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This fits: 2007 GMC Sierra 3500 Classic Factory replacement hitch
When we came to the limits of towing capacity, we wanted to know what else was out there. What could we discover off the beaten path? So, we kept going. CURT class 5 Xtra Duty hitches begin a class of their own, beyond class 4 and beyond anything the standards dictate. They are designed for the hard road where only full-size pickup trucks, vans and SUVs dare to tread. They are capable of pulling almost any heavy-duty trailer, including toy haulers, dump trailers, logging trailers, small yacht trailers and more (NOTE: Never exceed the lowest weight capacity of any towing component). This particular Xtra Duty class 5 trailer hitch offers a gross trailer weight capacity of 16,000 lbs. and an extra-high tongue weight capacity of 2,400 lbs. It features a 2" x 2" receiver tube opening to accept a ball mount or hitch-mounted accessory, such as a cargo carrier or winch mount. It is designed to be a custom-fit trailer hitch for certain years of the long-bed Chevy Silverado 2500, 2500 HD, 2500 HD Classic, 3500, 3500 HD or 3500 Classic and long-bed GMC Sierra 2500, 2500 HD, 2500 HD Classic, 3500, 3500 HD or 3500 Classic (to verify compatibility with your vehicle, see application info). For a little extra towing power and stability, this class 5 hitch can also be used in combination with a weight distributing hitch. It is rated for 17,000 lbs. WD and 2,400 lbs. WDTW. In our drive to create a more powerful hitch, CURT has not neglected the finer details. Our class 5 trailer hitches are welded with precision and go through multiple stages of cleaning to create a smooth surface that is ready to accept our co-cured finish. To protect them from corrosion, chipping and UV damage, these hitches are immersed in a liquid A-coat and then finished in a high-quality black carbide powder coat. They come with grade-8 mounting hardware for solid installation.
Trailer hitch weight ratings are limited to vehicle manufacturer's stated capacities
Includes strong, grade-8 installation hardware
2007 GMC Sierra 3500 Classic Factory replacement hitch Xtra Duty Class 5 Hitch, 2", Select Silverado, Sierra 2500, 3500 HD, Long-Bed
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Lifetime
Part number 15312 fits 2001–2010 Chevy and GMC 2500HD and 3500 models with a long bed and factory cutout bumper only. It is an OEM replacement hitch. If your vehicle does not have a factory cutout bumper, this hitch is not compatible. Verify your bumper type before purchasing.
The hitch weight is 60 lbs.
The manual specifies gross load capacity when used as a weight-carrying hitch and when used as a weight-distribution hitch, but the capacity values are not filled in on the document provided. Contact Curt Manufacturing technical support at 1-877-287-8634 for the specific capacity ratings for your application.
Yes. The manual states to remove the spare tire for ease of installation in Step 1, and to reinstall it in Step 6 after the hitch is fully installed and torqued.
You will need: a socket wrench, a torque wrench, a 21mm socket, a socket extension, and a 3/4" socket.
No. The manual explicitly states "NO DRILLING REQUIRED."
The hitch includes: 4× 1/2-13 UNC carriage bolts, 1-3/4" grade 8 (part 10-10272); 4× 1/2-13 UNC serrated flange nuts, grade 8 (part 20-00062); 2× 0.250 × 1.25 × 2.00" square hole spacers (part CM-SP3); and 2× 0.250 × 1.25 × 3.00" square hole spacers (part CM-SP19). The existing 14mm bolts and weldnuts on your frame rails are reused.
1. Remove the spare tire. 2. Remove the existing 14mm bolts from the bumper bracket on both sides and save them. 3. Raise the hitch and align it with the weldnuts from the removed 14mm bolts. 4. Reinstall the 14mm bolts on both sides. 5. Install 1/2-13 carriage bolts with SP19 spacers in the forward-most holes and 1/2-13 carriage bolts with SP3 spacers in the middle holes; install 1/2-13 hex flange nuts onto all carriage bolts. 6. Reinstall the spare tire. 7. Torque all fasteners.
Torque all 1/2" hardware (carriage bolts and hex flange nuts) to 110 ft-lbs.
Torque all 14mm hardware to 126 ft-lbs.
Do not exceed your vehicle manufacturer's recommended towing capacity. The hitch itself has a gross load capacity, but your vehicle's frame, suspension, brakes, and engine have limits set by the manufacturer. Always follow the vehicle manufacturer's specifications, which are typically found in your owner's manual or on a placard inside the driver's door jamb.
Periodically check the hitch to ensure that all fasteners are tight and that all structural components are sound. The manual does not specify an exact interval, but regular inspection before towing trips is recommended.
The Curt 15312 fits 2001–2010 Chevy and GMC 2500HD and 3500 long bed with factory cutout bumper only.
No drilling required.
Socket wrench, torque wrench, 21mm socket, socket extension, and 3/4" socket.
Yes, remove the spare tire before installation and reinstall it after torquing all fasteners.
Torque 1/2" hardware to 110 ft-lbs and 14mm hardware to 126 ft-lbs.
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 | GMC Sierra 3500 Classic | Factory replacement hitch |
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