2023 GMC Sierra 2500 HD Trailer Hitch

Fits the 2023 GMC Sierra 2500 HD

The hitch that fits, the harness that plugs in, shipped free anywhere in Canada

Every part below is matched to the 2023 GMC Sierra 2500 HD, priced in Canadian dollars, and on its way to your door with no shipping charge.

CUR-15007_01.jpg
Trailer hitchCURT 15007CURT 15007 CLASS 5 HITCH 20-26 GM HD CURT 15007 $626.89 CAD See the part →

CURT parts for the 2023 GMC Sierra 2500 HD

Your 2023 GMC Sierra 2500 HD has five CURT hitches to choose from, and the right one comes down to what you're pulling and what you'll hang off the receiver. CURT 15007 is a Class 5 hitch with a 2-inch receiver, rated to 17,000 lb gross trailer weight and 2,550 lb tongue weight, $626.89 CAD. Every one ships free anywhere in Canada.

  • CURT 15400 is a Class 5 hitch with a 2-inch receiver, rated to 17,000 lb gross trailer weight and 2,550 lb tongue weight, $495.52 CAD.
  • CURT 14005 is a Class 4 hitch with a 2-inch receiver, rated to 10,000 lb gross trailer weight and 1,000 lb tongue weight, $576.66 CAD.
  • CURT 13447 is a Class 3 hitch with a 2-inch receiver, rated to 8,000 lb gross trailer weight and 800 lb tongue weight, $566.16 CAD.
  • CURT 15010 is a Class 5 hitch with a 2-1/2 inch receiver, rated to 20,000 lb gross trailer weight and 2,700 lb tongue weight, $626.89 CAD.

There's a front receiver too. CURT 31091 mounts behind the front bumper of the 2023 GMC Sierra 2500 HD, rated to 5,000 lb with 500 lb tongue weight, $299.33 CAD.

Trailer lights are a plug-in job on this one. CURT 56072 is the seven-way RV plug harness for the 2023 GMC Sierra 2500 HD, $113.41 CAD, and it clicks into the factory connector so you're not splicing wires behind the bumper. A second harness fits as well; both are below.

What you need to tow with a 2023 GMC Sierra 2500 HD

A bike rack only needs the hitch. A trailer needs all three, and every piece ships free anywhere in Canada.

  1. CURT 15007 hitch, $626.89 CAD. The receiver that bolts to the Sierra 2500 HD.
  2. CURT 56072 wiring harness, $113.41 CAD. Plugs in, no splicing; the trailer lights follow the Sierra 2500 HD's.
  3. CURT 45836 ball mount, $41.70 CAD. Ball mount with the ball already on it, ready to hook a trailer. Bigger coupler? CURT 45041 carries a 2-5/16-inch ball, $62.42 CAD.

More GMC Sierra 2500 HD hitch years

2023 GMC Sierra 2500 HD hitch questions

Which trailer hitch fits a 2023 GMC Sierra 2500 HD?

CURT 15007 (Class 5, 2-inch receiver, 17,000 lb), CURT 15400 (Class 5, 2-inch receiver, 17,000 lb), CURT 14005 (Class 4, 2-inch receiver, 10,000 lb), CURT 13447 (Class 3, 2-inch receiver, 8,000 lb), and CURT 15010 (Class 5, 2-1/2 inch receiver, 20,000 lb) all fit. Pick the class that covers your trailer with room to spare, then check the fit table on the product page for your build.

How much can a 2023 GMC Sierra 2500 HD tow with this hitch?

The hitch is rated to 17,000 lb gross trailer weight and 2,550 lb tongue weight, or 17,000 lb with a weight-distribution hitch. Your Sierra 2500 HD has its own tow rating in the owner's manual, and the lower number is your limit. A loaded bike rack counts against tongue weight too.

Do I need a wiring harness for the 2023 GMC Sierra 2500 HD?

If a trailer is going on, yes. Brake and turn signals have to work, and CURT 56072 plugs into the factory connector so the trailer lights follow the Sierra 2500 HD's. Order it with the hitch and it's one install.

More for this vehicle

Shop the category

All towing & hitch guides →