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2015 - 2019 GMC Sierra 3500 HD
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Select your vehicle to find the exact plug-and-play parts that fit — no cutting or splicing.
This fits: 2015-2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis
Whatever your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Chevy Silverado 2500 HD or 3500 HD and GMC Sierra 2500 HD or 3500 HD (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 8,000 lbs. GTW and 800 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 12,000 lbs. WD and 1,200 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.
Trailer hitch weight ratings are limited to vehicle manufacturer's stated capacities
Not compatible for use with vertical hanging bicycles (bike racks that require the bicycles to be hung / mounted vertically)
Includes installation hardware
2015, 2016, 2017, 2018, 2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis Class 3 Hitch, 2", Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD

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
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2019 | GMC Sierra 3500 HD | 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis |
The 2015-2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis CURT Class 3 Hitch, 2" (Part #CHD-13178-004) fits 2015-2019 GMC Sierra 3500 HD models. The 2019 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2015-2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis CURT Class 3 Hitch, 2" (Part #CHD-13178-004) fits the following vehicles: 2015-2019 GMC Sierra 3500 HD. Always verify your specific year, make, and model before ordering.
Yes, the 2015-2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis CURT Class 3 Hitch, 2" (Part #CHD-13178-004) is designed to fit the 2015-2019 GMC Sierra 3500 HD.
The 2015-2019 GMC Sierra 3500 HD 6' bed, excluding factory receiver, Tommy Gate lift or cab & chassis CURT Class 3 Hitch, 2" (Part #CHD-13178-004) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
CURT part number 13178 is designed for Chevrolet and GMC 2500/3500 models with a short box. Confirm your truck matches these specifications before purchasing. If you have a long box or different model, this hitch is not compatible.
The hitch weight is 60 lbs.
The manual lists gross load capacity specifications but the actual values are blank in the document provided. Contact CURT Manufacturing technical support at 1-877-287-8634 for the specific towing and tongue weight capacities. Regardless of hitch capacity, do not exceed your vehicle manufacturer's recommended towing capacity.
You will need: a ratchet, a torque wrench, a 10" extension, a 21mm socket, and a 3/4" socket.
No, drilling is not required. The hitch uses existing holes and weldnuts in the vehicle frame.
The manual recommends lowering the spare tire from the vehicle to ease installation. You do not need to remove it completely, but lowering it provides better access to the installation area.
Only if your vehicle is a 2015 or newer model without a hitch already equipped. These vehicles have a factory light duty bumper mount hitch that must be removed before installing the CURT hitch. Older models or those already equipped with a hitch may have existing hardware that can be reused. Refer to Step 2 of the installation instructions for removal details.
Yes. The manual notes that if removing a factory hitch, you should retain the hardware for the CURT hitch install. However, the manual does not specify which pieces of existing hardware should be reused or how they integrate with the new installation. Contact CURT technical support at 1-877-287-8634 for clarification on which factory fasteners to retain.
The kit includes: 4× 1/2-13 UNC carriage bolts 1-1/4" long (part 10-10278), 6× 1/2-13 UNC serrated flange nuts (part 20-00062), 2× square hole spacers 0.250" × 1.50" × 2.00" (part CM-SP1), 2× 1/2-13 UNC carriage bolts 1-3/4" long (part 10-10272), 2× M14×2 hex head cap screws 45mm (part 10-10449), and 2× 9/16" conical toothed washers (part 30-00164).
All M14 fasteners must be torqued to 126 ft-lbs.
All 1/2" fasteners must be torqued to 110 ft-lbs.
1. Lower the spare tire for ease of installation. 2. If you have a 2015 or newer non-hitch equipped vehicle, remove the factory light duty bumper mount hitch (see manual Step 2 for details). 3. Raise the hitch into position, aligning the holes with the weldnuts in the vehicle frame. 4. Install M14 bolts and conical toothed washers through the hitch into the frame weldnuts. 5. Install 1/2" carriage bolts, spacers, and nuts as shown in the diagram. 6. Install the M14 bolts removed in Step 2 into each side of the frame rail, and install 2 carriage bolts through each strap plate into the side plate. 7. Torque all M14 fasteners to 126 ft-lbs and all 1/2" fasteners to 110 ft-lbs. 8. Raise the spare tire back into position.
After installation, periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. This maintenance is important for safe operation.
Do not exceed your vehicle manufacturer's recommended towing capacity, even if the hitch capacity is higher. Your vehicle's limitations take priority.
Professional installation takes approximately 30 minutes. DIY installation for a novice takes approximately 60 minutes.
Yes, if you have a Chevrolet or GMC 2500/3500 with a short box. It does not fit long box models.
No, drilling is not required. The hitch uses existing holes and weldnuts in the vehicle frame.
You need a ratchet, torque wrench, 10" extension, 21mm socket, and 3/4" socket.
Torque all M14 fasteners to 126 ft-lbs and all 1/2" fasteners to 110 ft-lbs.
Do not exceed your vehicle manufacturer's recommended towing capacity. The manual's capacity fields are blank; contact CURT technical support at 1-877-287-8634 for specific values.
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