
Ask a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
CURT
Verify Fitment
Select your vehicle to confirm this part fits.
1999 - 2018 Chevrolet Silverado 1500
Confirmed to Fit
2007 Chevrolet Silverado 1500 Classic
Confirmed to Fit
2001 - 2003, 2005 - 2006 Chevrolet Silverado 1500 HD
Confirmed to Fit
2007 Chevrolet Silverado 1500 HD Classic
Confirmed to Fit
2019 Chevrolet Silverado 1500 LD
Confirmed to Fit
1999 - 2004 Chevrolet Silverado 2500
Confirmed to Fit
2001 - 2019 Chevrolet Silverado 2500 HD
Confirmed to Fit
2007 Chevrolet Silverado 2500 HD Classic
Confirmed to Fit
2001 - 2006 Chevrolet Silverado 3500
Confirmed to Fit
2007 Chevrolet Silverado 3500 Classic
Confirmed to Fit
2007 - 2019 Chevrolet Silverado 3500 HD
Confirmed to Fit
1999 - 2016 Ford F-250 Super Duty
Confirmed to Fit
1999 - 2026 Ford F-350 Super Duty
Confirmed to Fit
1999 - 2026 Ford F-350 Super Duty
Confirmed to Fit
1999 - 2026 Ford F-450 Super Duty
Confirmed to Fit
1999 - 2026 Ford F-550 Super Duty
Confirmed to Fit
2001 - 2003, 2005 - 2006 GMC Sierra 1500 HD
Confirmed to Fit
2007 GMC Sierra 1500 HD Classic
Confirmed to Fit
2001 - 2019 GMC Sierra 2500 HD
Confirmed to Fit
2007 GMC Sierra 2500 HD Classic
Confirmed to Fit
2007 - 2019 GMC Sierra 3500 HD
Confirmed to Fit
2004 - 2015, 2017 - 2024 Nissan Titan
Confirmed to Fit








Always the correct part
We know our products
Quality Products
Free Shipping!








Always the correct part
We know our products
Quality Products
Free Shipping!
Requires 2-1/8" hole saw for installation
Warranty: One-Year Limited Warranty
Installation Difficulty: Advanced
Installation Time Exact (Minutes): 45
There is nothing like the luxury and power that go along with heavy-duty towing. 5th wheel RVs offer a deluxe, home-away-from-home experience unlike any other, while gooseneck trailers possess a strength that far surpasses most other trailer options. As with any trailer, however, 5th wheels and goosenecks must be equipped with the proper lighting and electrical systems, and tend to require even more complex connectors than a standard receiver-type trailer setup. Make things simple with a CURT 5th wheel / gooseneck extension harness. These wiring harnesses are designed to put an extra connector socket in the bed of your pickup truck while still retaining power to the rear connector socket mounted on your bumper. This is done by plugging into the back of the existing original equipment (OEM) harness and routing through the body of the truck to a hole in the truck bed, providing a connector that is ready to accommodate your 5th wheel or gooseneck trailer. This CURT extension harness is designed to work with 7-way RV blade connectors and comes in a length of 10'. It is compatible with certain models of Chevrolet, Dodge, Ford, GMC, Nissan, Ram and Toyota (see application to verify fitment). When you need a towing electrical solution that allows you to switch back and forth between your receiver hitch and specialized trailer hitch, CURT gets you plugged in.

