Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
2003 FORD Electrical Wiring
Showing In Stock Items. Show All 132 Items.
Not Showing Customizable Items. View Customizable Items.
Derale Electric Fan Relays
If you're installing an aftermarket electric fan, then you will need one of these Derale Performance electric fan relays. They feature a heavy-duty 40 amp rating and some include a color-coded wiring harness for an easy installation.
( 79 )
$28.65
Summit Racing™ Oxygen Sensor Extension Harnesses
Summit Racing™ oxygen sensor extension harnesses are a must with full-length headers and other specific applications. These extension harness sets feature a direct plug-in design to eliminate the cutting and lengthening of oxygen sensor wires, along with high-temperature sleeving to help protect the wires from heat. They're available in a variety of plug styles, harness lengths, and other options. Order the pair recommended for your vehicle.
( 14 )
$50.99
AutoLoc Electric Window Crank Switches
AutoLoc electric window crank switches allow you to operate your power windows with your vehicle's original window crank handle. This eliminates the need to mount aftermarket switches in your door panels. To operate your electric window, simply rotate the window crank up or down 15 degrees. To ensure safety, AutoLoc offers a positive dead lock stop and a return-to-center spring design, which creates a heavy-duty system that won't break or snap. These switches are made of billet aluminum and stainless steel fasteners, and will work with your factory window crank to give your vehicle a traditional look. They're available in multiple shaft styles—and are ideal for all vehicles, including hot rods, custom trucks, and cars!
( 12 )
$199.95
AMP Research PowerStep Pass-Through Harnesses
Designed for use with other PowerStep plug-and-play applications, these AMP Research pass-through harnesses will allow you to plug in your electric-powered PowerStep and still have access to your OBD-II port. Key features and benefits: * Easy plug-and-play connection—saves on installation time * Pass-through harness allows you to add a second OBD-II port beneath your steering column to run multiple accessories at once * Eliminates need to access door panels to locate and tap into factory wires * Also allows you to run diagnostics without having to unplug your PowerStep running boards
( 3 )
$119.99
Pacer Performance LED Modules
These Pacer Performance LED logic modules filter out turn signal input on all vehicles that use combined brake and turn signal lamps. These modules are required when using a single light as a third LED brake light. Works on most domestic models.
( 11 )
$15.99
Standard Motor Wiring Connectors
High-quality, direct-replacement Standard Motor wiring connectors help eliminate the need for a harness by letting you swap only the damaged connector for a cost-effective repair solution. The terminals feature high-grade materials like copper alloy, brass, and phosphor bronze. Together they provide the connectors with prolonged life and superior performance in harsh environments for each specific application. Standard Motor electrical connectors are 100 percent tested for the proper mechanical and electrical fit, form, and function for your vehicle.
( 142 )
$2.99
—
$143.99
SCT X4 OBD II Cables
SCT X4 OBD II cables will keep you connected to your vehicle. The cable that came with your X4 is missing, or maybe it's damaged. No problem--SCT has HDMI/OBD II replacements that will once again allow you to easily and quickly install your X4 to the port on your vehicle. Power up your device with genuine SCT Performance X4 OBD II cables.
Not Yet Reviewed
$17.99
Bosch Relays
Plug in Bosch relays for your vehicle's power-switching needs. These quality-built relays exceed OEM specifications to provide reliable service for a wide variety of applications. You can trust Bosch for all of your automotive electrical needs. Features include: * Built to withstand extreme conditions * High-power switching * Function over a wide temperature range * Excellent vibration and impact resistance * Long service life and good climatic resistance
( 40 )
$4.99
—
$7.99
Standard Motor Relays
Don't take chances with old or questionable relays that can leave you stranded. Standard Motor Products relays are designed to exceed OEM specifications for accurate, maintenance-free operation. These replacement units are available in dozens of configurations for easy installation on countless applications. Trust your vehicle's needs to Standard Motor Performance.
( 65 )
$6.50
—
$177.99
Dorman Wiring Connectors
Dorman wiring connectors are designed to facilitate the flow of electrical current over a broad range of applications. The small components are available in a variety of styles to fit your specific application or universal fit needs. Choose Dorman wiring connectors for a reliable connection every time.
( 58 )
$9.99
—
$45.99
ACDelco Wiring Connectors
The average vehicle today has hundreds of wiring connectors. ACDelco connectors are available for everything needed, from antennas to trailer wiring, as well as an array of multi-purpose connectors to maintain the optimal operation of your vehicle. Choose GM-recommended replacement wiring connectors to ensure the same performance, durability, and service life you've come to expect from General Motors products.
( 38 )
$4.99
—
$6.99
Motorcraft Dome Light Switches
Motorcraft dome light switches are recommended by Ford for your Ford, Lincoln, or Mercury vehicle. These interior lamp switch assemblies are engineered, manufactured, and tested to OE specifications to ensure functionality and long life. You can be certain your vehicle's courtesy light will turn on and off properly when opening and closing the door by replacing worn or faulty assemblies with genuine Motorcraft dome light switches.
