2003 GMC Sierra 2500 HD Engine Parts

Essential 2003 GMC Sierra 2500 HD Engine Parts

Felpro – Engine Valve Stem Oil Seal Set (Part No.SS 70945)

Engine Valve Stem Oil Seal Set

from

$32.49
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:
  • RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
  • QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
  • ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
  • INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
  • COVERAGE — Available for domestic and foreign nameplate vehicles
See More

Victor Reinz – Fuel Injection Plenum Gasket (Part No.71-14602-00)

Fuel Injection Plenum Gasket

from

$9.49
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.
See More

ACDelco – GM Original Equipment Engine Coolant Temperature Sensor (Part No.C6020409594ACD)

GM Original Equipment Engine Coolant Temperature Sensor

from

$62.10
The ACDelco GM Original Equipment Engine Coolant Temperature Sensor monitors the engine temperature, and is a GM-recommended replacement for your vehicle’s original component. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. This original equipment engine coolant temperature sensor has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:
  • Undergo the same stringent testing process as the original part
  • 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

Felpro – TURBOCHARGER MOUNTING GASKET SET (Part No.61720)

TURBOCHARGER MOUNTING GASKET SET

from

$3.79
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
  • Validated for fit, form, and function
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
See More

Rotomaster – Turbocharger (Part No.A1370104N)

Turbocharger

from

$1820.00
Rotomaster 100% New Turbochargers are available for a vast array of automotive applications to meet the growing demand for maximum vehicle performance with optimal fuel efficiency. Every Rotomaster turbocharger has been designed and tested to guarantee O.E. fit and performance. Rotomaster is committed to getting your vehicle back on the road and back to peak performance with these brand-new, direct-replacement turbochargers.

Product Features:
  • 100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
  • Unit comes with the required gaskets and mounting hardware for easy installation.
  • Meets or exceeds O.E. performance.
  • Unit comes with a pre-lube syringe to ensure product protection during installation.
  • Manufactured with 100% new components and tested to ensure trouble-free operation
  • 100% dynamic balancing of compressor wheels, turbine shaft/wheel assemblies and complete rotating assembly guarantees proper operation and extends unit life.
  • All units come with the required gaskets and mounting hardware for easy installation.
  • Meets or exceeds O.E. performance.
  • Comes with a pre-lube syringe to ensure product protection during installation.
See More

Dorman – Diesel Engine Oil Cooler (Part No.918-400)

Diesel Engine Oil Cooler

from

$327.99
This engine oil cooler is designed to match the fit and function of an original equipment cooler on specified vehicles. It is engineered to help maintain proper engine oil temperature when an original cooler has failed from heat, corrosion or damage.

Product Features:
  • Direct replacement – this engine oil cooler is designed to match the fit and function of an original equipment cooler on specified vehicles
  • Ideal solution – engineered to help maintain proper engine oil temperature when an original cooler has failed from heat, corrosion or damage
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Remanufactured Body Control Module (Part No.502-007)

Remanufactured Body Control Module

from

$297.99
This remanufactured body control module (BCM) is thoroughly tested and refurbished as required to restore various accessory functions and prevent damage to related components.

Product Features:
  • Thoroughly remanufactured – this body control module has been rebuilt in a dedicated electronics manufacturing facility in North America
  • Durable construction – this control module has been thoroughly refurbished for reliable performance
  • Cost-effective solution – offers original equipment quality at a better price than a new part
  • Quality tested – this module has been individually tested to confirm function and performance
See More

KAI – Charge Air Cooler/Intercooler, Tube/Fin Type, 6.6L V8 Turbo Diesel (Part No.CAC010015)

Charge Air Cooler/Intercooler, Tube/Fin Type, 6.6L V8 Turbo Diesel

from

$389.99
New Platinum Pro Charge Air Cooler/Intercooler, Tube And Fin Type, 6.6 Liter V8 Turbo Diesel, All Aluminum Construction

