Tekonsha Tow Harness, 7 Way Complete Kit TK22126TekonshaOriginal price was $316.25. Current price is $226.33.In Stock
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2003 - 2014 Chevrolet Express 1500
Confirmed to Fit
2003 - 2025 Chevrolet Express 2500
Confirmed to Fit
2003 - 2025 Chevrolet Express 3500
Confirmed to Fit
2003 - 2014 GMC Savana 1500
Confirmed to Fit
2003 - 2025 GMC Savana 2500
Confirmed to Fit
2003 - 2025 GMC Savana 3500
Confirmed to Fit
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Tekonsha Tow Harnesses are the replacement for your factory electrical connector to the back of your vehicle. These harnesses are used to link the wiring from your vehicle to the trailer when towing. Tekonsha Tow Harnesses feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of Replacement Tow Harnesses. Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 22131 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 6.4 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 7 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 7 |
| WIRE GAUGE: | 18 AWG, .85 AVSS |
| POWER LEAD REQUIRED: | YES |
| ELECTRICAL SYSTEM TYPE: | 2-WIRE SYSTEM |
| HARDWARE INCLUDED: | NO |
| AMPERAGE: | 30 A |
Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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The Tekonsha Tow Harness, 7-Way Complete Kit TK22131 (Part #TK22131) fits 2003-2014 Chevrolet Express 1500 models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the Tekonsha Tow Harness, 7-Way Complete Kit TK22131 (Part #TK22131) is designed to fit the 2003-2014 Chevrolet Express 1500.
The Tekonsha Tow Harness, 7-Way Complete Kit TK22131 (Part #TK22131) fits the following vehicles: 2003-2014 Chevrolet Express 1500; 2003-2025 Chevrolet Express 2500; 2003-2025 Chevrolet Express 3500; 2003-2014 GMC Savana 1500; 2003-2025 GMC Savana 2500; 2003-2025 GMC Savana 3500. Always verify your specific year, make, and model before ordering.
The Tekonsha Tow Harness, 7-Way Complete Kit TK22131 (Part #TK22131) Drilling is required for installation. Basic hand tools are typically all you need.
The N22131-037 is a 7-way trailer wiring harness kit designed for conversion vans and cargo vans. It provides electrical connections for trailer lights (tail, brake, turn signals, backup, and trailer brakes) and includes a Modulite® lighting module, brake control harness connection point, and power distribution with fused circuits. The kit enables safe towing by integrating your vehicle's lighting and brake systems with a trailer.
Yes, the kit is designed for both cargo vans and conversion vans. However, installation requirements differ: cargo van installation does not require trim panel removal, while conversion van installation requires partial removal of the vehicle's rear trim panels to access the taillight wiring connectors for module installation.
Your vehicle must have rear combination lights (driver side and passenger side) and a CHIMSL (Center High Mount Stop Light). The kit connects to these existing lights to integrate trailer lighting. The manual does not specify which vehicle makes and models have these components.
Required tools include: 10mm socket or wrench, Phillips head #2 screwdriver, wire strippers/wire crimpers, wire cutters, trim panel puller, Torx T-25 and T-30 screwdrivers, 2" hole saw and drill, ratchet, heat gun, tester or volt meter, and metal primer paint. A 3/32" drill bit is also needed for the ground wire hole.
The kit includes: 24 cable ties (8.5"), 1 cable tie (14.5"), 1 wire tap, 1 fuse (25 AMP), 2 fuses (30 AMP), 4 ring terminals, 3 fuse holders, 4 yellow butt connectors, 2 blue butt connectors, 1 wire lock, 1 7-way socket, 1 double-sided tape, 1 grommet (2"), 1 red 18 GA wire, and Perma-Seal butt connectors for the body harness. The kit does not include a brake control module, mounting bracket for the 7-way connector, metal primer, paint, or silicone sealant.
No, the brake control module is not included. The kit includes a brake control harness designed to work with Tekonsha® brake controls such as models 90195, 90885, or 90160, which must be purchased separately. Visit www.tekonsha.com for details on compatible modules and where to buy.
Yes, you must disconnect and isolate the vehicle's negative battery cable using a 10mm socket or wrench before beginning installation. This is a required safety step.
Yes, conversion van installation requires partial removal of the vehicle's rear trim panels to access the taillight wiring connectors for module installation. Cargo van installation does not require trim panel removal.
Starting on the passenger side, locate the connectors matching the end of the T-One® Connector. Insert the T-One® Connector end containing the green wire between the vehicle and the taillight connector. Ensure all connector surfaces are clean and free of dirt. Repeat on the driver side with the yellow wire. The T-One® Connector ends must be fully inserted and locked in place.
Mount the T-One® Connector black box using the double-sided tape provided. Clean the flat mount surface area using a 50-50 mixture of rubbing alcohol and water before mounting. Locate a suitable area near the rear of the vehicle in the cargo area.
You may drill a hole or use an existing ground stud. If drilling, create a 3/32" hole near the black box and secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area before securing the ground wire. Verify what is behind any surface prior to drilling to avoid damage to the vehicle and/or personal injury.