Not Yet Reviewed
$15.99
Standard Motor Fuel Pump Cut-Off Switches
Standard Motor Products offers these fuel pump cut-off switches for a variety of applications. These switches allow you to easily shut off your fuel pump with the push of a button.
( 10 )
$23.99
Diode Dynamics LED Flasher Relays
Diode Dynamics LED flasher relays are ideal solutions if you're converting to newer LED lights. When your factory turn signal bulbs go out, your vehicle's flasher senses that power loss, and it will blink the turn signals quickly to alert you. Since LED bulbs use less power, you get the same fast blinking (a. k. a. "hyperblinking"). So even though the LEDs are functioning just fine, your car thinks the bulbs went out! Regulate those no-flashing or fast-flashing issues with the Diode Dynamics LED flasher relays designed to fit your application.
( 3 )
$19.95
—
$24.95
Standard Motor T-Series Relays
Standard T-Series is a competitively priced line containing some of the most popular part numbers to help you meet your needs. Standard Motor T-Series relays offer high-quality materials to ensure durability, a direct-fit replacement for ease of installation, and testing for performance and reliability. Choose the value and quality of Standard's T-Series to service your vehicle.
( 3 )
$7.99
On Sale
Morimoto X3B LED Third Brake Flash Modules
Morimoto X3B LED third brake flash modules can be added to your X3B brake light setup to automatically pulse the brake light optics 3x before staying on when you step on the brake pedal. Though the standard optics and powerful 3W LEDs in the X3B brake lights are already highly visible day and night, the addition of this module makes sure that followers will notice when you step on the brakes. This feature has become standard on many of the most modern trucks and cars. The X3B Rapid Flash module is 100 percent plug-and-play with the Morimoto X3B brake lights and can be connected in seconds. It is not compatible with other aftermarket products or OEM units.
Not Yet Reviewed
$49.00
$44.10
JMS Chip MAF Harnesses
Need to extend or adapt your MAF wire harness in your vehicle? Simply use JMS Chip MAF harnesses! They're a great plug-and-play option, so MAF relocation anywhere is not a problem. These harnesses use OE-quality plugs and are direct plug-and-play extension harnesses designed to provide a quick and clean installation--no cutting or splicing wires is required.
( 2 )
$59.75
Standard Motor Door Jamb Switches
Standard Motor Products door jamb switches are designed to exceed OEM specifications for accurate, maintenance-free operation. Trust your vehicle's needs to Standard Motor Performance.
( 54 )
$8.99
—
$11.99
Fleece Performance Wiring Pigtails
Fleece Performance offers wiring pigtails and replacement connectors for a wide range of vehicles—including many Dodge, Chevrolet, GMC, Ford, and Ram models from the 1990s and up. These replacement parts are ideal for sensors, starter solenoids, cooling fans, and other components under the hood. Fully automated in-house wire cutting and terminal crimping ensure you get the highest quality connectors and pigtails to get your car or truck back on the road quickly. Order the model that corresponds to your electrical application.
( 4 )
$14.99
—
$37.99
Dorman Transmission Range Sensors
Dorman transmission range sensors are designed from high-quality materials for sustained reliability. They'll ensure that the correct gear selection input is provided to the electronic control unit. These direct replacements offer a proper fit, and they feature connectors with weatherpack seals for effective corrosion prevention—plus durable wire looms that protect wiring from oil and heat damage. Restore your ability to start the vehicle and assure smooth shifting with Dorman transmission range sensors. They're available for a wide variety of specific make/model vehicles.
( 4 )
$32.99
—
$33.99
Hella Relays
Hella relays are ideal for a wide range of automotive uses, such as auxiliary lighting, turn signals, power windows, rear window defogger, and more. They're available in 12 V and 24 V units, with amp ratings from 20 to 50, and numerous terminal options. Hella is one of the most respected names in lighting—and their top-quality accessories and electrical components are an economical choice for universal applications.
( 102 )
$6.99
—
$8.99
On Sale
Holley Wiring Harness Connectors
Holley wiring harness connectors provide one-stop shopping for your wiring needs. Along with their extensive line of wiring components, Holley offers a tremendous assortment of genuine OEM connectors to hook up your wiring project properly, securely, and completely. They're available individually and in packs of 10—with most including pins, seals, and TPA. Finish wiring your Holley-powered machine with their quality wiring harness connectors.
( 10 )
$13.44
—
$26.95
Standard Motor Headlight and Dash Light Dimmer Switches
Standard Motor Products replacement headlight and dash light dimmer switches are designed to meet or exceed OEM specifications for accurate, maintenance-free operation. Don't take chances with old or questionable headlight and dash light dimmer switches that can leave you in the dark. Trust your vehicle's needs to Standard Motor for top-notch performance.
( 54 )
$44.99
Dorman Ignition Switches
Essential replacement items, Dorman ignition switches enable engines to turn over upon startup, restoring drivability. They also unlock the power accessories. These switches are engineered from high-quality materials for long lasting reliability. Features include: * These parts undergo rigorous quality inspection to ensure high quality * Where applicable, includes bezel for a complete repair * Easy to install * Direct replacement for a proper fit
( 10 )
$16.99
—
$59.99
