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
Condition: New
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Availability:
In Stock.
Arrives
Monday, Aug 3
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Features
- 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.
Material: Carbon Steel
Size: 3/8x4inch
Pin type: Hitch
Brand: Truleego
Item Diameter: 0.38 Inches
Brand: Truleego
Number of Pieces: 2
Fastener Type: Hitch Pin
Manufacturer: Truleego
Color: Silver
Size Name: 3/8x4inch
Item Diameter: 0.38 Inches
Item Dimensions: 4 x 0.25 x 1.8 inches
Material Type: Carbon Steel
Finish Types: Zinc-Coated
Screw Head Style: Loop
Pin Type: Hitch
Thread Size: 3/8 inch
Compatible Groove Diameter: 0.38 Inches
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Aug 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Model: SSKJ-10-100-S
This item works with good quality.
Reviewed in the United States on March 16, 2025 by Roy Tait
Model: SSKJ-10-100-S
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.
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Reviewed in the United States on January 22, 2025 by mountaineer
Model: SSKJ-10-100-S
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).
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Reviewed in the United States on January 28, 2025 by Trevor Melton
Model: SSKJ-10-100-S
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.
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Reviewed in the United States on January 25, 2025 by UW85
Model: SSKJ-10-100-S
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.
Reviewed in the United States on January 25, 2025 by pj
Model: SSKJ-10-100-S
This is a great 3/8" hitch pin. They do make other diameters if you need a larger ones but this one worked great for both my Kubota 4 wheeler hitch and small boat trailer. It arrived quickly and was exactly what I needed. Good price too
Reviewed in the United States on January 18, 2025 by ReadsBetweenTheWine
Model: SSKJ-10-100-S
These are standard issue adjustable coupler pins. They work as they should. Good product
Reviewed in the United States on March 2, 2025 by T. Baldwin
Model: SSKJ-10-100-S
The pins that I received are over size and essentially unusable for me. They are .390 in diameter.
Reviewed in the United States on March 13, 2026 by Kyle A. Lawrence