4X COTTER PINS 18-3735 FITS YAMAHA OUTBOARDS 91490-40030-00 V4-V6 PROP NUT

Prop Nut Cotter Pins for Yamaha

These prop nut cotter pins for Yamaha outboards secure the propeller nut on V4 and V6 lower units, replacing OEM part number 91490-40030-00 and cross-reference 18-3735.

Overview

This 4-piece set of cotter pins for Yamaha outboards is used to lock the propeller nut on V4 and V6 outboard lower units. These cotter pins for Yamaha outboards match OEM part number 91490-40030-00 and aftermarket number 18-3735. Keeping spare cotter pins for Yamaha outboards on hand ensures the prop nut stays secured after service.

Built For Performance

• Pack of four cotter pins for one or more prop nut installations
• Replaces OEM part number 91490-40030-00
• Cross-references aftermarket number 18-3735
• Sized for Yamaha V4 and V6 outboard propeller nut retention
• Simple, secure locking method used at the prop nut
• Provides spare pins for field maintenance

Fits These Machines

• for Yamaha V4 outboard propeller shafts
• for Yamaha V6 outboard propeller shafts

On-The-Job Use

• Securing the prop nut after propeller installation on Yamaha outboards
• Replacing old cotter pins during lower unit service
• Locking the prop nut on V4 and V6 outboard lower units
• Keeping spares on board for quick prop changes

Specs At A Glance

Good To Know

Q: Are these cotter pins for Yamaha outboards a direct replacement for 91490-40030-00? A: They are a replacement for that OEM part number and also carry the 18-3735 cross-reference. Confirm the prop nut application before ordering.

Q: How do you install prop nut cotter pins? A: Align the propeller nut castellation, insert the cotter pin through the hole, and bend the ends back against the nut. This locks the nut in place on the propeller shaft.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.