Qiclear Propeller Installation Hardware Kit for Yamaha 150-300hp – 15-spline 4-3/4" Gearcase OEM-style Set

Qiclear propeller installation hardware kit for Yamaha 150–300hp provides OEM-style thrust washer, spacer, washer, nut and cotter pin engineered to match 15-spline, 4-3/4" gearcase propellers.

Replace worn or missing propeller hardware with a complete set designed for Yamaha outboards rated 150hp through 300hp. These kits are built to the same configuration as the original equipment (Ref Parts No. 6E5-45987-01) so the parts stack, fit and secure 15-spline propellers on a 4-3/4" gearcase. Each kit contains the components shown in the product photos and is quality-checked to ensure compatibility with the listed engine models.

How do I know this kit fits my Yamaha outboard?

Check your propeller spline count and gearcase diameter before purchase. This kit is specifically matched to 15-spline propellers and a 4-3/4" gearcase; it also corresponds to Yamaha part reference 6E5-45987-01. If your engine is one of the listed models, the components should align with factory dimensions.

• Fits Yamaha 150, 175, 200, 220, 225, 250 and 300hp outboards
• Compatible with 15-spline propellers
• Designed for 4-3/4" gearcase applications
• Matches OEM reference 6E5-45987-01

What parts are included and how do they match the original hardware?

The kit ship contains the thrust washer, spacer, washer, nut and a cotter pin—everything needed to mount a propeller securely. Each piece is manufactured to mirror the original geometry so the prop slides on, the spacer locates correctly, and the nut torque and pin retention function as intended.

• Thrust washer to maintain correct prop clearance
• Spacer for proper shaft engagement depth
• Washer and nut sized to OEM fitment
• Cotter pin for positive mechanical retention

Are these parts durable and safe for regular marine use?

The components are produced under strict quality control to provide consistent fit and function comparable to OEM pieces. While materials and corrosion resistance depend on the batch and environment, the kit is intended to replace worn hardware and restore safe propeller mounting when installed correctly.

• Manufactured to match original shape and tolerances
• Quality-inspected to ensure correct fit
• Sold as shown—no extra tools included
• Recommended to inspect and replace if rust or deformation is present

How do I install this hardware kit and what should I watch for?

Installation follows standard propeller mounting procedures: slide the prop onto the shaft, add spacer and thrust washer in sequence, torque the nut to manufacturer spec, and secure with the cotter pin. Confirm shaft, prop, and hardware are clean and undamaged before assembly to prevent misalignment or premature wear.

• Clean shaft splines and prop bore before assembly
• Use manufacturer torque specs for the nut
• Fold cotter pin properly to prevent loosening
• Inspect installed clearance and spin for smooth operation

Who this is for: Boaters, marine technicians and DIY owners of Yamaha outboards 150–300hp who need a full replacement hardware set to mount 15-spline propellers on a 4-3/4" gearcase. Choose this Qiclear kit when the original thrust washer, spacer, nut, washer or cotter pin are lost, damaged, or show signs of wear—especially before a season of heavy use or after impact.