Curt Spectrum Electric Trailer Brake Control w/ 7-Way Wiring Kit For 18-25 Toyota Tundra
Model: CU27KHDual-Output 7 & 4-Way Connector (Plugs into USCAR)
Spectrum Integrated Proportional Trailer Brake Controller
Universal Trailer Brake Controller Harness with Pigtails
Installation Hardware (if required)
Installation Instructions (if required)
Installation Schematics & Diagrams (if required)
This Trailer Wiring Harness Fits The Following Vehicles:
- 2018 - 2025 Toyota Tundra All Models
CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring (QTY 1)
Manufactured by: Curt
Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer This 7-way USCAR replacement harness is designed to replace an existing USCAR plug and supply power for tail lights, turn signals, electric trailer brakes, a battery, reverse lights and brake lights, as well as a ground connection.
It features rust-free black plastic construction and comes with color-coded wires and 24" of bonded wire for easy splicing into your vehicle's wiring system This 7-way USCAR connector is a female-end socket, specifically designed for the vehicle side of the connection..
Features:
- Replacement USCAR Socket with 24" Wires (Vehicle Side)
- Replaces damaged or missing USCAR vehicle harness
- Includes 24" color-coded, bonded wires for easy installation
CURT 55774 Dual-Output Vehicle-Side 7-Pin, 4-Pin Connectors, Factory Tow Package and USCAR Socket Required (QTY 1)
Manufactured by: Curt
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring Most vehicles do not come ready to tow Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector.
This is where CURT's custom wiring connectors come into play A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle's electrical system, to readily accept a custom wiring connector.
With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided This special custom wiring connector actually provides two connector sockets for a multipurpose option It plugs into an OEM connector and offers a 4-way flat and 7-way RV blade connector.
It comes with a mounting bracket for easy installation and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment) CURT custom wiring connectors are designed to be long-lasting and simple to install They come with dust covers to keep your connector clean when not in use..
Features:
- Dual-Output 7 & 4-Way Connector (Plugs into USCAR)
- Plugs into USCAR socket to provide 4-way and 7-way trailer wiring connectors
- Fits USCAR-equipped vehicles with factory tow plugs only
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- 7-way RV blade socket adds reverse lights, electric brakes and auxiliary power
- Dust covers included to keep connectors clean when not in use
- Slit loom keeps wires contained and well protected
- Metal bracket securely mounts wiring to the vehicle or trailer hitch
- Backed by a limited one-year warranty
CURT 51170 Spectrum Original Equipment Style, Integrated Electric Trailer Brake Controller, Proportional (QTY 1)
Manufactured by: Curt
The CURT Spectrum trailer brake controller provides powerful brake operation while maintaining a clean, consistent OE look and feel on the dash of your vehicle It is comprised of a main module and a separate user interface This interface is a simple rotary knob with a push-button and ten tri-color LEDs to control and monitor all trailer brake activity.
It also features a triple-axis accelerometer for highly responsive, smooth stops on any grade The separated module and interface of the Spectrum brake controller allow it to integrate with the vehicle unlike any other The main module can be mounted behind the dash and completely out of sight.
The separate rotary knob provides a sleek, subtle interface that mounts on the dash of the vehicle wherever desired It features ten LEDs with three colors each (red, green and blue) to indicate trailer brake activity and power adjustment The rotary knob and integrated push-button allow for simple and effective operation of the control settings and manual adjustment.
The Spectrum trailer brake controller offers superior safety and helps protect the life of your vehicle and trailer with its advanced triple-axis accelerometer This integrated circuit detects the motion of the vehicle and trailer when making stops and applies the precise amount of brake power for maximum efficiency and effectiveness The three axes of the circuit also enable the brake control to compensate when going up or down a hill.
Like most CURT brake controllers, the Spectrum installs using one of our vehicle-specific quick plug harnesses It also has automated leveling and calibration capabilities to simplify and speed up the installation process The Spectrum trailer brake controller comes with mounting hardware for a complete installation..