Product Features:
  • Tube And Fin Type, 6.6 Liter V8 Turbo Diesel, All Aluminum Construction, Made Of Aluminum
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Felpro – Oil Cooler Mounting Set (Part No.ES 73231)

Oil Cooler Mounting Set

from

$41.99
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 and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
See More

Dorman – Oil Cooler Line Connector (Part No.800-712)

Oil Cooler Line Connector

from

$12.99
This engine oil cooler line connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine oil cooler line connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and 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

Victor Reinz – Engine Oil Cooler Gasket (Part No.71-13510-00)

Engine Oil Cooler Gasket

from

$14.99
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.
See More

Felpro – OIL PAN GASKET SET (Part No.OS 30748)

OIL PAN GASKET SET

from

$19.99
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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SUPERIOR SEAL — Manufactured with rubber compounds to ensure a consistent and long-life seal across the entire oil pan
  • PREVENTS OVERTIGHTENING — Torque limiters help eliminate overtightening and gasket splitting and extruding (where applicable)
  • OE-STYLE REPLACEMENT GASKET — Engineered for OE-style molded rubber gasket replacement
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
  • ENGINEERING EXPERTISE — Parts are designed, tested, validated and approved by Fel-Pro engineers through rigorous research and development
See More

Dorman – Crankshaft Seal Cove (Part No.A2160751058DOR)

Crankshaft Seal Cove

from

$67.53
Crankshaft Seal Cove

Melling – Stock Replacement Type Oil Pump Intermediate Shaft (Part No.IS-77)

Stock Replacement Type Oil Pump Intermediate Shaft

from

$23.49
A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:
  • Manufactured from high quality materials for consistent durable wear
  • Precision engineered for optimum fit and function
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
See More

MAHLE Original – Cylinder Head Gasket L/H (Part No.54597)

Cylinder Head Gasket L/H

from

$119.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • Cylinder head gaskets are sold individually and may require new head bolts based on application.
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

Dorman – Rear Main Seal Cover Kit (Part No.635-518)

Rear Main Seal Cover Kit

from

$74.99
Ensure the proper sealing of the engine with our Engine Rear Main Seal Cover. The Seal Cover is designed from high-quality materials to stop and prevent engine oil leakage.

Product Features:
  • Rear Main Seal Cover Kit
  • Rear Main Seal Cover Kit
  • Ensure the proper sealing of the engine with our Engine Rear Main Seal Cover. The Seal Cover is designed from high-quality materials to stop and prevent engine oil leakage.
  • SPECIAL TOOL REQUIRED FOR INSTALLATION┬á- GM alignment tool J414792B or Dorman 635-000 (or equivalent) is required to properly install cover assembly. Failure to use the correct tool and installation procedures will result in seal leaks.
  • Comes with bolts and gaskets – everything necessary for a complete repair
See More

Cardone New – Turbocharger Cartridge (Part No.2N-1009CHR)

Turbocharger Cartridge

from

$1689.99
When turbochargers fail, the common response is the replacement of the entire unit. However, the damage is often isolated within the turbo cartridge, which contains the core components of the turbo assembly. By replacing just the cartridge, the remaining components can be salvaged and repair times reduced. CARDONE cartridges are assembled with O.E.-grade components to ensure high performance and durability.

Product Features:
  • Eliminates the need to replace the entire turbocharger
  • Allows for reuse of the original compressor and turbine housings
  • Direct O.E. replacement
  • Allows for replacement of turbocharger without the need for balancing
  • Supplied with O.E.-grade components for durability
See More

MAHLE Original – Valve Cover Gasket Set (Part No.VS50549)

Valve Cover Gasket Set

from

$113.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • Valve cover gasket set contains all the gaskets required – may also contain spark plug tube seals and grommets if necessary.
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
See More

PowerBond – Premium OEM Replacement Harmonic Balancer; 195.5mm Diameter (Part No.PB1190N)

Premium OEM Replacement Harmonic Balancer; 195.5mm Diameter

from

$85.99
For use on the most popular passenger car, light commercial and four-wheel drive applications, Dayco harmonic balancers use special rubber compounds to dampen and remove engine harmonics and add to engine performance. Manufactured using a premium ductile iron casting and injection bonded dampening rubber, Dayco harmonic balancers offer engine builders and technicians the highest quality replacement to standard OEM balancers, which are typically made with press inserted dampening rubber. Dayco balancers utilize both inserted and pressure-bonded rubber to provide superior bonding strength between the inner and outer balancer rings, helping minimize spin and dislocation.