Yes, you must drill a 2" hole near the jack mounting location on the passenger side of the cargo area. Be sure to avoid drilling through additional materials beyond the intended hole. Deburr and coat the metal with primer. Verify what is behind any surface prior to drilling to avoid damage to the vehicle and/or personal injury. Do not drill into any exposed surfaces.
Yes, you must carefully slit the small grommet underneath the van body on the passenger side floor pan area to allow the black jacketed cable to pass through. After routing the cable, install a second 2" grommet over the jacketed cable in the 2" hole. Seal altered grommets with silicone (sealant not provided).
Locate the wires connected to the CHIMSL. Using a test light, determine the +12V wire by pressing the brake—the test light will illuminate when the brake is pressed. Using the wire tap provided, connect the 18 gauge red wire to the +12V CHIMSL wire. Using a blue butt connector, connect the other end to the 18 gauge red wire of the body harness.
The 7-way connector includes: black (12V battery), brown (right/stop), red (left/stop), white (ground), blue (trailer brakes), yellow (backup), and green (tail lights). Refer to the wire insertion detail diagram in the manual for pin positions.
Route the brake control harness white, blue, and black wires through an existing grommet on the firewall into the engine compartment. Create a small hole in the grommet to pass the wires through. The white wire connects to vehicle chassis ground, the black wire connects to the positive battery post, and the blue wire connects to the body harness blue wire.
The kit uses three fuses: one 25 AMP fuse for the tow harness power module, and two 30 AMP fuses—one for the 7-way harness and one for the brake control power. The 25 AMP fuse is the maximum rating for the power module; the 30 AMP fuses are the maximum ratings for the 7-way harness and brake control.
Route the body harness black wire to the vehicle's positive battery post underneath the hood. Connect the 30 AMP fuse holder labeled '7-way' with a supplied butt connector to the fuse holder. Connect the supplied ring terminal to the opposite end of the fuse holder. Ensure the 30 AMP fuse is removed, then connect the ring terminal to the positive battery post. Refer to the wiring detail diagram for reference.
Apply heat directly to the butt connectors using a heat gun or other heat source, working from the center out to the edges, until the tubing recovers and the adhesive flows. Allow the connectors to cool before inspecting the splice and checking integrity.
Wear safety glasses during installation. Verify what is behind any surface prior to drilling to avoid damage to the vehicle and/or personal injury. Do not drill into any exposed surfaces or the vehicle floor or bed. If routing wire through a grommet and along the exterior of the vehicle, avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Do not exceed stated product ratings to avoid circuit overload and fire hazard.
Test and verify the installation with a test light or trailer once installed. Reconnect the vehicle's negative battery cable. Check that all functions operate correctly: tail lights, brake lights, turn signals, backup lights, and trailer brake output (if brake control is installed).
Secure the harness with the cable ties provided to prevent damage or rattling, avoiding areas that would pinch, cut, or melt the wire. Replace all trim panels, grommets, or other components that were removed. Seal altered grommets with silicone. Reconnect the vehicle's negative battery cable. Test and verify the installation with a test light or trailer.
The kit fits conversion vans and cargo vans with rear combination lights and a CHIMSL (Center High Mount Stop Light). Conversion vans require trim panel removal; cargo vans do not. Verify your vehicle has these components before purchasing.
You must purchase a Tekonsha® brake control module separately (models 90195, 90885, or 90160). You also need to supply metal primer, paint, silicone sealant, and a mounting bracket for the 7-way connector (bracket not included).
Yes, you must drill a 2" hole for the body harness cable and a 3/32" hole for the ground wire. Verify what is behind any surface before drilling to avoid damage to the vehicle.
The tow harness power module uses a 25 AMP fuse (maximum rating). The 7-way harness and brake control each use 30 AMP fuses (maximum rating).
Yes, you must disconnect and isolate the vehicle's negative battery cable using a 10mm socket or wrench before beginning installation.
Overloading circuits can cause fires. Do not exceed stated product ratings. Wear safety glasses during installation and verify what is behind any surface before drilling.
First, ensure the T-One® Connector ends are fully inserted and locked in place. Remove the tow harness power module 25 AMP fuse for 10 seconds and repeat the test. Next, check chassis grounds and ensure ring terminals are in full contact with the vehicle's chassis. Remove the 25 AMP fuse for 10 seconds and repeat the test.
The installation may have activated circuit protection. Start the vehicle and turn all functions off: tail (headlights), brake, and turns. Remove the tow harness power module 25 AMP fuse for 10 seconds and repeat the test. Ensure the 25 AMP fuse is fully inserted into the fuse holder with no breaks. Verify the fuse holder is connected properly to the positive battery post. Using a tester or volt meter, check for voltage on either side of the yellow butt connector near the module. Remove the 25 AMP fuse for 10 seconds and repeat the test.
6 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2003 - 2014 | Chevrolet Express 1500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2003 - 2025 | Chevrolet Express 2500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2003 - 2025 | Chevrolet Express 3500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2003 - 2014 | GMC Savana 1500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2003 - 2025 | GMC Savana 2500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2003 - 2025 | GMC Savana 3500 | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
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May 22, 2023