Features:
- Controls all brake settings with a simple push-button rotary knob
- Clean, dash-mounted, OEM-style user interface with 10 tri-color LEDs
- Main module can be mounted out of sight
- Triple-axis, motion-sensing accelerometer for highly responsive, smooth stops
- Easily accessible manual override with the press of a button
- Features two installation options: drill mount or surface adhesive mount
- Automatic leveling and calibration eliminate setup requirements
- Plug-and-play install with vehicle-specific quick plug harness (sold separately)
- Operates 2-8 trailer brakes at a time (1-4 axles)
- Built-in reverse-polarity and short-circuit protection
- Compatible with low-volt, PWM, ABS, cruise control and electric over hydraulic
- Tow vehicle 'low voltage' and trailer disconnect indicators
- Limited lifetime warranty
CURT 51515 Quick Plug Universal Electric Trailer Brake Controller Wiring Harness (QTY 1)
Manufactured by: Curt
It takes a lot of power to stop a moving trailer, especially when that trailer is hauling livestock, construction materials, industrial equipment or other heavy-duty cargo Play it safe when you tow and give your trailer brakes the control they need with a CURT trailer brake controller and brake controller harness CURT quick plug brake controller harnesses make the installation of your brake controller easy.
This brake controller harness comes with pigtails to splice into your vehicle's electrical system When a CURT quick plug harness is not a compatible option for your vehicle, a quick plug with pigtails is the next best thing These harnesses feature a quick plug end to easily snap into your CURT brake control and colored wires to coordinate with the appropriate electrical function.
This universal splice-in harness comes with a protective slit loom sleeve and can easily be installed using the CURT universal wiring kit #51500 It is designed to be compatible with a variety of vehicles that are not equipped with a factory plug for a brake control..
Features:
- Splices into a vehicle for a quick plug brake controller connection
- Compatible with any CURT brake control
- Wire colors match standard brake controller harnesses
- Includes 24" of 12 gauge wire for flexible installation
- Slit-loom sleeve keeps wires contained and protected
List of Fitment Years:
2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018$367 99 $383.80 4% OFF
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$383.80 $367 99
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Product Details
- Brand: Curt
- Model: CU27KH
- Includes: Trailer Wiring 7-Way Plug w/ Bracket, Spectrum Brake Control
Compatibility Chart
| Year Range | Make | Model | Style |
|---|
Dual-Output 7 & 4-Way Connector (Plugs into USCAR)
Spectrum Integrated Proportional Trailer Brake Controller
Universal Trailer Brake Controller Harness with Pigtails
Installation Hardware (if required)
Installation Instructions (if required)
Installation Schematics & Diagrams (if required)
This Trailer Wiring Harness Fits The Following Vehicles:
- 2018 - 2025 Toyota Tundra All Models
CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring (QTY 1)
Manufactured by: Curt
Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer This 7-way USCAR replacement harness is designed to replace an existing USCAR plug and supply power for tail lights, turn signals, electric trailer brakes, a battery, reverse lights and brake lights, as well as a ground connection.
It features rust-free black plastic construction and comes with color-coded wires and 24" of bonded wire for easy splicing into your vehicle's wiring system This 7-way USCAR connector is a female-end socket, specifically designed for the vehicle side of the connection..
Features:
- Replacement USCAR Socket with 24" Wires (Vehicle Side)
- Replaces damaged or missing USCAR vehicle harness
- Includes 24" color-coded, bonded wires for easy installation
CURT 55774 Dual-Output Vehicle-Side 7-Pin, 4-Pin Connectors, Factory Tow Package and USCAR Socket Required (QTY 1)
Manufactured by: Curt
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring Most vehicles do not come ready to tow Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector.
This is where CURT's custom wiring connectors come into play A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle's electrical system, to readily accept a custom wiring connector.
With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided This special custom wiring connector actually provides two connector sockets for a multipurpose option It plugs into an OEM connector and offers a 4-way flat and 7-way RV blade connector.
It comes with a mounting bracket for easy installation and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment) CURT custom wiring connectors are designed to be long-lasting and simple to install They come with dust covers to keep your connector clean when not in use..