Product Features:
  • Designed as premium OEM replacement balancers for serpentine and V-belt drives
  • Manufactured with ductile iron casting and injection bonded dampening rubber
  • Engineered to offer superior bonding strength between the balancer rings
See More

Felpro – Fuel Injector O-Ring Kit (Part No.ES 71190)

Fuel Injector O-Ring Kit

from

$8.99
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
See More

ACDelco – Engine Oil Level Sensor (Part No.D8055)

Engine Oil Level Sensor

from

$39.99
An ACDelco Professional, premium aftermarket Engine Oil Level Sensor is a high quality replacement for many vehicles on the road today. It measures the oil level in your vehicle’s oil pan and will send warnings to the information center or dash panel if oil levels reach a level that is too low, as determined by General Motors engineers. This premium aftermarket replacement engine oil level sensor is manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
See More

Dorman – Help – Oil Level Dip Stick Tube (Part No.917-303)

Oil Level Dip Stick Tube

from

$24.99
This engine oil dipstick tube is designed to match the fit and function of the original tube on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine oil dipstick tube is designed to match the fit and function of the original tube on specified vehicles
  • Restores functionality – reliable replacement for an original part that is missing, bent or broken
  • Durable construction – this part is made from quality materials to ensure reliable performance and 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

Carquest Premium – Automatic Transmission Fluid Temperature Sensor (Part No.SBE2079)

Automatic Transmission Fluid Temperature Sensor

from

$98.99
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

Mahle – Camshaft Adjuster Ga (Part No.A8012431459MAH)

Camshaft Adjuster Ga

from

$11.89
Camshaft Adjuster Ga

Felpro – Engine Coolant Outlet Gasket (Part No.35757)

Engine Coolant Outlet Gasket

from

$7.99
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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
See More

ACDelco – GM Original Equipment Oil Cooler Seal (Part No.A6310320812ACD)

GM Original Equipment Oil Cooler Seal

from

$37.49
The ACDelco GM Original Equipment Engine Oil Cooler Seal 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
See More

Cardone New – Turbocharger Billet Compressor Wheel (Part No.2N-4005BLW)

Turbocharger Billet Compressor Wheel

from

$310.99
The turbocharger compressor wheel plays an important role in delivering high-pressure air to the intake manifold, resulting in more power. Traditional compressor wheels are made from cast aluminum which results in higher mass and lower fatigue life when compared to the lighter weight, stronger, CARDONE Billet compressor wheel. These billet wheels are well suited for high demand applications including high performance racing applications or high duty cycle applications such as buses or delivery vehicles. CARDONE Billet Compressor Wheels are designed to meet or exceed all O.E. performance standards and fit seamlessly into O.E. covers. Built for strength and tested for endurance, CARDONE Billet Compressor Wheels provide peace of mind for severe-duty demands.

Product Features:
  • Product designed and manufactured to accommodate O.E. applications
  • Fits into O.E. cover, no modifications needed
  • Meets or exceeds O.E. performance
  • All products are tested and inspected in an ISO-9001 compliant environment
  • Machined from forged billet for strength
  • Milled for consistent mass and consistent center of gravity
  • Machined with a high degree of precision
  • Stronger than OE cast aluminum wheels resulting in higher fatigue life
See More

Cardone New – Turbocharger Billet Compressor Wheel (Part No.2N-4006BLW)

Turbocharger Billet Compressor Wheel

from

$323.99
The turbocharger compressor wheel plays an important role in delivering high-pressure air to the intake manifold, resulting in more power. Traditional compressor wheels are made from cast aluminum which results in higher mass and lower fatigue life when compared to the lighter weight, stronger, CARDONE Billet compressor wheel. These billet wheels are well suited for high demand applications including high performance racing applications or high duty cycle applications such as buses or delivery vehicles. CARDONE Billet Compressor Wheels are designed to meet or exceed all O.E. performance standards and fit seamlessly into O.E. covers. Built for strength and tested for endurance, CARDONE Billet Compressor Wheels provide peace of mind for severe-duty demands.

