Shopping Cart

Your cart is empty.

Your cart is empty.

2 Pack 3/8x4inch Trailer Coupler Pin, Heavy Duty Hitch Pin Towing Hitch Accessories Safety Wire Lock Pin Clip for Towing, Secure PTO Shaft, Trailers, RVs, Boats, and Farm Equipment

Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock

1.Model:Sskj-10-100-s


About this item

  • Heavy-Duty Strength for Tough Jobs: Built from premium carbon steel and finished with a protective zinc coating, these 3/8"x4" coupler pins deliver exceptional strength and durability, ideal for demanding towing and fastening tasks.
  • Reliable Wire Lock Mechanism: Featuring a secure wire lock design, these pins ensure a tight and stable connection, preventing accidental disconnection even on uneven terrain.
  • Rust-Resistant for All-Weather Use: The corrosion-resistant zinc coating protects against rust and wear, making these pins perfect for outdoor use in any climate or weather condition.
  • Perfect for Trailers, RVs, and More: Designed to fit most standard trailer couplers, these versatile pins are a go-to solution for securing trailers, RVs, boats, and agricultural equipment.
  • Easy to Handle & Quick to Install: The ergonomic design allows for effortless insertion and removal, saving you time and frustration when hitching or unhitching.
  • Compact, Convenient 2-Pack: Includes two 3/8"x4" pins, ensuring you always have a backup on hand for unexpected needs or replacements during trips.



Product Description

Secure Towing Made Easy: Trailer Coupler Pins - Pack of 2, 3/8" x 4" Square Pins

wire lock pin 3/8

Truleego Trailer Coupler Pins

Upgrade your towing experience with our Trailer Coupler Pins. Designed for secure and hassle-free towing, these square pins are a must-have for every trailer owner. Our Trailer Coupler Pins are built to withstand tough towing conditions, ensuring long-lasting performance. Whether you're a professional hauler or an occasional tower, these pins deliver the reliability and peace of mind you need.

Product Details

4 inch trailer coupler pin

3/8 x 4 Inch Size

With a diameter of 3/8" and a length of 4", they offer a perfect fit for most couplers.

easy installation  shaft locking pin

Easy to Install

Simply insert the pin into the coupler and secure it with the included clip.

heavy duty trailer hitch pin 3/8

Heavy Duty 2 Pack Safety Lock Pin Set

Each pack includes 2 pins, giving you spare supply for multiple trailers or backup options.

2 packk 3/8x4inch long heavy duty trailer coupler pin set

Specification

  • Material: Carbon Steel, Zinc Plated
  • Pin Dimensions: 3/8" (diameter) x 4" (length)
  • Quantity: 2 trailer coupler pins per pack
  • Secure and Reliable: Ensure a safe and stable towing experience.
  • Durable Construction: Made from high-quality steel for long-lasting performance.
  • Easy Installation: Insert the pin and secure it with the included clip.
  • Versatile Use: Suitable for various towing applications.

Versatile Confidence for Every Haul

steady pins

Reliable Towing

Our Trailer Coupler Pins ensure a secure connection between your trailer and hitch.

Versatile Confidence for Every Haul

Versatile Use

Suitable for a wide range of towing applications, providing peace of mind on the road.

Effortless Setup for Prompt Adventures

Durable Construction

Made from high-quality carbon steel and zinc plated for long-lasting performance.


T. Baldwin
Reviewed in the United States on March 2, 2025
These are standard issue adjustable coupler pins. They work as they should. Good product
Roy Tait
Reviewed in the United States on March 16, 2025
This item works with good quality.
Trevor Melton
Reviewed in the United States on January 28, 2025
I ordered this product to help secure rental trailers from a popular national retailer.These are great quality standard couple pins that are 4 inches wide. These are bigger than what I was able to find at a popular bricks and mortar store in town. When I occasionally rent trailers for odd jobs, I'm no longer worried that the trailer will come off the ball. These pins do a great job.The two pack is a nice touch in the case that you misplace one (which I have done often).
UW85
Reviewed in the United States on January 25, 2025
Well darn - I was lazy and didn’t measure the opening for either of my trailers or hitch. I do have a tractor at a local farm where I’m hopeful these can be used with some of the attachments. 100% on me - I’ve included a couple pics in hopes of saving someone else the same issue. These are built strong and I know will work well.
pj
Reviewed in the United States on January 25, 2025
These Heavy Duty Coupler Pins are great for my utility trailer and my lawn mower trailer. They are super easy and quick to install. I feel much better knowing that these high quality carbon pins are ensuring a safe and secure hauling experience.
mountaineer
Reviewed in the United States on January 22, 2025
First, this was not what I expected and can not use it. That is on me. Instead I'll review the product as provided for its intended purpose.This is a simple hitch pin that latches to avoid coming out. It is 3/8" thick, not 1/4" thick (which I use on all my trailers). There is not much to say. It is just like all the others sold with no obvious issues in quality or operation. So for the job, it will do fine and I would recommend it. Just make sure you understand your needs. I don't think this fits on a hitch receiver (too small). And I know doesn't fit on smaller utility trailers, trail dump trailer, or pontoon boat trailer. These require 1/4" pins. I suspect on larger trailers, you need a 3/8" pin, so this would work well. See pictures of the differences in my smaller hitch pin and this one.Recommend.
Arkay
Reviewed in the United States on January 18, 2025
I had been using a bolt and nut to secure the latch on my trailer ball hitch. This is simpler, faster and accomplishes the same thing. Although the listing shows this pin being used to attach the ball adapter to the receiver hitch, I would never attempt that, nor would I suggest that anyone else try it...these pins just are not robust enough. To prevent the latch from opening once it is attached to the ball, it is fine...and much quicker for me. To attach the ball adapter to the receiver...no thanks.
Laura Jevtich
Reviewed in the United States on January 15, 2025
I wanted to use these pins for a 2" hitch pin as shown in the manufacturers product description. Unfortunately, the pin diameter is on the smaller size, with a smaller pin diameter than the hitch's receiver. While the pins fit, there is slack in the connection and the hitch will rattle. Also, the smaller pin diameter makes me think it would be the weak link in our 10,000 lb tow system rating.I will find another use for these pins.