2004 GMC Sierra 1500 Electrical, Lighting and Body Parts
Choose your Part Name for your 2004 GMC Sierra 1500
Accessory Power Relay
Air Bag Clockspring
Air Bag Impact Sensor
Antenna Adapter
Back Up Light Bulb
Body Control Module
Brake Light Bulb
Brake Light Control Module
Brake Light Switch
Cargo Area Light
Center High Mount Stop Light
Center High Mount Stop Light Bulb
Center High Mount Stop Light Cover
Combination Switch
Cornering Light Assembly
Courtesy Light Bulb
Daytime Running Light Bulb
Dome Light
Dome Light Bulb
Door Window Switch
Engine Compartment Light Bulb
Exterior Multi-Purpose LED
Flood Light
Fog Light
Fog Light Assembly
Fog Light Bulb
Fog Light Relay
Glove Box Light Bulb
Headlight Assembly
Headlight Bulb
Headlight Conversion Kit
Headlight Fastener Clip
Headlight Set
Headlight Wiring Harness
Horn Relay
Keyless Entry Transmitter
License Plate Light
License Plate Light Bulb
License Plate Light Lens
Light Bar
Light Bar Mounting Kit
Luggage Compartment Light Bulb
Map Light Bulb
Multi-Purpose Fuse
Multi-Purpose Light Bulb
Parking Light Bulb
Power Window Motor
Power Window Motor and Regulator Assembly
Roof Marker Light
Side Marker Light Bulb
Speedometer Cable
Speedometer Calibrator
Tail Light Bulb
Tail Light Cover
Tail Light Guard
Tail Light Set
Trailer Brake System Connector
Trailer Connector Kit
Trailer Wiring Adapter Connector
Trailer Wiring Harness
Trunk Light Bulb
Trunk or Cargo Area Light
Turn Signal / Combination Lever
Turn Signal / Parking Light Assembly
Turn Signal Light
Turn Signal Light Bulb
Underbody Light Kit
Vehicle Speed Sensor
Vehicle-Mounted Spotlight
Wheel Accent Light
Image
Product
Price
- Replacement USCAR Socket with 24in. Wires (Vehicle Side)
- 24 in. Bonded Wire For Models w/Factory Tow Package
- CURT 56229 Replacement USCAR Connector Wiring Harness; 24-Inch Wires; 7 Pin Trailer Wiring
- 7-Way USCAR Electrical Connector
- Product Attributes:
- WARNING CA Proposition 65: Yes
-
Features:
- Replaces Damaged Or Missing Uscar Vehicle Harnesses
- Includes 24 In. Color-Coded Bonded Wires For Easy Installation
- Made In USA
- Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailers 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 in. of bonded wire for easy splicing into your vehicles wiring system. This 7-way USCAR connector is a female-end socket, specifically designed for the vehicle side of the connection.
Additional Fitment Information:
| Vehicle | Sub Model |
|---|---|
| 2004 - GMC Sierra 1500 | SLE |
- Dual-Output 6/4-Way Connector (Plugs into USCAR)
- 6-Way And 4-Way; Plugs Into USCAR For Models w/Factory Tow Package
- CURT 55664 Dual-Output Vehicle-Side 6-Pin; 4-Pin Connectors; Factory Tow Package and USCAR Socket Required
- OEM Vehicle To Trailer Connector w/Harness
- Product Attributes:
- Output Type: 4-way Flat
- Connector Style: 6 Pole Round And 4 Flat
- WARNING CA Proposition 65: Yes
- Connector Type: Vehicle Side
-
Features:
- Plugs Into Connector To Provide A 4-Way And 6-Way Multi-Socket
- Fits Uscar-Equipped Vehicles w/Factory Tow Plugs
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- 4-Way Flat Connects Tail Lights Brake Lights And Turn Signals
- 6-Way Round Socket Adds Connection For Electric Brakes
- Dust Covers Included To Keep Connectors Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- Bracket Securely Mounts Wiring To The Vehicle Or Trailer Hitch
- Made In USA
- 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 CURTs 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 vehicles 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 USCAR connector and offers a 4-way flat and 6-way round connector (see application info to verify fitment with your vehicle). It also comes with a mounting bracket for easy installation. 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.
