Genuine Suzuki Marine Outboard Propeller Cotter Pin

Part Number: 09204-03003

Vital safety hardware component designed to lock the propeller castle nut securely onto the prop shaft, preventing the propeller from backing off, spinning free, or becoming lost underwater.

Technical Specifications

• Component Type: Cotter Pin (Split Pin)
• Dimensions: 3.6mm Diameter x 25mm Length (D:3.6, L:25)
• Material: Marine-grade, corrosion-resistant stainless steel alloy
• Engine Compatibility: Fits Suzuki DF40 to DF350 outboard models across all manufacturing years. Also fits smaller portable models including the DF2.5, DF4A, and DF6A.

Maintenance Advisory

Suzuki factory service manuals strictly recommend replacing this cotter pin every time the propeller nut is removed. Bending and unbending a cotter pin fatigues the metal, causing micro-fractures that can lead to unexpected shear failure under high RPM forces or engine vibration. Do not re-use old pins.

Also Available

Suzuki Propeller Nut Kit (Type V) — Part 57630-94500 — bundles this cotter pin with the 18mm brass castle nut, a flat washer, and a propeller spacer for a complete hardware replacement.

Technical Reference

Torque specifications, propeller hardware diagrams, and service interval guidance are available in our Technical Reference pages.