Shopping Cart

Your cart is empty.

Your cart is empty.

CURT 25011 Trailer Coupler Pin, 5/16-Inch Diameter x 3-Inch Long

4.7 (12) Write Review
Free shipping on orders over $29.99

$4.59

$ 1 .99 $1.99

In Stock

About this item

  • VERSATILE. The 5/16-inch diameter and 3-inch length of this coupler safety pin make it highly versatile to fit a wide variety of trailer couplers. It can also be used for a trailer jack wheel, pintle hook and more
  • SECURE. This coupler safety pin provides a reliable solution for keeping your trailer coupler latch engaged with the trailer ball. The solid pin offers ample strength while the retainer clip ensures the pin will not vibrate or rattle free
  • EASY TO USE. The square retainer clip of this trailer coupler pin is made with spring steel, making the clip semi-flexible for easy operation. With the safety pin inserted in the coupler latch, the square retainer easily clips on to the end of the pin
  • CORROSION-RESISTANT. Protected by a durable zinc-plated finish, this coupler safety pin maintains excellent resistance to rust and corrosion for longevity and hassle-free use every time
  • HIGH-STRENGTH. The 5/16-inch trailer coupler pin is made out of solid steel for reliable strength, safety on the road and confidence with every mile of your adventure


CURT safety pins go beyond the simple function of keeping your coupler latch secure. They are constructed from quality materials and have a universal design that allows them be used for a variety of purposes in your towing setup. CURT safety pins are made from solid steel to provide more than enough strength to keep your trailer coupler latched down tight. The zinc plating that we use to finish our safety pins offers excellent protection against rust and corrosion. This is necessary for any trailer because of its frequent exposure to the elements. The user-friendly design of our safety pins allows them to be easily handled while maintaining effective security. This safety pin has a pin diameter of 5/16". CURT safety pins can also be purchased with a 12" chain attachment to mount onto your trailer coupler and prevent the safety pin from being misplaced. Use CURT safety pins for securing trailer couplers, jacks, caster wheels and more. When you couple your trailer to your vehicle, nuts and bolts just do not cut it. Secure your towing equipment right with a safety pin from CURT.


Tom
September 1, 2025
Works great
Bob
August 15, 2025
Exact replacement for use on Haulmark 7x14 utility trailer. Nice quality.
ghost
August 5, 2025
Gets it done
Ron Kerns
July 25, 2025
Works great with my trailer that I hook to my 4 wheeler.
GRANDPA - S
June 26, 2025
If I need more I’ll buy them again.
FilmComposer
June 6, 2025
Great price, stellar item. Finally measured it right and bought this as a backup as I’ve definitely almost left my main one on the bumper before.
Matt
May 10, 2025
I bought it for my trailer not looking at what size hole it would go into. It is the wrong size. That was my fault so I won't return it. I tested it for myself by trying to bend it and cutting it with wire cutters. Passed my tests so I will use it when I buy or repair a trailer (if needed) sometime down the road.
Albert
February 26, 2025
Works as intended.
Harry D.
February 17, 2025
What’s too review it’s a pin
Eric Godbout
January 6, 2025
La qualité est au rendez vous et la livraison rapide
Blackhawks
December 18, 2024
Worked as expected
DANIEL AVELLANEDA
December 11, 2024
Excellent