2003 GMC Sierra 2500 Electrical Parts

Essential 2003 GMC Sierra 2500 Electrical Parts

Littelfuse – Fuse – Maxi Blade 32V 60A: 60 Amp, Blue, Maxi, 1 Pack (Part No.MAX60)

Fuse - Maxi Blade 32V 60A: 60 Amp, Blue, Maxi, 1 Pack

from

$4.29
MAXI uses “Diffusion Pill Technology” to provide predictable time delay characteristic and low heat dissipation. MAXI Fuses are primarily used for under hood applications and are products with a high temperature polymer and silver plated blades. Replace commonly used fusible wire or fusible link to protect a high current segment or system of the wiring harness. Ideal for motor powered applications which have large inrush currents. Littelfuse, founded in 1927 and headquartered in Chicago, is an industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 15 countries, and with 17,000 global associates, we partner with customers to design and deliver innovative, reliable solutions.

Product Features:
  • MAXI uses “Diffusion Pill Technology” to provide predictable time delay characteristic and low heat dissipation
  • MAXI Fuses are primarily used for under hood applications and are products with a high temperature polymer and silver plated blades.
  • Replace commonly used fusible wire or fusible link to protect a high current segment or system of the wiring harness.
  • Ideal for motor powered applications which have large inrush currents.
See More

Carquest Premium – ABS Wheel Speed Sensor Connector (Part No.PTA1007)

ABS Wheel Speed Sensor Connector

from

$10.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest – Multi Function Switch (Part No.S14059)

Multi Function Switch

from

$249.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
See More

Delphi – Fuel Pump Wiring Harness (Part No.FA10003)

Fuel Pump Wiring Harness

from

$17.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part, comprehensive portfolio for a wide range of vehicles and model years.

Product Features:
  • Each wire harness is designed to meet or exceed the performance of the original unit
  • Engineered with the same stringent standards applied to the parts we make for the top global OEMs
  • Delphi wire harnesses are designed and reliably work for the life of your fuel system
See More

ATP – Repair Harness (Part No.CE-6)

Repair Harness

from

$147.99
Repair Harness

GM Genuine Parts – Front Passenger Side Power Window Regulator and Motor Assembly (Part No.20945139)

Front Passenger Side Power Window Regulator and Motor Assembly

from

$217.99
GM Genuine Parts Power Window Motor and Regulator Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Window regulators roll your vehicle’s window up and down, and the motor is what powers the regulator

Product Features:
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
  • Rolls
  • Offers power and controls function of power windows
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
See More

Carquest Premium – Cargo Area Light Connector (Part No.PTA1383)

Cargo Area Light Connector

from

$40.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.

Product Features:
  • CarQuest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
See More

ACDelco – Black Multi-Purpose Pigtail (Part No.PT1825)

Black Multi-Purpose Pigtail

from

$61.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

Carquest Premium – Accessory Power Receptacle Connector (Part No.PTA1817)

Accessory Power Receptacle Connector

from

$24.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – Air Bag Connector (Part No.PTA1837)

Air Bag Connector

from

$36.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – ABS Wheel Speed Sensor Connector (Part No.PTA1078)

ABS Wheel Speed Sensor Connector

from

$27.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – Body Wiring Harness Connector (Part No.PTA1563)

Body Wiring Harness Connector

from

$44.99
CARQUEST premium engine management products provide the right automatic transmission speed sensor for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions. Designed to meet OE quali

Product Features:
  • Lifecycle tested to meet or exceed OE specifications
  • Direct OE replacement
  • High strength thermoplastic is resistant to shock, temperature and chemicals. Also protects internal components from moisture and contaminants.
  • Global coverage for import and/or domestic applications.
See More

Carquest Premium – Inline Connector (Part No.PTA1274)

Inline Connector

from

$31.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – Instrument Panel Wiring Junction Block Connector (Part No.PTA2974)

Instrument Panel Wiring Junction Block Connector

from

$127.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest – A/C Compressor Connector (Part No.PT770)

A/C Compressor Connector

from

$16.05
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our knock sensors are designed to respond to knock frequencies up to 1000 Hz accommodating shifts in engine knock frequency making it a more flexible sensor responding to correct engine knock over a broad range of vehicle conditions
  • Manufacturing processes include an automated data acquisition system to continuously monitor the sensor output to ensure that it responds with appropriate voltage output at the specified frequency range
  • All units are 100% tested using an accelerometer vibration test to ensure trouble-free operation
  • Featuring the broadest sensor coverage in the market, we meet the service professionals needs with the highest quality product every time he opens the box
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
See More

Carquest Premium – Accessory Wiring Junction Block Connector (Part No.PTA2292)

Accessory Wiring Junction Block Connector

from

$25.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More

Carquest – Engine Camshaft Position Sensor Connector (Part No.PT196)

