2003 GMC Sierra 2500 HD Fuel Injectors

Essential 2003 GMC Sierra 2500 HD Fuel Injectors

GM Genuine Parts – Fuel Injection Fuel Rail O-Ring Kit with 3 O-Rings (Part No.17113552)

Fuel Injection Fuel Rail O-Ring Kit with 3 O-Rings

from

$36.99
GM Genuine Parts Fuel Injection Fuel Rail O-Ring Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • 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
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Dorman – Nylon Nut – 1/4 In. (No.14) (Part No.961-351D)

Nylon Nut - 1/4 In. (No.14)

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$4.49
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
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Dorman – Fuel Cooler (Part No.E3025702810DOR)

Fuel Cooler

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$406.36
Fuel Cooler

aFe POWER – Sprint Booster (Part No.77-14003)

Sprint Booster

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$339.99
Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.

Product Features:
  • Reduces Throttle Response Time
  • Improves Acceleration
  • Easy To Install
  • Does Not Affect The Vehicles Electronic System
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Carquest Premium – Reman Multi Port Fuel Injector – 8 Pack (Part No.A211-1803-8PK)

Reman Multi Port Fuel Injector - 8 Pack

from

$415.99
The Carquest line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the USA. Injectors are thoroughly tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function.

Product Features:
  • Includes eight premium fuel injectors
  • Each unit is 100% tested to OE specifications
  • Includes new o-rings and seals made of premium OE quality materials
  • Includes application specific technical bulletin, where applicable
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Felpro – Fuel Injector O-Ring Kit (Part No.ES 73217)

Fuel Injector O-Ring Kit

from

$25.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Carquest Premium – Fuel Injector Sleeve (Part No.AC20462)

Fuel Injector Sleeve

from

$38.49
Product Features:
  • Original equipment fit, form and function
  • Includes premium OE quality o-rings
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Dorman – Injector Cup and O-rings (Part No.904-120)

Injector Cup and O-rings

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$39.99
This fuel injector sleeve is a direct replacement for an original equipment part. Made of quality materials, this part has undergone try-on testing to ensure a quality fit and a long service life.

Product Features:
  • Ideal replacement – this fuel injector sleeve is a direct replacement for the original equipment part on specified engines.
  • Durable construction – this part is made from quality materials to resist damage from fuel and extreme temperatures.
  • Cost-effective solution – offers original equipment quality at competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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Dorman – Fuel Inj. Return Lin (Part No.C1017829278DOR)

Fuel Inj. Return Lin

from

$29.22
Fuel Inj. Return Lin

ACDelco – Fuel Injection Pressure Regulator Kit with Clip and Snap Ring (Part No.217-3073)

Fuel Injection Pressure Regulator Kit with Clip and Snap Ring

from

$112.99
ACDelco GM Original Equipment Fuel Injection Pressure Regulators are mechanical valves that control fuel pressure in the fuel injector rail, and are GM-recommended replacements for your vehicle’s original components. Their spring-loaded valves return excess fuel back to the fuel tank. These original equipment fuel injection pressure regulators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Helps provide constant fuel pressure to the injectors
  • Assists in cold engine starts
  • Helps maintain stable engine idle
  • 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
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ACDelco – GM Original Equipment Fuel Injector Seal Kit (Part No.C1060205441ACD)

GM Original Equipment Fuel Injector Seal Kit

from

$37.69
The ACDelco GM Original Equipment Fuel Injector Seal Kit is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:
  • 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
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Carquest Premium – Fuel Injector Seal Kit (Part No.AC20552)

Fuel Injector Seal Kit

from

$35.49
Complete injector seal kit includes all necessary components to properly reseal four injectors on one bank of the Duramax LB7 engine.

Product Features:
  • Premium OE quality materials
  • Includes 4 injector body o-rings
  • Includes 4 injector fuel fitting o-rings
  • Includes 4 copper combustion seals
  • Includes 4 fuel return rail banjo bolt seals
  • Includes 1 return fitting banjo bolt seal
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GM Genuine Parts – Fuel Injector Retainer Kit with Clip (Part No.12570620)

Fuel Injector Retainer Kit with Clip

from

$13.79
GM Genuine Parts Fuel Injector and Insulator Retainer Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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
  • 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
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Cardone – Remanufactured Fuel Injector Control Module (Part No.77-0664)

Remanufactured Fuel Injector Control Module

from

$714.99
CARDONE Remanufactured Fuel Injector Control Modules are engineered for quick installation and no comebacks. Each unit is engineered to meet or exceed O.E.M performance. All modules are 100% computerized tested and resolder of critical components, as well as 100% replacement of common ware components, ensuring superior electrical connections.