Additional Fitment Information:
| Vehicle | Sub Model |
|---|---|
| 2004 - GMC Sierra 1500 | SLE |
- Dual-Output 7/4-Way Connector (Plugs into USCAR)
- 7-Way And 4-Way For Models w/Factory Tow Package
- CURT 55774 Dual-Output Vehicle-Side 7-Pin; 4-Pin Connectors; Factory Tow Package and USCAR Socket Required
- OEM Vehicle To Trailer Connector w/Harness
- Product Attributes:
- Output Type: 4-way Flat
- Connector Style: 7 Blade And 4 Flat
- WARNING CA Proposition 65: Yes
- Connector Type: Vehicle Side
-
Features:
- Plugs Into Connector To Provide A 4-Way And 7-Way Multi-Socket
- Fits Uscar-Equipped Vehicles w/Factory Tow Plugs
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- 4-Way Flat Connects Tail Lights Brake Lights And Turn Signals
- 7-Way Round Socket Adds Reverse Lights Electric Brakes
- Dust Covers Included To Keep Connectors Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- Bracket Securely Mounts Wiring To The Vehicle Or Trailer Hitch
- Made In USA
- 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 CURTs 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 vehicles 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.
Additional Fitment Information:
| Vehicle | Sub Model |
|---|---|
| 2004 - GMC Sierra 1500 | SLE |
- Replacement OE 4-Way Flat Socket (Plugs into USCAR)
- Replacement; 2-Wire System; OE 4-Way Flat; Plugs Into Uscar For Models w/Factory Tow Package
- CURT 55515 Replacement Vehicle-Side 4-Pin Connector; Factory Tow Package and USCAR Socket Required
- Custom Wiring Connector
- Product Attributes:
- Output Type: 4-way Flat
- WARNING CA Proposition 65: Yes
-
Features:
- Plugs Into Existing Vehicle Socket To Provide 4-Way Flat Socket
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- 4-Way Flat Connects Tail Lights Brake Lights And Turn Signals
- Dust Cover Included To Keep Connector Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- Backed By A Limited One-Year Warranty
- Made In USA
- 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 CURTs 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 vehicles 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 custom wiring connector provides a 4-way flat connector socket and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment with your vehicle). 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.
Additional Fitment Information:
| Vehicle | Sub Model |
|---|---|
| 2004 - GMC Sierra 1500 | SLE |
- Replacement OE 7-Way RV Blade Socket (Twists into USCAR)
- Twist-In For Models w/Factory Tow Package
- CURT 56415 Replacement Twist-Lock Vehicle-Side RV Blade 7-Pin Connector; Factory Tow Package and USCAR Socket Required
- Replacement 7-Way RV Blade OEM Socket
- Product Attributes:
- WARNING CA Proposition 65: No
-
Features:
- Plugs Into OEM Socket To Provide 7-Way Rave Blade
- Twist-In Plug-And-Play Design Eliminates The Need For Splicing
- 7-Way Connects Tail Brake Reverse Turn Signals Brakes
- Spring-Loaded Dust Cover Keeps Connector Clean When Not In Use
- Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailers 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 OEM USCAR replacement connector is designed to plug into a twist-in OEM vehicle socket and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way RV blade connector is a female-end socket, specifically designed for the vehicle side of the connection (see application info to verify fitment with your vehicle).
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
- 10ft. Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed)
- 7 Way; 10 ft.; For 5th Wheel or Gooseneck In Bed Connection Install Time 45 Minutes
- CURT 56000 10-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension; Select Chevrolet; Dodge; Ford; GMC; Nissan; Ram; Toyota
- Custom Wiring Harness Extension
- Product Attributes:
- WARNING CA Proposition 65: Yes
- Install Time: 45 Minutes
-
Features:
- Routes A 7-Way Into Truck Bed While Retaining Use Of Rear Socket
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- Allows For Easy Connection Of 5Th Wheel Or Gooseneck Wiring
- 7-Way Connects Tail Brake Reverse Turn Signals Brakes
- 10 ft. Extension w/Right-Angle Plug For Easy Installation
- Spring-Loaded Dust Cover Keeps Connector Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- 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.
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
- 7ft. Custom Wiring Extension Harness (Adds 7-Way RV Blade to Truck Bed; Packaged
- 7 Way; 7 ft.; For 5th Wheel or Gooseneck In Bed Connection; Packaged Install Time 45 Minutes
- CURT 56070 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension; Select Chevrolet; Dodge; Ford; GMC; Nissan; Ram; Toyota
- Custom Wiring Harness Extension
- Product Attributes:
- WARNING CA Proposition 65: Yes
- Install Time: 45 Minutes
-
Features:
- Routes A 7-Way Into Truck Bed While Retaining Use Of Rear Socket
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- Allows For Easy Connection Of 5Th Wheel Or Gooseneck Wiring
- 7-Way Connects Tail Brake Reverse Turn Signals Brakes
- 7 ft. Extension w/Right-Angle Plug For Easy Installation
- Spring-Loaded Dust Cover Keeps Connector Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- 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 7. It is compatible with a 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.
