Sierra 18-73894 spacer and 18-73901 bushing
Specifications
- Manufacturer Part Number: 18-73996
- Product Type: Propeller nut kit
- Applications: Selected Yamaha T50/T60 / 60-90 / F70-F100
- Kit Contents: 18-2380 / 18-3732 / 18-73894 / 18-73901
- OE Kit Reference: 67F-W4599-00-00
Interchange / Cross Reference
- Yamaha 67F-W4599-00-00
Confirm the Yamaha model/year and propeller hardware stack before ordering.

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