Our in-house experts typically reply within one business day.
CURT
Verify Fitment
Select your vehicle to confirm this part fits.
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
Warranty: One-Year Limited Warranty
Electrical System Type: 2W
Output Type: 4-Way Flat
Installation Difficulty: Novice
Installation Time Exact (Minutes): 5
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the GMC C1500, C2500, C3500, K1500, K2500 and K3500 (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
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 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
6 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1988 - 1999 | GMC C1500 | Installation Time: 30-60 minutes |
| 1988 - 2000 | GMC C2500 | Installation Time: 30-60 minutes |
| 1988 - 2000 | GMC C3500 | Installation Time: 30-60 minutes |
| 1988 - 1999 | GMC K1500 | Installation Time: 30-60 minutes |
| 1988 - 2000 | GMC K2500 | Installation Time: 30-60 minutes |
| 1988 - 2000 | GMC K3500 | Installation Time: 30-60 minutes |
The CURT Custom Wiring, 4-Way Flat, Select GMC C1500, C2500, C3500, K1500, K2500, K3500 Trailer Connector Kit (Part #BKDK55315) fits the following vehicles: 1988-1999 GMC C1500; 1988-2000 GMC C2500; 1988-2000 GMC C3500; 1988-1999 GMC K1500; 1988-2000 GMC K2500; 1988-2000 GMC K3500. Always verify your specific year, make, and model before ordering.
Yes, the CURT Custom Wiring, 4-Way Flat, Select GMC C1500, C2500, C3500, K1500, K2500, K3500 Trailer Connector Kit (Part #BKDK55315) is designed to fit the 1988-1999 GMC C1500.
The CURT Custom Wiring, 4-Way Flat, Select GMC C1500, C2500, C3500, K1500, K2500, K3500 Trailer Connector Kit (Part #BKDK55315) fits 1988-1999 GMC C1500 models. The 2000 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT Custom Wiring, 4-Way Flat, Select GMC C1500, C2500, C3500, K1500, K2500, K3500 Trailer Connector Kit (Part #BKDK55315) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, the Curt 55315 custom wiring harness is designed for Chevrolet C/K 1500 pickup trucks. It is also compatible with Chevrolet C/K 2500/3500, GMC C/K 1500, and GMC C/K 2500/3500 pickup trucks. The harness connects to your vehicle's existing taillight wiring harness connector.
Yes, the Curt 55315 custom wiring harness is compatible with GMC C/K 2500/3500 pickup trucks, as well as GMC C/K 1500 models. The installation process is the same across all listed applications.
The Curt 55315 kit includes a custom wiring harness with a yellow wire connector end, a white ground wire with ring terminal, a provided screw for grounding, cable ties for securing loose wires, and a 4-flat dust cover to help prevent corrosion.
The manual lists no specific tools as required. However, you will need a drill to create a 3/32" pilot hole for the ground wire screw if a suitable existing screw with nut is not available on the vehicle frame. A test light or properly wired trailer is needed to test for proper function after installation.
The manual does not specify whether the battery must be disconnected. Check your vehicle owner's manual or contact the vehicle manufacturer for guidance on electrical work preparation.
Locate your vehicle's taillight wiring harness connector. Separate the connector from the taillight housing carefully, taking care not to damage the locking tabs. Insert the custom wiring harness end with the yellow wire between the separated connectors. Push both connectors fully together until the locking tabs are in place and secure.
Locate a suitable grounding point near the taillight connector, such as an existing screw with nut in the vehicle frame. The area must be free of rust, dirt and paint. If no suitable point exists, drill a 3/32" pilot hole and use the provided screw. Secure the white ground wire using the ring terminal and the provided screw.
Drilling is required only if a suitable existing screw with nut is not available on the vehicle frame near the taillight connector for grounding. If drilling is necessary, you will drill a 3/32" pilot hole. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
When in use, route the 4-flat connector to the center of the vehicle and out of the trunk. When not in use, roll up the connector and store it in a convenient, out-of-the-way location inside the trunk. Secure any loose wires with the provided cable ties.
Test for proper function by using a test light or connecting a properly wired trailer to the 4-flat connector. All steps must be followed to ensure the wiring harness will function properly. If testing reveals issues, review the installation steps to confirm all connections are secure and the ground wire is properly attached.
Do not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating and potential fire. Refer to your vehicle owner's manual or contact the vehicle manufacturer for your specific lamp load rating.
Install the provided 4-flat dust cover to help prevent corrosion. This should be done as part of the final installation step after all other components are in place.
No, you do not need to remove the taillight housing. You only need to separate the taillight wiring harness connector from the housing by carefully disconnecting it, taking care not to damage the locking tabs. The custom harness is then inserted between the separated connectors.
Yes, if you have a Chevrolet or GMC C/K 1500, 2500, or 3500 pickup truck. The harness connects to your vehicle's existing taillight connector.
A drill may be needed to create a 3/32" pilot hole for the ground wire screw if no suitable existing screw is available on the vehicle frame. A test light or properly wired trailer is required to test the installation.
Drilling is only required if no suitable existing screw with nut is available on the vehicle frame near the taillight connector. If drilling is necessary, drill a 3/32" pilot hole. Always check for hidden items before drilling.
Do not exceed the product rating or your vehicle's lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating and potential fire.
Test for proper function using a test light or by connecting a properly wired trailer to the 4-flat connector.
Free Shipping
Ships free on all orders
Authorized Dealer
Quick Ship
In stock and ready to ship — order now!
Shipping from Eau Claire, WIFREE SHIPPING
Estimated delivery Tue, Sep 1 - Thu, Sep 3
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
Total for 4 items:
$107.94
No reviews have been added for this product.