2003 GMC W4500 Forward Engine Parts

Essential 2003 GMC W4500 Forward Engine Parts

MAHLE Original – Oil Cooler Element Gasket (Part No.B31872)

Oil Cooler Element Gasket

from

$12.99
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
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • 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
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MAHLE Original – Camshaft Cover Plate (Part No.B32270)

Camshaft Cover Plate

from

$27.99
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
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • 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
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Dorman – Harmonic Balancer Pulley (Part No.594-530)

Harmonic Balancer Pulley

from

$45.99
This engine harmonic balancer pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this engine harmonic balancer pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration
  • 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
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Dorman – Oil Cooler Line Connector (Part No.800-701)

Oil Cooler Line Connector

from

$11.29
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
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Spectra Premium – Engine Oil Pan (Part No.GMP53A)

Engine Oil Pan

from

$251.99
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium oil pans meet or exceed the performance of the original equipment they replace.

Product Features:
  • Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE expertise
  • Durable powder coating applied to exterior of oil pan for a long lasting rust free unit
  • Washed and then sealed with an anti-corrosive spray on the interior for a rust free unit at installation
  • Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed
  • Engineered to stringent tolerances based on our Canadian engineers’ in-depth knowledge of the OE part it’s designed to replace
  • Road tested to ensure real world performance and to verify that each design meets our high standards for quality
  • Coating salt spray tested for over 200 hours to insure durability
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Driveworks – Crankshaft Seal (Part No.S-100085)

Crankshaft Seal

from

$29.99
Product Features:
  • Brand may vary by location
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Victor Reinz – Engine Camshaft Retainer Plate (Part No.71-17533-00)

Engine Camshaft Retainer Plate

from

$29.99
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.
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Carquest Premium – Engine Oil Filler Cap: 10101, Screw On, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10101)

Engine Oil Filler Cap: 10101, Screw On, Direct Fit, Provides Tight Seal, 1 Pack

from

$11.99
Manufactured from high quality components by an OE Supplier. Proper fit and sealing prevents oil loss. Designed to OEM specifications. High quality finish is designed to compliment the engine compartment appearance.

Product Features:
  • Provides proper seal to ensure leak prevention
  • Stops engine blow by
  • High quality construction
  • Meets all OEM specifications
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Dorman – Engine Oil Filler Tube (Part No.917-412)

Engine Oil Filler Tube

from

$14.99
This engine oil filler 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 filler tube is designed to match the fit and function of the original tube on specified vehicles
  • Restores functionality – reliable replacement for an original tube that has failed due to fatigue and corrosion
  • 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
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Dorman – Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each) (Part No.635-002)

Connecting Rod Nuts, Type 2, 3/8-24 X 9/16 In., Ford (sold by each)

from

$1.29
This engine connecting rod nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine connecting rod nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut 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
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Carquest Premium – Chain (Part No.3SRH-60)

Chain

from

$28.99
Advance Auto Parts is proud to carry this part with the best fitment and performance requirements for this application, from the highest quality timing component vendor.

Product Features:
  • The chain is heat treated steel for durability and prerun for accurate fit
  • Roller chain with 60 rollers and 0 timing marks
  • Meets or exceeds O.E.M. performance
  • Coated in rust preventative
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Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

from

$9.99
This engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine coolant water bypass gasket is designed to match the fit and function of the original gasket on specified vehicles
  • Restores functionality – this gasket is made to fit and fully restore functionality after the original part fails
  • 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
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Dorman – Steel Cup Expansion Plug 2-7/64 In., Height 0.310 (sold by each) (Part No.555-080)

Steel Cup Expansion Plug 2-7/64 In., Height 0.310 (sold by each)

from

$2.49
This engine camshaft plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine camshaft plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug 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
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Dorman – Pik-a-Nut – Steel Cup Expansion Plug 1-5/8 In., Height 0.500 (Part No.362657.1)

Steel Cup Expansion Plug 1-5/8 In., Height 0.500

from

$2.29
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug 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
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Spartan – Engine Cylinder Head; GM 6.0/6.2 10-19 OHV Head (Part No.2CT13)

Engine Cylinder Head; GM 6.0/6.2 10-19 OHV Head

from

$651.99
Remanufactured Cylinder Heads are complete rebuild & include new valve stem seals, soft plugs & verified camshafts. All threads are checked and repaired if necessary. Cylinder Heads are packaged in heavy plastic to protect the unit.

