CURT part #21507
CURT part #21507
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Heavy-Duty 5/8" Hitch Pin with Groove (2-1/2" or 3" Receiver, Zinc) #21507

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3" x 3" receiver hitches are built for towing heaviest of trailers, and a hitch pin with...

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Heavy-Duty 5/8" Hitch Pin with Groove (2-1/2" or 3" Receiver, Zinc) #21507


3" x 3" receiver hitches are built for towing heaviest of trailers, and a hitch pin with the proper size and rating is essential for safe towing. This heavy-duty hitch pin has been stringently tested at our Detroit engineering facility to safely tow 21,000 lbs. It easily secures heavy-duty ball mounts or other hitch-mounted accessories in the receiver tube. It is constructed from high-strength steel and has a rust-resistant zinc-plated finish for long-lasting durability.

This heavy-duty hitch pin is made extra-long and has a 5/8" diameter to fit any 3" x 3" receiver with a 5/8" pin hole. It also features an included retainer clip and a grooved tip for easy clip access from any angle.


  • 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
  • Never exceed the lowest weight capacity of any towing component


Shipping Weight 0.750
Pin Diameter .625
Receiver Tube Size 3
Warranty Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Material Blank
Part Type *


3" Hitch Accessories | CURT

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