Description
Nothing brings your tractor work to a halt faster than a missing or broken cotter pin when you’re trying to hook up an implement or secure a critical connection. This 3/8 inch by 4 inch cotter pin is one of those small but mighty parts that keeps everything connected and working safely. When pins get lost in tall grass, bent from wear, or just plain give up after years of service, having the right replacement on hand saves your day and keeps you productive.
What You’re Getting
- Heavy-duty construction that won’t bend under normal working loads or vibration
- Proper 3/8 inch diameter and 4 inch length for secure fit in standard agricultural applications
- Corrosion-resistant finish that holds up to weather and farm chemicals
- Split design allows easy installation and removal when maintenance time comes
Built for Real Farm Work
This cotter pin works across a wide range of agricultural applications where you need to secure pins, bolts, and connections on tractors, implements, and three-point hitch systems. You’ll find this size commonly used on everything from utility tractors to larger row-crop machines, securing lift arms, top links, clevis pins, and other critical connection points that take a beating during field operations.
Made to Last
Farm equipment puts cotter pins through constant stress cycles, dirt, moisture, and the general punishment that comes with agricultural work. This pin is made from quality steel that resists bending and corrosion, so it keeps doing its job season after season without failing when you need it most.
Good to Know
Installation is straightforward – just slide the pin through the hole and spread the legs to secure. Keep a few extras in your toolbox because cotter pins have a way of disappearing just when you need them. A light coating of grease on the pin helps prevent corrosion and makes removal easier down the road.


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