Product Features:
  • All cylinder heads are both vacuum and pressure tested to verify valve seating, & integrity of water passages.
  • All cylinder heads are packaged in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • All threads and machined surfaces are and repaired with technology that exceeds the original metal
  • Non-sealing iron surfaces painted to prevent oxidization
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National – Multi Purpose Seal (Part No.100085)

Multi Purpose Seal

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$25.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -100°F to 450°F; -73°C to 232°C
  • Resistant to hydrocarbon/oxygenate blends and provides superior performance
  • Provides excellent dry running capabilities, low coefficient of friction and excellent resistance to chemicals
  • Delivers quality and reliable performance for every type of repair
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Dorman – Timing Cover Kit (Part No.635-522)

Timing Cover Kit

from

$102.99
This direct replacement timing cover matches the fit and function of the original equipment cover for a reliable repair. This part has undergone extensive testing to ensure adherence to precise design standards.

Product Features:
  • Direct replacement – this engine timing cover matches the fit and function of the original equipment cover
  • Durable construction – this part is specifically designed to withstand extreme underhood temperatures for a long service life
  • Cost-effective solution – offers original equipment quality at a 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 Crankshaft Position Sensor (Part No.A2255323441ACD)

GM Original Equipment Crankshaft Position Sensor

from

$156.75
The ACDelco GM Original Equipment Engine Crankshaft Position Sensor monitors the position and rotational speed of the crankshaft, and is a GM-recommended replacement for your vehicle’s original component. The signal from the crankshaft position sensor is used by the engine control module to determine fuel injection and ignition timing. This original equipment engine crankshaft position 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:
  • Undergos 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
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Melling Select Performnce – High Performance High Volume Cast Aluminum Oil Pump (Part No.10296)

High Performance High Volume Cast Aluminum Oil Pump

from

$287.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling 10296 high performance oil pump is a 18% high volume upgrade of the M296. The cast aluminum housing is CNC mac

Product Features:
  • 10% Higher pressure high performance upgrade over M295
  • 18% higher volume high performance upgrade over M295 and 10295
  • Die cast aluminum housing
  • Cast iron cover
  • Standard replacement steel rotors
  • Adjustable pressure relief valve
  • Includes original stock replacement pressure spring; not installed
  • Uses 7/8 inch diameter bolt on screen
  • Includes oil pump and oil pump screen mounting o-ring seals
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Premium Drive Train – Engine Assembly (Part No.L6007GMC)

Engine Assembly

from

$3911.99
(PDT) Premium Drivetrain Engines are remanufactured to original equipment (OEM) demanding specifications by an OEM builder. Each engine assembly is manufactured with the highest technology equipment, the most intelligent engineering support, and the best practices available in remanufacturing today.

Product Features:
  • REMANUFACTURING and QUALITY CHECKS – ENGINE BLOCKS: Each block is magnafluxed for cracks and checked for any visible damage to the block or threaded holes before being repainted to the original color. Five CNC machining centers are programmed to precise specifications that meet or exceed those established by the OEM for each engine block. After the engine block is bored, decked, and chamfered, each cylinder is honed with the specified OEM cross-hatch pattern. 100% gauging of all cylinder bores for diameter and roundness after final honing operation. 100% new pistons, rings and bearings are installed in every engine.
  • CYLINDER HEADS: Every head is resurfaced and completely inspected for any visible damage or cracks to the casting or threaded holes. Any heads that have cracks in the combustion chamber are immediately scrapped, no weld repairs. Valve seats are machined, inspected and replaced if necessary. Valve guides are inspected with an air gauge and replaced if necessary. The cam bore is air gauge checked on overhead cam engines and machined if required. 100% new valves, seals and lifters are used in every head. All head and valve assemblies are quantified for leakage using a vacuum decay process.
  • CONNECTING RODS: Each connecting rod is measured against OEM specifications for bend, twist, and center-to-center length before use. The piston pin bore and bearing bore are measured with air gauges for proper dimensions. New torque to yield rod bolts and nuts are installed.
  • CRANKSHAFTS: Crankshafts are machined on a fully automated CNC crank grinder. This enables consistency and critical tolerances for each journal. All oil galley holes are chamfered and brushed after machining and the crankshaft is given a final wash to ensure cleanliness. Each crank is inspected for cracks, bow and all applicable run-out specs for rod and main journals.
  • DYNAMIC ENGINE TESTING: Sims Testing – All engines are cold motored and checked and measured for proper torque to turn, cylinder compression, oil flow, oil pressure as well as monitored for any unusual noises inside the assembly. All engine assemblies quantified for oil gallery, gasket, and casting leakage in the oil passageways.
  • Product might not be available in all states due to local laws.
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Dorman – Harmonic Balancer Assembly (Part No.594-209)

Harmonic Balancer Assembly

from

$132.99
This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.