Features:
- Dual-Output 7 & 4-Way Connector (Plugs into USCAR)
- Plugs into USCAR socket to provide 4-way and 7-way trailer wiring connectors
- Fits USCAR-equipped vehicles with factory tow plugs only
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- 7-way RV blade socket adds reverse lights, electric brakes and auxiliary power
- Dust covers included to keep connectors clean when not in use
- Slit loom keeps wires contained and well protected
- Metal bracket securely mounts wiring to the vehicle or trailer hitch
- Backed by a limited one-year warranty
CURT 51170 Spectrum Original Equipment Style, Integrated Electric Trailer Brake Controller, Proportional (QTY 1)
Manufactured by: Curt
The CURT Spectrum trailer brake controller provides powerful brake operation while maintaining a clean, consistent OE look and feel on the dash of your vehicle It is comprised of a main module and a separate user interface This interface is a simple rotary knob with a push-button and ten tri-color LEDs to control and monitor all trailer brake activity.
It also features a triple-axis accelerometer for highly responsive, smooth stops on any grade The separated module and interface of the Spectrum brake controller allow it to integrate with the vehicle unlike any other The main module can be mounted behind the dash and completely out of sight.
The separate rotary knob provides a sleek, subtle interface that mounts on the dash of the vehicle wherever desired It features ten LEDs with three colors each (red, green and blue) to indicate trailer brake activity and power adjustment The rotary knob and integrated push-button allow for simple and effective operation of the control settings and manual adjustment.
The Spectrum trailer brake controller offers superior safety and helps protect the life of your vehicle and trailer with its advanced triple-axis accelerometer This integrated circuit detects the motion of the vehicle and trailer when making stops and applies the precise amount of brake power for maximum efficiency and effectiveness The three axes of the circuit also enable the brake control to compensate when going up or down a hill.
Like most CURT brake controllers, the Spectrum installs using one of our vehicle-specific quick plug harnesses It also has automated leveling and calibration capabilities to simplify and speed up the installation process The Spectrum trailer brake controller comes with mounting hardware for a complete installation..
Features:
- Controls all brake settings with a simple push-button rotary knob
- Clean, dash-mounted, OEM-style user interface with 10 tri-color LEDs
- Main module can be mounted out of sight
- Triple-axis, motion-sensing accelerometer for highly responsive, smooth stops
- Easily accessible manual override with the press of a button
- Features two installation options: drill mount or surface adhesive mount
- Automatic leveling and calibration eliminate setup requirements
- Plug-and-play install with vehicle-specific quick plug harness (sold separately)
- Operates 2-8 trailer brakes at a time (1-4 axles)
- Built-in reverse-polarity and short-circuit protection
- Compatible with low-volt, PWM, ABS, cruise control and electric over hydraulic
- Tow vehicle 'low voltage' and trailer disconnect indicators
- Limited lifetime warranty
CURT 51515 Quick Plug Universal Electric Trailer Brake Controller Wiring Harness (QTY 1)
Manufactured by: Curt
It takes a lot of power to stop a moving trailer, especially when that trailer is hauling livestock, construction materials, industrial equipment or other heavy-duty cargo Play it safe when you tow and give your trailer brakes the control they need with a CURT trailer brake controller and brake controller harness CURT quick plug brake controller harnesses make the installation of your brake controller easy.
This brake controller harness comes with pigtails to splice into your vehicle's electrical system When a CURT quick plug harness is not a compatible option for your vehicle, a quick plug with pigtails is the next best thing These harnesses feature a quick plug end to easily snap into your CURT brake control and colored wires to coordinate with the appropriate electrical function.
This universal splice-in harness comes with a protective slit loom sleeve and can easily be installed using the CURT universal wiring kit #51500 It is designed to be compatible with a variety of vehicles that are not equipped with a factory plug for a brake control..
Features:
- Splices into a vehicle for a quick plug brake controller connection
- Compatible with any CURT brake control
- Wire colors match standard brake controller harnesses
- Includes 24" of 12 gauge wire for flexible installation
- Slit-loom sleeve keeps wires contained and protected
List of Fitment Years:
2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018| Default | |
| Brand | Curt |
| BC Connector Install Type | Hardwire |
| Brake Controller Type | Proportional Inertia Based |
| Trailer Wiring Output Type | Dual 4-Flat+7-Way Round |
| Compatibility | All Curt Brake Controllers |
| Self Leveling | Yes |
| Trailer Wiring Install Style | Hardwire |
| Display Type | Indicator Light Only |
| Number of Axles | 1 to 4 |
| Wiring Type | Replacement USCAR Socket w/ 24" Lead |
| Warranty | Lifetime |
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