Product Features:
  • All modules are 100% tested with automated computerized test equipment to ensure functionality and reliable.
  • 100% resolder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • Guaranteed fit and function.
  • Meets or exceeds O.E.M performance.
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Cardone – Remanufactured Fuel Injector Control Module (Part No.77-2667)

Remanufactured Fuel Injector Control Module

from

$404.99
CARDONE Remanufactured Fuel Injector Control Modules are engineered for quick installation and no comebacks. Each unit is engineered to meet or exceed O.E.M performance. All modules are 100% computerized tested and resolder of critical components, as well as 100% replacement of common ware components, ensuring superior electrical connections.

Product Features:
  • All modules are 100% tested with automated computerized test equipment to ensure functionality and reliable.
  • 100% resolder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
  • On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
  • Guaranteed fit and function.
  • Meets or exceeds O.E.M performance.
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Bosch – Pressure regulator (Part No.0281006019)

Pressure regulator

from

$199.99
Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.

Product Features:
  • Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.
  • End of line testing using the exact OE test specifications.
  • Guaranteed to provide OE performance and meet all emission specifications.
  • Continuous improvement, remanufactured with the latest upgrades to components and specifications.
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Bosch – Diesel Fuel Injector Pump Pressure Relief Valve (Part No.1110010036)

Diesel Fuel Injector Pump Pressure Relief Valve

from

$135.99
Bosch is the leading OE supplier of diesel fuel systems for diesel passenger cars, SUVs, van and pickup trucks.

Product Features:
  • Manufactured with the latest OE updates, so they can often be superior to the parts they replace
  • Manufactured using all OE tools and processes
  • Guaranteed to provide OE performance
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Carquest Premium – Remanufactured Diesel Fuel Injector (Part No.AD25033)

Remanufactured Diesel Fuel Injector

from

$428.99
CARQUEST premium remanufactured injectors are completely torn down, ultrasonically cleaned, inspected and remanufactured using premium components. Each injector is 100% tested on a sophisticated flow bench under multiple operating parameters to meet or exceed OE specifications.

Product Features:
  • Each unit is 100% tested to OE specifications
  • Includes 100% replacement of nozzle to ensure accurate and precise injection under all operating parameters
  • Includes all new premium quality O-rings and seals
  • Includes copper combustion gasket
  • Includes application specific technical bulletin which highlights critical aspects of the job and offers technical tips for proper installation
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Dorman – Remanufactured Diesel Fuel Injector (Part No.502-511)

Remanufactured Diesel Fuel Injector

from

$303.99
This common rail diesel fuel injector has been thoroughly remanufactured using an exclusive process to ensure optimum quality and reliability. Critical components are replaced and clearances are verified after cleaning, reassembly and testing.

Product Features:
  • Ideal replacement – this remanufactured common rail fuel injector restores lost performance from a fouled original equipment injector
  • Thoroughly remanufactured – this fuel injector has been completely disassembled, cleaned, inspected, reassembled with new internal components and tested to be leak-free
  • Cost-effective solution – offers original equipment quality at competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and long service life
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ACDelco – GM Original Equipment Fuel Injection Throttle Body Gasket (Part No.C7001291899ACD)

GM Original Equipment Fuel Injection Throttle Body Gasket

from

$55.74
The ACDelco GM Original Equipment Fuel Injection Throttle Body Gasket is a GM-recommended replacement component that provides the same performance, durability, and service life as your factory original equipment.

Product Features:
  • 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
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Victor Reinz – Fuel Injection Throttle Body Mounting Gasket (Part No.71-15924-00)

Fuel Injection Throttle Body Mounting Gasket

from

$18.49
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Carquest Premium – Fuel Return Line Gasket Kit (Part No.AC20302)

Fuel Return Line Gasket Kit

from

$20.89
Complete kit includes banjo bolt seals to reseal injector fuel return rail manifold on Duramax LB7 engines. One required per side.

Product Features:
  • Original equipment fit, form and function
  • Includes 4 fuel return rail banjo bolt seals
  • Includes 1 return fitting banjo bolt seal
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ACDelco – 6-Way Female Black Multi-Purpose Pigtail (Part No.PT787)

6-Way Female Black Multi-Purpose Pigtail

from

$56.99
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
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ACDelco – Black Multi-Purpose Pigtail (Part No.PT2183)

Black Multi-Purpose Pigtail

from

$94.99
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
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Carquest – Fuel Injector Connector (Part No.PT5891)

Fuel Injector Connector

from

$43.99
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 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
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Delphi – Air Mass Sensor (Part No.B3150394753DEL)

Air Mass Sensor

from

$138.40
All Delphi Air Mass Sensors feature a patented dimpled flow management feature that provides better control of air separation for more consistent air flow across the sensing elements and enabling outstanding performance in application-specific ducting.