Engine Camshaft Position Sensor Connector

from

$35.99
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
  • Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
  • Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
  • High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
  • Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
See More

Carquest Premium – 4WD Indicator Light Switch Connector (Part No.PTA1019)

4WD Indicator Light Switch Connector

from

$31.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Carquest Premium – 4WD Indicator Light Switch Connector (Part No.PTA1174)

4WD Indicator Light Switch Connector

from

$35.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Dorman – Splash Shield Retainer – GM/Ford/Chrysler (sold by each) (Part No.700-397)

Splash Shield Retainer - GM/Ford/Chrysler (sold by each)

from

$1.29
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
See More

Dorman – Front Crash Sensor (Part No.590-214)

Front Crash Sensor

from

$225.99
This air bag impact sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this air bag impact sensor is designed to match the fit and function of the original sensor on specified vehicles
  • Ideal solution – this sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction
  • Durable construction – this sensor is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Driveworks – Oil Pressure Gauge Switch (Part No.59018)

Oil Pressure Gauge Switch

from

$55.99
Driveworks® offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
See More

Carquest Premium – ABS Wheel Speed Sensor Connector (Part No.PTA2415)

ABS Wheel Speed Sensor Connector

from

$37.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

ACDelco – Multi-Purpose Pigtail (Part No.PT2038)

Multi-Purpose Pigtail

from

$87.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

ACDelco – 7-Way Female Gray Multi-Purpose Pigtail (Part No.PT1391)

7-Way Female Gray Multi-Purpose Pigtail

from

$97.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

ACDelco – 10-Way Female Black Multi-Purpose Pigtail (Part No.PT1105)

10-Way Female Black Multi-Purpose Pigtail

from

$97.99
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Protective outer coverings help provide long-lasting durability
  • Color-coded wires allow for easy installation
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
See More

Driveworks – Electrical Relay (Part No.83263)

Electrical Relay

from

$17.99
Driveworks® offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
See More

Carquest Premium – Fog Light Switch Connector (Part No.PTA2041)

Fog Light Switch Connector

from

$34.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
See More

Popular 2003 GMC Sierra 2500 Electrical Parts Categories

2003 GMC Sierra 2500 Electrical Parts

You count on your 2003 GMC Sierra 2500 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Electrical Parts. With 109 Electrical Parts ranging in price from $1.29 to $673.99, you’re sure to find everything you need for your 2003 GMC Sierra 2500.

Brands matter. If you want to shop a specific Electrical Parts brand, we stock 13 different brands like Dorman, Carquest, and Carquest Premium. 2003 GMC Sierra 2500 Electrical Parts start as low as $1.29!

One of the best ways to find top quality OEM or aftermarket Electrical Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 444 extensive product reviews on 2003 GMC Sierra 2500 Electrical Parts. Some of the top-rated Electrical Parts products we carry are Engine Oil Pressure Switch with 4.3 stars and Air Charge Temperature Sensor Connector with 3.9 stars.

Did we mention you can order your Electrical Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Electrical Parts inventory for your 2003 GMC Sierra 2500 below to get started!

Top-Rated Electrical Parts Brands For Your 2003 GMC Sierra 2500

Trusted Electrical Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 GMC Sierra 2500 running right for years to come. In our inventory you’ll find brands like Dorman, Carquest, Carquest Premium, and even more.

Popular Carquest Premium Electrical Parts

You’ll find popular Carquest Premium brand products across Engine Wiring Harnesses. All are waiting to get your 2003 GMC Sierra 2500 back on the road. Some of the top-rated Carquest Premium products in these categories are:
Fuel Pump Wiring Harness
from $14.99
(1)
Fuel Pump Wiring Harness
Fuel Pump Wiring Harness

FAQs for 2003 GMC Sierra 2500 Electrical Parts

What are the most purchased Electrical Parts for the 2003 GMC Sierra 2500?

Out of 109 Electrical Parts for the 2003 GMC Sierra 2500, the most popular in our inventory are:
Engine Oil Pressure Sensor
from $83.99
This product is not rated
Engine Oil Pressure Sensor
Oil Pressure Switch and Senders
Engine Oil Pressure Sensor
from $77.99
This product is not rated
Engine Oil Pressure Sensor
Oil Pressure Switch and Senders
Cornering Light Socket
from $23.29
(26)
Cornering Light Socket
Crankshaft Position Sensor Connectors

What are the top-rated 2003 GMC Sierra 2500 Electrical Parts?

Top-rated Electrical Parts for your 2003 GMC Sierra 2500 based on customer reviews/ratings are:
Engine Oil Pressure Switch
from $78.99
(44)
Engine Oil Pressure Switch
“GREAT”
Air Charge Temperature Sensor Connector
from $11.49
(33)
Air Charge Temperature Sensor Connector
“It fit works!!!!”
Power Window Lift Motor
from $47.99
(6)
Power Window Lift Motor
“Worked great and website was very accurate.”