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
41 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 1999 - 2018 | Chevrolet Silverado 1500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 | Chevrolet Silverado 1500 Classic | — | Installation Location - Installation Time: 30-60 minutes |
| 2001 - 2003, 2005 - 2006 | Chevrolet Silverado 1500 HD | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 | Chevrolet Silverado 1500 HD Classic | — | Installation Location - Installation Time: 30-60 minutes |
| 2019 | Chevrolet Silverado 1500 LD | — | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2004 | Chevrolet Silverado 2500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2001 - 2019 | Chevrolet Silverado 2500 HD | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 | Chevrolet Silverado 2500 HD Classic | — | Installation Location - Installation Time: 30-60 minutes |
| 2001 - 2006 | Chevrolet Silverado 3500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 | Chevrolet Silverado 3500 Classic | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 - 2019 | Chevrolet Silverado 3500 HD | — | Installation Location - Installation Time: 30-60 minutes |
| 2009 - 2010 | Dodge Ram 1500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2010 | Dodge Ram 2500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2010 | Dodge Ram 3500 | — | Installation Location - Installation Time: 30-60 minutes |
| 1997 - 2014 | Ford F-150 | — | Installation Location - Installation Time: 30-60 minutes |
| 2004 | Ford F-150 Heritage | — | Installation Location - Installation Time: 30-60 minutes |
| 1997 - 1999 | Ford F-250 | — | Installation Location - Installation Time: 30-60 minutes |
| 1997 | Ford F-250 HD | — | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2016 | Ford F-250 Super Duty | — | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2026 | Ford F-350 Super Duty | Cab & Chassis · 2-Door | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2026 | Ford F-350 Super Duty | Cab & Chassis · 4-Door | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2026 | Ford F-450 Super Duty | — | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2026 | Ford F-550 Super Duty | — | Installation Location - Installation Time: 30-60 minutes |
| 1999 - 2018 | GMC Sierra 1500 | — | Installation Location - Installation Time: 30-60 minutes |
| 2007 | GMC Sierra 1500 Classic | — | Installation Location - Installation Time: 30-60 minutes |
The CURT 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) Trailer Connector Kit (Part #BKDK56000) fits 1999-2018 Chevrolet Silverado 1500 models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) Trailer Connector Kit (Part #BKDK56000) is designed to fit the 1999-2018 Chevrolet Silverado 1500.
The CURT 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) Trailer Connector Kit (Part #BKDK56000) fits the following vehicles: 1999-2018 Chevrolet Silverado 1500; 2007 Chevrolet Silverado 1500 Classic; 2001-2006 Chevrolet Silverado 1500 HD; 2007 Chevrolet Silverado 1500 HD Classic; 2019 Chevrolet Silverado 1500 LD; 1999-2004 Chevrolet Silverado 2500; 2001-2019 Chevrolet Silverado 2500 HD; 2007 Chevrolet Silverado 2500 HD Classic; 2001-2006 Chevrolet Silverado 3500; 2007 Chevrolet Silverado 3500 Classic; 2007-2019 Chevrolet Silverado 3500 HD; 2009-2010 Dodge Ram 1500; 2010 Dodge Ram 2500; 2010 Dodge Ram 3500; 1997-2014 Ford F-150; 2004 Ford F-150 Heritage; 1997-1999 Ford F-250; 1997 Ford F-250 HD; 1999-2016 Ford F-250 Super Duty; 1999-2026 Ford F-350 Super Duty; 1999-2026 Ford F-450 Super Duty; 1999-2026 Ford F-550 Super Duty; 1999-2018 GMC Sierra 1500; 2007 GMC Sierra 1500 Classic; 2001-2006 GMC Sierra 1500 HD; 2007 GMC Sierra 1500 HD Classic; 2019 GMC Sierra 1500 Limited; 1999-2004 GMC Sierra 2500; 2001-2019 GMC Sierra 2500 HD; 2007 GMC Sierra 2500 HD Classic; 2001-2006 GMC Sierra 3500; 2007 GMC Sierra 3500 Classic; 2007-2019 GMC Sierra 3500 HD; 2004-2024 Nissan Titan; 2016-2024 Nissan TITAN XD; 2011-2026 Ram 1500; 2019-2024 Ram 1500 Classic; 2011-2026 Ram 2500; 2011-2026 Ram 3500; 2010-2026 Toyota Tundra. Always verify your specific year, make, and model before ordering.
The CURT 10' Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed) Trailer Connector Kit (Part #BKDK56000) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, the CURT 56000 Custom Wiring Harness Extension is compatible with Chevrolet Silverado pickup trucks. It is mounted behind the driver side rear bumper (T3 location). If your truck has an aluminum body bed, you will also need CURT# 57007 isolator kit to prevent corrosion.
Yes, the CURT 56000 is compatible with Ford F-150 in all variants: standard F-150, new body style, and F-150 Heritage. It mounts behind the driver side rear bumper. If your truck has an aluminum body bed, you will need CURT# 57007 isolator kit to prevent corrosion.
Yes, the CURT 56000 is compatible with Dodge Ram 1500, 2500, and 3500 pickup trucks, as well as Ram 1500, 2500, and 3500 (the newer Ram brand designation). It mounts behind the driver side rear bumper. If your truck has an aluminum body bed, you will need CURT# 57007 isolator kit to prevent corrosion.
Yes. If you are installing the CURT 56000 in an aluminum body truck bed, you must use CURT# 57007 isolator kit to prevent corrosion of the aluminum body.
You will need: a drill, 2 1/8" hole saw, 7/64" drill bit, metal file, flat blade screwdriver, and Phillips screwdriver.
Yes. Step 1 of the installation requires you to locate the vehicle battery on the driver side under the hood and disconnect the negative battery terminal before proceeding with any other steps.
Carefully release the gray locking clip and gently pull the connector apart while holding down on the connector locking latch. This will separate the 7-way connector from the vehicle wiring harness.
Insert the longer of the paired connectors into the vehicle wiring harness connector. Make sure it is fully inserted with locking tabs in place. The shorter connector goes into the rear of the factory 7-way socket.
Locate a suitable mounting point on the driver's side between the rear post and the wheel well and route the harness to this location. Be sure the harness will not pinch or bind when turning.
Using a hole saw, drill a 2 1/8" hole in the desired location in the sidewall. After drilling, use a metal file to smooth the edges of the hole to prevent abrasion of the harness or connector.
Using the connector as a template, drill four 7/64" mounting screw holes in the sidewall. These holes are used to secure the 7-way connector to the vehicle using the provided self-tapping screws.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. This is especially important when drilling through the sidewall.
Test for proper function by using a test light or connecting a properly wired trailer. This should be done after the connector is mounted and before reconnecting the battery terminal.
After testing for proper function, secure the extension harness cable to the vehicle using the cable ties provided. This prevents the harness from moving or becoming damaged during vehicle operation.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. This ensures safe operation and prevents damage to the wiring harness and vehicle electrical system.
CURT 56000 fits Chevrolet Silverado, Dodge Ram 1500/2500/3500, Dodge Dakota, Ford F-150 (all variants), Ford F-250/F-350/F-450/F-550 Super Duty, GMC Sierra, Nissan Titan/Titan XD, and Toyota Tundra. Aluminum body trucks require CURT# 57007 isolator kit.
Drill, 2 1/8" hole saw, 7/64" drill bit, metal file, flat blade screwdriver, and Phillips screwdriver.
Yes, disconnect the negative battery terminal before starting installation.
Yes. You must drill one 2 1/8" hole in the sidewall for the harness and four 7/64" holes for mounting screws. File the edges smooth after drilling.
Test using a test light or by connecting a properly wired trailer to verify proper function before reconnecting the battery.
On Sale Today
Original price was $167.95. Current price is $137.95.


No reviews have been added for this product.
Quick Ship
In stock and ready to ship — order now!
Shipping from Eau Claire, WIFREE SHIPPING
Estimated delivery Sun, Aug 30 - Tue, Sep 1
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout