CURT Heavy-Duty 5/8" Hitch Pin with Groove (2-1/2" or 3" Receiver, Zinc, Packaged)

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The job of a hitch pin is incredibly important in towing, and for this reason, CURT hitch pins and clips are made to be of the utmost quality, providing you with reliable security for your trailer and cargo.

Quick Facts:

  • Fits any 3" x 3" receiver tube opening with a 5/8" pin hole
  • Tested and rated to 21,000 lbs. GTW
  • High-strength steel construction with zinc-plated finish
  • Secures ball mounts and other receiver tube inserts
  • Grooved pin allows clip attachment at any angle
  • Bent handle for an easier grip
  • Limited lifetime warranty (one-year finish, one-year parts)
  • Retainer clip included
  • Before towing, be sure the hitch pin is in place and securely fastened with the clip
  • High-strength steel construction with zinc-plated finish
  • CURT part number: 21506

Whatever type of load you are hauling, having towing equipment that can work as hard as you do is a must. For the most heavy-duty towing jobs, this CURT 5/8" hitch pin packs an extra punch. It is constructed with an extended length, from high-strength steel and is tested to 21,000 lbs. to be compatible with 3" x 3" trailer hitches. The thorough testing done on this hitch pin allows it to keep up with these heavy-duty hitches and tow the heaviest of trailers. This hitch pin is able to fit any 3" x 3" receiver with a 5/8" diameter pin hole. It also features a durable zinc-plated finish to outlast rust, and it has a grooved tip to make inserting the retainer clip easy, from any angle. This package includes both the hitch pin and clip.


  • HEAVY-DUTY TOWING. This high-strength trailer hitch pin is tested and rated for a capacity of up to 21,000 lbs. gross trailer weight. This makes it well-suited for a variety of heavy-duty towing applications
  • ERGONOMIC ACCESS. Instead of a single hole, the grooved head of this trailer pin allows the hitch clip to be inserted at any perpendicular angle. It is easier to use and more ergonomic to install whenever needed
  • VERSATILE. The 5/8-inch diameter of this hitch pin is compatible with any heavy-duty ball mount or other hitch accessories with a 2-1/2-inch or 3-inch shank and 5/8-inch pin hole, making this hitch pin a perfect fit for the largest of class 5 hitches
  • EASY TO GRIP. The 105-degree bend in this trailer hitch pin creates a useful handle for easier use and allows the pin to stay securely engaged in the trailer hitch and ball mount
  • CORROSION-RESISTANT. Protected by a durable zinc-plated finish, this all-steel tow hitch pin offers superior strength and maintains excellent resistance to rust and corrosion for longevity and hassle-free use every time

More Information
SKU 2020102911
Brand Curt™
Quantity In Package 1
Country of Origin CHN
Hardware Type Pin
Gross Trailer Weight (GTW) 21,000 lbs.
Hardware Finish 2562944
Warranty Term Limited lifetime warranty (one-year finish, one-year parts)
Unit of Measure EA
UPC 612314215065
Manufacturer Reference Number 21506

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