Choosing the best shear pin for your boat motor is essential to safeguard your propeller and engine from damage due to sudden impacts or debris. Below is a table summarizing top quality shear pins selected based on compatibility, durability, and customer value for common outboard motors such as Mercury, Yamaha, and Minn Kota.
| Product | Brand | Compatibility | Key Feature |
|---|---|---|---|
| Uanofcn 1795372 Propeller Shear Pin Kit | UANOFCN | Mercury, Nissan, Tohatsu 2.2 to 3.5 HP | Includes split pin key; multi-model fit |
| Yamaha 6E0-45943-00-EL Old Shear Pin Propeller | ITACO | Yamaha 4HP, 5HP | 100% Taiwan-made; OEM matched |
| SouthMarine Yamaha Old Shear Pin 6E0-45941-00-EL | SouthMarine | Yamaha 4HP, 5HP | Compatible with 3×7 1/2×8″ props |
| EUSTREER Motor Prop Pins 2092600 (8 Pack) | EUSTREER | Minn Kota MKP series | Stainless steel; easy installation |
| Mercury Mercruiser Shear Pin Kit 17-815111Q02 | MERCURY | Mercury & Mercruiser models | Factory new replacement pin kit |
Uanofcn Propeller Shear Pin with Split Pin Key for Mercury and Nissan

The Uanofcn 1795372 Shear Pin Kit is designed specifically for Mercury Mariner outboard models ranging from 2.2 HP to 3.5 HP as well as Nissan and Tohatsu MFS series. This kit includes a shear pin and a split pin key, ensuring secure propeller attachment and reliable shear off during impact.
This kit fits both 2-stroke and 4-stroke engines such as Mercury 2.2HP, 2.5HP, 3.3HP 2-stroke and 2.5HP, 3.5HP 4-stroke engines. Its multi-model compatibility makes it a versatile option for boaters with smaller horsepower engines.
Crafted for durability and reliable performance, this shear pin kit helps protect your motor from costly damage while maintaining smooth propeller operation. The split pin key aids in easy installation and propeller security.
Yamaha Old Shear Pin Type Propeller 6E0-45943-00-EL for 4HP-5HP

This Boat Motor Old Shear Pin Type Propeller by ITACO is a replacement part made in Taiwan, crafted for Yamaha outboard engines 4HP and 5HP, both 2-stroke and 4-stroke variants. The OEM part number 6E0-45943-00-EL ensures precise fit.
Ideal for restoring older Yamaha boat motors, the propeller provides traditional shear pin protection to absorb impacts and prevent damage to the boat motor’s lower unit. Its durable construction enhances longevity for extended boating seasons.
Customers should verify the OEM part number before purchase to confirm compatibility. This product offers a reliable option for boat owners who want an authentic replacement propeller with shear pin functionality.
SouthMarine Old Shear Pin Propeller for Yamaha 4HP & 5HP

The SouthMarine 6E0-45941-00-EL shear pin propeller suits Yamaha 4HP and 5HP outboard motors equipped with 3X7 1/2X8″ propellers. This old shear pin type propeller replaces OEM part #6E0-45941-00-EL and fits both 2-stroke and 4-stroke engines.
Made to high standards, it ensures optimum performance and reliable propeller shear pin protection. Suitable for boaters who need an OEM matched replacement for their Yamaha outboard propeller, it helps prevent engine damage caused by propeller strikes.
This propeller’s compatibility with older Yamaha motor models makes it an essential replacement for maintaining smooth and safe operation on the water.
EUSTREER 8 Pcs Motor Prop Pins for Minn Kota Motors

The EUSTREER Motor Prop Pins 2092600 kit contains 8 stainless steel shear pins compatible with multiple Minn Kota motor models including MKP-2, MKP-3, MKP-6, MKP-7, MKP-25, and MKP-37. These pins are made from high quality metal offering exceptional corrosion resistance and durability.
The pin design ensures quick and easy installation without requiring additional tools, making them perfect for regular maintenance or emergency replacements. This cost-effective pack is suitable for frequent use by anglers relying on Minn Kota trolling motors.
These shear pins maintain proper propeller function, safeguarding against damage from underwater obstacles, making them a reliable and versatile choice for Minn Kota motor users.
Mercury Mercruiser Shear Pin Kit 17-815111Q02

This Mercury Mercruiser Shear Pin Kit (model 17-815111Q02) is a factory new kit designed for Mercury and Mercruiser boat motors. It serves as an essential safety component that helps protect your lower unit by shearing off when propeller damage risk occurs.
With OEM-quality assurance, this kit matches original specifications for reliability and longevity. It’s an excellent replacement pin set for Mercury owners seeking genuine parts backed by the manufacturer.
Quick installation and durable construction make it a trustworthy choice to maintain your motor’s performance while avoiding costly repairs.
Buying Guide for Shear Pins for Boat Motors
When selecting the best shear pin for your boat motor, here are crucial factors to consider ensuring optimal compatibility and protection:
Compatibility With Motor Model and Propeller
The most important aspect is that the shear pin matches your motor’s horsepower rating and OEM part number. Shear pins are designed for specific motor models and prop sizes, such as Mercury 2.2-3.5 HP, Yamaha 4-5 HP, or Minn Kota MKP series. Verify the manufacturer specifications before purchasing.
Material Quality and Durability
Shear pins must be made from high-quality steel or stainless steel to resist rust, corrosion, and wear. Stainless steel pins last longer in marine environments and withstand impact better, ensuring consistent protection and fewer replacements.
Shear Strength and Reliability
The pin should have precise shear strength to break under excessive load but remain intact during normal operation. This prevents damage to costly motor components while maintaining propeller security. Choosing reputable brands or OEM parts can provide reliable shear strength.
Ease of Installation and Maintenance
Look for shear pins that are easy to install without specialized tools. Kits often include split pins or key components to secure the propeller safely. Having multiple pins per pack benefits regular maintenance and quick replacements during fishing trips or boating excursions.
Price and Pack Quantity
While price is important, prioritize quality and compatibility to avoid frequent failures or damage. Multi-pack kits offer better value for frequent shear pin changes, especially for anglers and frequent boaters.
Customer Reviews and Brand Reputation
Review feedback from other boaters helps confirm product reliability and compatibility. Trusted brands like Mercury, Minn Kota, and reputable Amazon sellers often provide quality assurance and warranty options.
In summary, the right shear pin ensures your boat motor propeller is protected from impact damage and prolongs engine life. Always confirm model compatibility, choose durable materials, and select kits offering ease of use for best performance on the water.