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
- Plug-In Simple® Multi-Tow® 6-Round And 4-Flat Harness
- Includes Mounting Bracket
- Plug-In Simple® Multi-Tow® 6-Round And 4-Flat Harness; Includes Mounting Bracket;
- Plug-In Simple(R) Multi-Tow(R) 6-Round And 4-Flat Harness
- Product Attributes:
- Outer Finish Color: Black
- Connector Style: 6 Pole Round And 4 Flat
- Estimated Install Time (Hour): 0.50
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals Including Dehp; Which Is Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov
- Connector Type: Vehicle Side
- Install Method: Direct-fit
-
Features:
- Multi-Tow® Provides Multiple Towing Options From One Connector
- Plug-In Simple® Wiring Kit
- Utilizes OEM Connectors Create An Exact Fit
- Includes Mounting Bracket And Hardware
- Impact And Corrosion Resistant
- Weatherproof Lid
- Fits In Standard 7 Blade Bracket
- Includes Step-By-Step Instructions
- 90 Day Warranty From The Date Of Original Purchase
- Tow more than one trailer? Multi-Tow(R) design feature adds multiple towing options from one connector by providing sockets for towing both 6 round and 4 flat trailers. This connector is Plug-In Simple!(R) with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing.
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
- Endurance™ 5th Wheel Vehicle To Trailer Wiring Harness
- Mounts In Truck Bed For Easy Connection; Retains Electrical Functions At Rear Of Tow Vehicle; 3 Year Warranty
- Endurance™ 5th Wheel Vehicle To Trailer Wiring Harness; Mounts In Truck Bed For Easy Connection; Retains Electrical Functions At Rear Of Tow Vehicle; 3 Year Warranty;
- Endurance(TM) 5th Wheel Vehicle To Trailer Wiring Harness
- Product Attributes:
- Outer Finish Color: Black
- Connector Style: 7 Blade And 4 Flat
- Estimated Install Time (Hour): 1.50
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals Including Dehp; Which Is Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov
- Connector Type: Vehicle Side
- Install Method: Direct-fit
-
Features:
- Endurance™ Professional Grade
- Plug-In Simple® Wiring Kit
- 90 Degree Angle Connector For Hard To Reach Places
- 7 Blade With Robust 180 Degree Hinge
- Wire Length Is 10 ft.
- Convoluted Tubing Protects Wire From Harm
- Includes Step-By-Step Instructions
- 90 Day Warranty From The Date Of Original Purchase
- By incorporating Endurance(TM) design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. This 5th wheel harness is Plug-In Simple!(R) with no cutting or splicing, saving you time by utilizing OEM connectors to create an exact fit installation and maximum weatherproofing while retaining the use of the factory 7 Blade in the bumper . Mounting a secondary 7 Blade in your truck bed makes 5th wheel and gooseneck hookups easier and more convenient.
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
- 7ft. Custom Wiring Extension Harnesses (Adds 7-Way RV Blade to Truck Bed; 10-Pac
- 7 Way; 7 ft.; For 5th Wheel or Gooseneck In Bed Connection; Pack of 10 Install Time 45 Minutes
- CURT 56070010 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extensions; Select Chevy; Dodge; Ford; GMC; Nissan; Ram; Toyota; 10-Pk
- Custom Wiring Harness Extension
- Product Attributes:
- WARNING CA Proposition 65: Yes
- Install Time: 45 Minutes
-
Features:
- Routes A 7-Way Into Truck Bed While Retaining Use Of Rear Socket
- Simple Plug-And-Play Design Eliminates The Need For Splicing
- Allows For Easy Connection Of 5Th Wheel Or Gooseneck Wiring
- 7-Way Connects Tail Brake Reverse Turn Signals Brakes
- 7 ft. Extension w/Right-Angle Plugs For Easy Installation
- Spring-Loaded Dust Cover Keeps Connector Clean When Not In Use
- Slit Loom Keeps Wires Contained And Well Protected
- 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 or trailer hitch. 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. These CURT extension harnesses are designed to work with 7-way RV blade connectors and come with 7 of wire. Ten harnesses are included in each package. They are 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.
Additional Fitment Information:
| Vehicle |
|---|
| 2004 - GMC Sierra 1500 |
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