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CURT
Verify Fitment
Select your vehicle to confirm this part fits.
2014 - 2020 Cadillac Escalade
Confirmed to Fit
2014 - 2020 Cadillac Escalade ESV
Confirmed to Fit
2014 - 2018 Chevrolet Silverado 1500
Confirmed to Fit
2019 Chevrolet Silverado 1500 LD
Confirmed to Fit
2015 - 2019 Chevrolet Silverado 2500 HD
Confirmed to Fit
2015 - 2019 Chevrolet Silverado 3500 HD
Confirmed to Fit
2015 - 2020 Chevrolet Suburban
Confirmed to Fit
Confirmed to Fit
2016 - 2019 Chevrolet Suburban 3500 HD
Confirmed to Fit
2015 - 2020 Chevrolet Tahoe
Confirmed to Fit
2014 - 2018 GMC Sierra 1500
Confirmed to Fit
Confirmed to Fit
2014 - 2019 GMC Sierra 2500 HD
Confirmed to Fit
2014 - 2019 GMC Sierra 3500 HD
Confirmed to Fit





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Always the correct part
We know our products
Quality Products
Free Shipping!
Warranty: One-Year Limited Warranty
Installation Difficulty: Novice
Installation Time Exact (Minutes): 5
A CURT Quick Plug brake controller wiring adapter is one of the fastest and easiest ways to plug your brake controller into your vehicle. It requires no cutting or splicing! Just insert the vehicle-specific plug end into the OEM vehicle?s factory brake controller socket. The other end plugs into your CURT trailer brake controller. Quick Plug harnesses are available for a variety of vehicles and are unique for each vehicle application to provide the easiest possible installation. This particular brake controller harness fits certain years of the Cadillac Escalade, Escalade ESV, Chevy Silverado and GMC Sierra 1500, 1500 LD, 1500 Limited, 2500HD, 3500HD Suburban, Suburban 1500, Suburban 3500HD, Tahoe, Yukon and Yukon XL (see application info to verify fitment). CURT Quick Plug harnesses are compatible with most CURT brake controls and can be used as a replacement or for a new control unit installation. They're also great for towing all types of trailers with electric brakes. For versatile mounting of your trailer brake controller this Quick Plug wire harness measures two feet long. It also features a slit loom sleeve to keep the wires protected against crushing and abrasions. CURT Quick Plug wire plug-in adapters are made with 12-gauge wires for a reliable connection and braking, and come with zip ties to keep the harness contained and out of sight.

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 888-634-9494The CURT 51452 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade (Part #BKDK51452) fits 2014-2020 Cadillac Escalade models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 51452 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade (Part #BKDK51452) fits the following vehicles: 2014-2020 Cadillac Escalade; 2014-2020 Cadillac Escalade ESV; 2014-2018 Chevrolet Silverado 1500; 2019 Chevrolet Silverado 1500 LD; 2015-2019 Chevrolet Silverado 2500 HD; 2015-2019 Chevrolet Silverado 3500 HD; 2015-2020 Chevrolet Suburban; 2014 Chevrolet Suburban 1500; 2016-2019 Chevrolet Suburban 3500 HD; 2015-2020 Chevrolet Tahoe; 2014-2018 GMC Sierra 1500; 2019 GMC Sierra 1500 Limited; 2014-2019 GMC Sierra 2500 HD; 2014-2019 GMC Sierra 3500 HD; 2015-2020 GMC Yukon; 2015-2020 GMC Yukon XL. Always verify your specific year, make, and model before ordering.
Yes, the CURT 51452 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade (Part #BKDK51452) is designed to fit the 2014-2020 Cadillac Escalade.
The CURT 51452 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, Yukon, Escalade (Part #BKDK51452) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The CURT brake control harness (part numbers 51451 and 51452) is designed for Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon. Check your vehicle's make and model against this list. The manual does not specify which part number applies to which vehicle, so contact CURT at 877.287.8634 to confirm the correct part for your specific model.
The CURT brake control harness (51451 or 51452) is an electrical connector assembly that links a brake control unit to your vehicle's electrical system. It connects to an empty connection point in the vehicle's electrical junction box under the dash, left of the steering column, and then plugs into the brake control unit's quick connector. The harness enables the brake control unit to function properly.
The electrical junction box is located under the dash, to the left of the steering column. The CURT brake control harness connects to an empty vehicle connection point inside this box. You will need to remove the box cover to access the connection point.
1. Locate the black electrical junction box under the dash, left of the steering column, and remove its cover. 2. Find the empty vehicle connection point inside the box. 3. Insert the CURT harness connector into this connection point, ensuring it is fully inserted with locking tabs in place. 4. Insert the harness's black connector into the brake control unit's quick plug connector. 5. Secure the harness with the provided cable ties, avoiding pinch points. 6. Complete installation and testing per the brake control unit instruction manual.
When you insert the CURT harness connector into the vehicle's connection point, push it in completely until the locking tabs on the connector engage and lock into place. This ensures a secure, fully seated connection. The manual emphasizes this step to prevent loose connections that could cause the brake control harness to malfunction.
The CURT brake control harness comes with cable ties to secure the harness in place. The manual does not specify the quantity, size, or colour of the cable ties. Use them to secure the harness while avoiding pinch points that could damage the wiring.
Avoid pinch points when securing the harness with cable ties. Pinching the harness could damage the wiring and cause electrical faults or failure of the brake control system.
After installation, test the harness for proper function by following the test procedures in the brake control unit instruction manual. The CURT harness installation is complete once you have connected it to the vehicle's junction box and the brake control unit; the brake control unit manual will guide you through functional testing.
Yes. The CURT brake control harness is a connector assembly that links a brake control unit to your vehicle. The harness alone does not control brakes; it enables the brake control unit to communicate with your vehicle's electrical system. You must have a compatible brake control unit and install it according to its instruction manual.
Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon. Contact CURT at 877.287.8634 to confirm which part number applies to your specific model.
No drilling or modification is required. The harness connects to an existing empty connection point in the vehicle's electrical junction box under the dash, left of the steering column.
16 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2014 - 2020 | Cadillac Escalade | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 - 2020 | Cadillac Escalade ESV | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 - 2018 | Chevrolet Silverado 1500 | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2019 | Chevrolet Silverado 1500 LD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2019 | Chevrolet Silverado 2500 HD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2019 | Chevrolet Silverado 3500 HD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2020 | Chevrolet Suburban | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 | Chevrolet Suburban 1500 | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2016 - 2019 | Chevrolet Suburban 3500 HD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2020 | Chevrolet Tahoe | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 - 2018 | GMC Sierra 1500 | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2019 | GMC Sierra 1500 Limited | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 - 2019 | GMC Sierra 2500 HD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2014 - 2019 | GMC Sierra 3500 HD | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2020 | GMC Yukon | Installation Location: BH3 Installation Time: 30-60 minutes |
| 2015 - 2020 | GMC Yukon XL | Installation Location: BH3 Installation Time: 30-60 minutes |





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