Product Features:
  • Platinum-coated ceramic heated sensing element design is smaller and less fragile than competitive products
  • Heated sensing elements are very robust to damage from dust impingement
  • Heated sensing elements offer proven durability with more that 130 million in the field over the past 16 years
  • Patented temperature compensation algorithm offers robustness to changes in ambient air temperature
  • Patented dimple design eliminates the need for a flow straightener in most applications
  • Probe design offers low restriction air measurement driving increased horsepower
  • Interchangeability is enabled by common mounting footprint
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Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ6223)

Mass Air Flow Sensor (MAF) - 100% NEW

from

$91.99
Advance Auto Parts is proud to carry all new mass air flow sensors that use high-quality components with the highest quality standards.

Product Features:
  • CARQUEST MAF use all new high-quality components at the highest quality standards.
  • Manufactured with new and advanced technology to perform, fit and function at OE specifications.
  • All new product that is tested with OEM equipment to OEM standards
  • Outperforms competition when tested in extreme environmental conditions
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GM Genuine Parts – Mass Air Flow Sensor (Part No.23259883)

Mass Air Flow Sensor

from

$289.99
GM Genuine Parts Mass Air Flow (MAF) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors are key parts of the engine management system, and are GM-recommended replacements for your vehicle’s original components. The MAF sensor measures the amount of air entering the engine so that the engine control module can determine the amount of fuel to inject. This helps ensure the most efficient air/fuel mixture for the best fuel economy and power. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Measures the amount of air entering the engine so the ECM can determine the amount of fuel to inject
  • 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
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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2003 GMC Sierra 2500 HD Fuel Injectors

Maybe you’re in the middle of a full rebuild of that 2003 GMC Sierra 2500 HD. Maybe you just need a couple of Fuel Injectors. Either way, Advance Auto Parts has 65 different Fuel Injectors in our inventory ranging from $2.99 to $1,058.99. That means you can find the exact parts or products you need to keep that 2003 GMC Sierra 2500 HD running smoothly.

Fuel Injectors are only as good as their brand. We stock 15 different brands to make sure you have plenty of trusted parts to choose from for your 2003 GMC Sierra 2500 HD. FELPRO, Carquest Premium, and Delphi are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Fuel Injectors for your 2003 GMC Sierra 2500 HD, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,848 reviews in this category, some of the top rated parts include Fuel Injector with 4.7 stars and Remanufactured Fuel Injector with 3.7 stars.

So if you’re in the market for aftermarket Fuel Injectors to keep your 2003 GMC Sierra 2500 HD rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Fuel Injectors Brands To Make Your 2003 GMC Sierra 2500 HD Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 GMC Sierra 2500 HD demands trusted brand parts and products to keep it running. Many trusted brands of Fuel Injectors make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 2500 HD the best it can be. Be sure to browse some of our top Fuel Injectors brands and parts.

Popular Cardone Fuel Injectors

We carry Cardone parts in our stock across Fuel Injector Control Modules categories, plus more. For a 2003 GMC Sierra 2500 HD, our most popular Cardone Fuel Injectors include:
Remanufactured Fuel Injector Control Module
from $674.99
(1)
Remanufactured Fuel Injector Control Module
Fuel Injector Control Modules

Top 2003 GMC Sierra 2500 HD Fuel Injectors from Felpro

Felpro products are another trusted brand when it comes to Fuel Injectors for your 2003 GMC Sierra 2500 HD. Popular Felpro parts include:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits

FAQs for 2003 GMC Sierra 2500 HD Fuel Injectors

What are the most purchased Fuel Injectors for the 2003 GMC Sierra 2500 HD?

Out of 65 Fuel Injectors for the 2003 GMC Sierra 2500 HD, the most popular in our inventory are:
Mass Air Flow Sensor (MAF) - 100% NEW
from $89.99
(2)
Mass Air Flow Sensor (MAF) – 100% NEW
Air Flow Meters and Mass Air
Mass Air Flow Sensor
from $129.99
(21)
Mass Air Flow Sensor
Air Flow Meters and Mass Air
Fuel Injection Pressure Regulator
from $82.99
(21)
Fuel Injection Pressure Regulator
Pressure Regulators

What are the top-rated 2003 GMC Sierra 2500 HD Fuel Injectors?

Top-rated Fuel Injectors for your 2003 GMC Sierra 2500 HD based on customer reviews/ratings are:
Fuel Injector
from $113.99
(6)
Fuel Injector
“Perfect fit. Works as it should. Order online and save money.”
Remanufactured Fuel Injector
from $58.99
(3)
Remanufactured Fuel Injector
“Injector works as anticipated!”
Fuel Injection Nozzle O-Ring Kit
from $6.99
(2)
Fuel Injection Nozzle O-Ring Kit
“What i needed and installed easily”