Product Features:
  • Product designed and manufactured to accommodate O.E. applications
  • Fits into O.E. cover, no modifications needed
  • Meets or exceeds O.E. performance
  • All products are tested and inspected in an ISO-9001 compliant environment
  • Machined from forged billet for strength
  • Milled for consistent mass and consistent center of gravity
  • Machined with a high degree of precision
  • Stronger than OE cast aluminum wheels resulting in higher fatigue life
See More

Popular 2003 GMC Sierra 2500 HD Engine Parts Categories

2003 GMC Sierra 2500 HD Engine Parts

You count on your 2003 GMC Sierra 2500 HD 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 Engine Parts. With 377 Engine Parts ranging in price from $0.30 to $6,919.99, you’re sure to find everything you need for your 2003 GMC Sierra 2500 HD.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 29 different brands like Felpro, Sealed Power, and Dorman. 2003 GMC Sierra 2500 HD Engine Parts start as low as $0.30!

One of the best ways to find top quality OEM or aftermarket Engine Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 4,760 extensive product reviews on 2003 GMC Sierra 2500 HD Engine Parts. Some of the top-rated Engine Parts products we carry are Multi-Purpose O-Ring with 4.9 stars and Stock Replacement OE Type Oil Pump with 4.5 stars.

Did we mention you can order your Engine 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 Engine Parts inventory for your 2003 GMC Sierra 2500 HD below to get started!

Top-Rated Engine Parts Brands For Your 2003 GMC Sierra 2500 HD

Trusted Engine 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 HD running right for years to come. In our inventory you’ll find brands like Felpro, Sealed Power, Dorman, and even more.

Popular Melling Engine Parts

You’ll find popular Melling brand products across Oil Pumps. All are waiting to get your 2003 GMC Sierra 2500 HD back on the road. Some of the top-rated Melling products in these categories are:
Stock Replacement Oil Pump Screen
from $100.99
(5)
Stock Replacement Oil Pump Screen
Engine Oil Pump Pickup Tube and Screens
Stock Replacement Type Oil Pump Intermediate Shaft
from $23.49
(1)
Stock Replacement Type Oil Pump Intermediate Shaft
Oil Pump Shafts

FAQs for 2003 GMC Sierra 2500 HD Engine Parts

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

Out of 377 Engine Parts for the 2003 GMC Sierra 2500 HD, the most popular in our inventory are:
Engine Valve Lifter
from $12.99
(30)
Engine Valve Lifter
Engine Valve Lifters
Engine Crankshaft Seal Kit
from $41.99
(31)
Engine Crankshaft Seal Kit
Rear Main Seal Sets
Rear Main Seal Cover Kit
from $74.99
(19)
Rear Main Seal Cover Kit
Rear Main Seal Sets

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

Top-rated Engine Parts for your 2003 GMC Sierra 2500 HD based on customer reviews/ratings are:
Multi-Purpose O-Ring
from $5.49
(41)
Multi-Purpose O-Ring
“Fixed the low oil pressure at idle and ticking from the lifters”
Stock Replacement OE Type Oil Pump
from $121.99
(26)
Stock Replacement OE Type Oil Pump
“Great service.good job”
Engine Oil Filler Cap: 10099, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
from $9.99
(22)
Engine Oil Filler Cap: 10099, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack
“Fit my 2006 Chevy Cobalt perfectly and for the cheap price it couldn’t be a better deal. I highly reccommend it. Also the AAP guy who sold it to me ma”