Diode Dynamics C1R Hitch Mount Harness for 2019–2023 GMC Sierra 1500 – DD4147

Features Powers Diode Dynamics C1R HitchMount LED pods. Connects directly to your vehicle's factory connectors under the bumper. High capacity 10AWG wiring. Dual Deutsch DT output connectors. Overview Easy Operation. This wiring harness allows you to connect your Diode Dynamics C1R HitchMount LED pods to your vehicle's factory wiring for easy installation and operation. When paired with our C1R HitchMount LED pods, this harness allows your lights to operate as an additional red accent light with your tail lights, activates an additional 4th brake light anytime you apply your brakes, and then automatically switches to a high-power backup light when your vehicle is in reverse. Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike all other LED distributors, we assemble and engineer products in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you'd like to discuss your lighting project! This wiring harness allows you to connect your Diode Dynamics C1R HitchMount LED pods to your vehicle's factory wiring for easy installation and operation. Included Quantity: One (1)

• Allows you to power a C1R LED pod in the GMC Sierra 1500 trailer hitch receiver
• Adds reverse light 4th brake light and additional running light
• Designed and assembled in USA
• Simple 5-minute installation
• Optional SafetyStrobe

The Diode Dynamics C1R Hitch Mount Harness connects C1R HitchMount LED pods directly to the factory wiring connectors beneath the bumper of select 2019–2023 GMC Sierra 1500 models. Designed for straightforward installation, this harness lets the C1R LED pod integrate with the truck’s existing lighting functions without requiring extensive wiring modifications.

When paired with a compatible Diode Dynamics C1R HitchMount LED pod, the harness provides multiple lighting functions. The pod operates as an additional red accent or running light, illuminates as a fourth brake light when the brake pedal is applied, and automatically switches to a high-output white backup light when the vehicle is placed in reverse. The harness uses high-capacity 10 AWG wiring and dual Deutsch DT output connectors for dependable power delivery and secure connections.

Designed and assembled in the United States, the Diode Dynamics DD4147 offers a simple installation that can typically be completed in approximately five minutes. It also supports the optional SafetyStrobe feature when used with compatible equipment. This harness is intended specifically for powering a C1R LED pod in the GMC Sierra 1500 trailer hitch receiver and is supplied as one complete wiring harness.

Key Product Specifications and Technical Data

• Brand: Diode Dynamics
• Part Number: DD4147
• Application: C1R HitchMount LED pod wiring harness
• Vehicle Fitment: 2019–2023 GMC Sierra 1500
• Connection Type: Direct factory connector integration
• Wiring: High-capacity 10 AWG construction
• Output Connectors: Dual Deutsch DT connectors
• Lighting Functions: Running light, fourth brake light, and reverse light operation

What’s Included

• One Diode Dynamics C1R Hitch Mount Harness

Features:

• C1R LED Pod Compatibility: Powers a Diode Dynamics C1R HitchMount LED pod installed in the GMC Sierra 1500 trailer hitch receiver.
• Multi-Function Lighting: Adds a red running or accent light, a fourth brake light, and a high-power reverse light.
• Factory Connector Integration: Connects directly to the vehicle’s factory wiring beneath the bumper for a clean installation.
• Heavy-Duty Construction: Uses high-capacity 10 AWG wiring and dual Deutsch DT output connectors for reliable performance.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1