Electrical for 2018 GMC Sierra 2500 HD
Categories
- Back Panel
- Body Mounting
- Bumper & Components - Front
- Bumper & Components - Rear
- Cargo Lamps
- Center Console
- Center Pillar
- Clearance Lamps
- Cluster & Switches
- Cowl
- Door & Components
- Driver Seat Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Panels
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hinge Pillar
- Hood & Components
- Instrument Panel
- Instrument Panel Components
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Interior Trim - Roof
- Jack & Components
- Labels
- Lock & Hardware
- Lock Pillar
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Pick UP Box
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Anti-Theft System
- Automatic Transmission
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Combination Tail Lamps
- Communication System Components
- Controls
- Diesel Components
- Electrical Components
- Entertainment System Components
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Mirrors
- Navigation System
- Park & Side Marker Lamps
- Park & Signal Lamps
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Seat Belt
- Senders
- Side Marker Lamps
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wiring Harness
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Panel
- Body Mounting
- Bumper & Components - Front
- Bumper & Components - Rear
- Cargo Lamps
- Center Console
- Center Pillar
- Clearance Lamps
- Cluster & Switches
- Cowl
- Door & Components
- Driver Seat Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Panels
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hinge Pillar
- Hood & Components
- Instrument Panel
- Instrument Panel Components
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Interior Trim - Roof
- Jack & Components
- Labels
- Lock & Hardware
- Lock Pillar
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Pick UP Box
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Anti-Theft System
- Automatic Transmission
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Combination Tail Lamps
- Communication System Components
- Controls
- Diesel Components
- Electrical Components
- Entertainment System Components
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Mirrors
- Navigation System
- Park & Side Marker Lamps
- Park & Signal Lamps
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Seat Belt
- Senders
- Side Marker Lamps
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wiring Harness
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
Browse Categories
Select category
- Back Panel
- Body Mounting
- Bumper & Components - Front
- Bumper & Components - Rear
- Cargo Lamps
- Center Console
- Center Pillar
- Clearance Lamps
- Cluster & Switches
- Cowl
- Door & Components
- Driver Seat Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Panels
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hinge Pillar
- Hood & Components
- Instrument Panel
- Instrument Panel Components
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Interior Trim - Roof
- Jack & Components
- Labels
- Lock & Hardware
- Lock Pillar
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Pick UP Box
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Anti-Theft System
- Automatic Transmission
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Combination Tail Lamps
- Communication System Components
- Controls
- Diesel Components
- Electrical Components
- Entertainment System Components
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Mirrors
- Navigation System
- Park & Side Marker Lamps
- Park & Signal Lamps
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Seat Belt
- Senders
- Side Marker Lamps
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wiring Harness
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Panel
- Body Mounting
- Bumper & Components - Front
- Bumper & Components - Rear
- Cargo Lamps
- Center Console
- Center Pillar
- Clearance Lamps
- Cluster & Switches
- Cowl
- Door & Components
- Driver Seat Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Pick UP Box
- Exterior Trim - Quarter Panel
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Panels
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hinge Pillar
- Hood & Components
- Instrument Panel
- Instrument Panel Components
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Interior Trim - Roof
- Jack & Components
- Labels
- Lock & Hardware
- Lock Pillar
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Passenger Seat Components
- Pick UP Box
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Rocker
- Rocker Panel
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Anti-Theft System
- Automatic Transmission
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Combination Tail Lamps
- Communication System Components
- Controls
- Diesel Components
- Electrical Components
- Entertainment System Components
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- Lane Departure Warning
- License Lamps
- Mirrors
- Navigation System
- Park & Side Marker Lamps
- Park & Signal Lamps
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Relays
- Seat Belt
- Senders
- Side Marker Lamps
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tail Lamps
- Tire Pressure Monitor Components
- Wipers
- Wiring Harness
- A/C Accumulator/Receiver Drier
- A/C Clutch & Compressor
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Controls
- Evaporator & Heater Components
- Filters
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
Electrical for 2018 GMC Sierra 2500 HD
Related Parts
Part # / Description / Price
Price
Trailer Wiring Harness Adapter (7Pin To 12V) 
GM
GM Notes: 7 pin to 12 Volt Auxiliary Adapter
MSRP $50.00
$43.03
MSRP $50.00
$43.03
Trailer Wiring Harness Adapter 7-Pin To 4-Way GM
GM Notes: 7 Pin to 4-Way Flat and 7 Pin to 12 Volt Auxiliary Adapter
Trailering Electrical Extension By Curt GM
GM Notes: Genuine Accessories
Description: Easily provide power to your trailer with a GMC Accessories Electrical Extension. It contains 4-way and 7-way connections for optimal convenience. Easily provide power to your trailer with a Chevrolet Accessories Electrical Extension. Routes a 7-way RV blade socket into truck bed while retaining use of 7-way RV blade at rear of vehicle. Non-GM warranty. Warranty by CURT®. For information please contact 1-800-287-8634.
7-Way Trailer Wiring Electrical Adapter GM
GM Notes: Genuine Accessories
Description: It will allow you to connect and adapt your vehicles wiring system to your trailer wiring system, helping you to communicate your actions to other drivers. Sync your trailer lights with your vehicles lights through the Trailer Wiring Electrical Adapter. It will allow you to connect and adapt your vehicle’s wiring system to your trailer wiring system, helping you to communicate your actions to other drivers. For more information, contact your dealer..