Propeller Cotter Pin 12-Pack – For Select Yamaha, Suzuki and Johnson/Evinrude Outboards
Propeller Cotter Pin 12-Pack – For Select Yamaha, Suzuki and Johnson/Evinrude Outboards is backordered and will ship as soon as it is back in stock.
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Propeller Cotter Pin 12-Pack – For Select Yamaha, Suzuki and Johnso...
Propeller Cotter Pin 12-Pack – For Select Yamaha, Suzuki and Johnson/Evinrude Outboards is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket propeller cotter pin is intended to secure the propeller nut on compatible Yamaha, Suzuki, and Johnson/Evinrude outboard applications. The pin is made from 304 stainless steel for corrosion resistance in marine environments and is supplied in a 12-piece package for installation and replacement spares.
Compatibility depends on the exact outboard model, year, shaft assembly, and application. Before ordering, compare the part number in your service manual or on the original component with the reference numbers listed below.
- Designed for use with compatible outboard propeller shaft and castle-nut assemblies.
- 304 stainless-steel construction for marine-use corrosion resistance.
- Use a new cotter pin whenever the propeller is removed and reinstalled.
- Package includes 12 propeller cotter pins.
Part Number References
The following OEM and aftermarket numbers are reference numbers associated with this replacement pin. A reference number alone does not confirm fitment for every model or year.
| Brand | Part Number |
|---|---|
| Suzuki | 09204-03001 |
| Suzuki | 09204-03003 |
| Suzuki | 09204-03004 |
| Yamaha | 91401-40025-00 |
| Yamaha | 91401-40028-00 |
| Yamaha | 91401-40030-00 |
| Johnson/Evinrude | 5030087 |
| Mallory | 9-73912 |
Engine and Model Compatibility
This pin may be used on select outboard applications across the ranges shown below. The tables are application guides rather than universal fitment lists. Confirm the exact model and part number before installation.
Yamaha Outboards
| Brand | Model | Rated HP | Stroke | Reference Part No. |
|---|---|---|---|---|
| Yamaha | Various models | 25 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 40 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 50 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 60 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 90 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 115 | 2-Stroke and 4-Stroke | 91401-40025-00 |
| Yamaha | Various models | 150 | 2-Stroke and 4-Stroke | 91401-40025-00 |
Suzuki Outboards
| Brand | Model | Rated HP | Stroke | Reference Part No. |
|---|---|---|---|---|
| Suzuki | Various models | 2.5 | 4-Stroke | 09204-03001 |
| Suzuki | Various models | 4–9.9 | 4-Stroke | 09204-03001 |
| Suzuki | Various models | 14–20 | 2-Stroke and 4-Stroke | 09204-03001 |
| Suzuki | Various models | 25–30 | 2-Stroke and 4-Stroke | 09204-03001 |
| Suzuki | Various models | 40–60 | 2-Stroke and 4-Stroke | 09204-03001 |
| Suzuki | Various models | 65–90 | 2-Stroke and 4-Stroke | 09204-03001 |
| Suzuki | Various models | 100–150 | 4-Stroke | 09204-03001 |
| Suzuki | Various models | 175–300 | 4-Stroke | 09204-03001 |
Johnson/Evinrude Outboards
| Brand | Model | Rated HP | Year | Reference Part No. | Application Note |
|---|---|---|---|---|---|
| Johnson | 90 | 90 | 2006 | 5030087 | Listed application reference |
| Johnson/Evinrude | Various models | Not specified | Not specified | 5030087 | Confirm the exact model before purchase |
Technical Specifications
- Product Type
- Outboard propeller cotter pin
- Material
- 304 stainless steel
- Approximate Dimensions
- 4 mm x 25 mm
- Application
- Secures a compatible outboard propeller nut and shaft assembly
- Color
- Silver/metallic
- Quantity Per Package
- 12 pieces
What’s in the Box
- 12 x propeller cotter pins
Installation Notes
- Turn the engine off and place the gear selector in neutral. Follow the safety instructions for your outboard.
- Remove the old cotter pin from the propeller castle nut with pliers.
- Remove the propeller nut and washers as required by the manufacturer’s service procedure.
- Inspect the propeller shaft, nut, washer, and propeller for wear or damage.
- Reinstall the propeller, washers, and castle nut according to the service manual.
- Tighten the nut to the manufacturer’s specified torque.
- Align a castle-nut slot with the hole in the propeller shaft without loosening the nut to achieve alignment.
- Insert a new cotter pin through the aligned hole.
- Bend the ends of the pin around the nut to retain it securely.
Installation procedures and torque specifications vary by outboard model. Use the applicable service manual when servicing the propeller assembly.
Frequently Asked Questions
Will this fit my specific outboard?
Fitment depends on the exact model, year, shaft assembly, and applicable part number. Match the original part or service-manual reference with the numbers listed on this page before ordering.
Should I reuse the old cotter pin?
No. Replace the cotter pin whenever it has been removed. Bending can fatigue the metal, and a new pin provides the intended retention of the propeller nut.
What are the signs that a cotter pin needs replacement?
Replace a pin that is bent, cracked, corroded, loose, or difficult to remove. A damaged retaining pin can allow the propeller nut to loosen.
What tools are needed?
Pliers are typically used to remove and bend the cotter pin. A suitable wrench or socket is needed for the propeller nut, and the manufacturer’s specified torque procedure should be followed.
Is this an OEM part?
This is an aftermarket replacement part. The OEM and aftermarket numbers shown are reference numbers for fitment comparison and should be verified against the exact application.
Can this pin be used for other applications?
Do not use it for another application unless the dimensions, material, load requirements, and retaining procedure are known to match. It is intended for compatible outboard propeller assemblies.
Safety and Important Information
- Verify the part number, dimensions, and application before purchase and installation.
- Do not operate the outboard with a missing, damaged, or improperly installed propeller retaining pin.
- Follow the manufacturer’s service manual for propeller removal, installation, torque, and safety procedures.
- This is an aftermarket replacement, not an OEM component.
About Sea Sierra
- Marine Replacement Parts — Replacement components for common marine maintenance applications.
- Application-Focused Information — Use the listed reference numbers and model details to help verify compatibility.
- Replacement Convenience — A 12-piece package provides new pins for multiple service intervals or spare use.
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