Product Features:
  • Ideal replacement – this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
  • Durable construction – stringent specifications and careful construction help ensure longevity
  • Thoroughly tested – this harmonic balancer has undergone dimensional verification, material validation and functional testing
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Engine Oil Dipstick: Direct Replacement, Stainless Steel (Part No.917-377)

Engine Oil Dipstick: Direct Replacement, Stainless Steel

from

$21.49
This engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications. Level marks are clearly distinguished and properly gauged for accuracy.

Product Features:
  • Ideal replacement – this engine oil dipstick is designed to match the fit and function of an original equipment dipstick in specified applications
  • Ideal solution – level marks are clearly distinguished and properly gauged for accuracy
  • 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
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Felpro – Oil Pan Gasket Set: PermaDry Molded Rubber, Includes Snap-Ups®, 9 Piece Set (Part No.OS 34500 R)

Oil Pan Gasket Set: PermaDry Molded Rubber, Includes Snap-Ups®, 9 Piece Set

from

$42.99
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
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Dorman – Valve Covers: With Gasket, Direct Replacement, Aluminum, Passenger Side (Part No.264-759)

Valve Covers: With Gasket, Direct Replacement, Aluminum, Passenger Side

from

$114.99
This replacement valve cover matches the fit and function of the original equipment part that may be damaged or warped. Made from quality materials for excellent fit and superior heat resistance, this valve cover has undergone extensive testing.

Product Features:
  • Direct replacement – this valve cover matches the original equipment part for fit and function
  • Durable construction – this valve cover is made of quality materials to withstand extreme temperatures to resist leaking
  • Cost-effective solution – offers original equipment performance at competitive price
  • Quality tested – this part has undergone try-on and material testing to ensure a quality fit and reliable service
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Dorman – Harmonic Balancer Bolt (Part No.917-139)

Harmonic Balancer Bolt

from

$8.49
This engine harmonic balancer bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine harmonic balancer bolt matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bolt 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
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Felpro – Engine Valve Cover Gasket Set (Part No.VS 50088 R)

Engine Valve Cover Gasket Set

from

$33.99
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
  • ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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Felpro – Engine Valve Cover Gasket (Part No.VS 50293 R)

Engine Valve Cover Gasket

from

$21.49
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:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
  • SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
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2003 GMC W4500 Forward Engine Parts

You count on your 2003 GMC W4500 Forward 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 48 Engine Parts ranging in price from $1.29 to $3,644.99, you’re sure to find everything you need for your 2003 GMC W4500 Forward.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 11 different brands like Dorman, Felpro, and Mahle. 2003 GMC W4500 Forward Engine Parts start as low as $1.29!

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 257 extensive product reviews on 2003 GMC W4500 Forward Engine Parts. Some of the top-rated Engine Parts products we carry are Engine Oil Pan with 4.8 stars and Engine Oil Pan 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 W4500 Forward below to get started!

Top-Rated Engine Parts Brands For Your 2003 GMC W4500 Forward

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 W4500 Forward running right for years to come. In our inventory you’ll find brands like Dorman, Felpro, Mahle, and even more.

Popular National Engine Parts

You’ll find popular National brand products across Engine Internals and Engine Gaskets and Seals. All are waiting to get your 2003 GMC W4500 Forward back on the road. Some of the top-rated National products in these categories are:
Multi Purpose Seal
from $28.99
(7)
Multi Purpose Seal
Crankshaft Seals
Multi Purpose Seal
from $25.99
(7)
Multi Purpose Seal
Rear Main Seal Sets

Top-Rated Dorman Engine Parts


If Dorman are what you’re looking for, our inventory holds plenty. We stock Dorman brand Engine Parts for your 2003 GMC W4500 Forward, and some of our most reviewed Dorman parts include:
Timing Cover With Gasket And Seal
from $39.49
(21)
Timing Cover With Gasket And Seal
Timing Covers
Rear Main Seal Cover Kit
from $74.99
(19)
Rear Main Seal Cover Kit
Rear Main Seal Sets
Oil Level Dip Stick Tube
from $24.99
(15)
Oil Level Dip Stick Tube
Engine Oil Dip Stick Tubes

FAQs for 2003 GMC W4500 Forward Engine Parts

What are the most purchased Engine Parts for the 2003 GMC W4500 Forward?

Out of 48 Engine Parts for the 2003 GMC W4500 Forward, the most popular in our inventory are:
Engine Valve Cover Gasket Set
from $33.99
(42)
Engine Valve Cover Gasket Set
Valve Cover Gaskets

What are the top-rated 2003 GMC W4500 Forward Engine Parts?

Top-rated Engine Parts for your 2003 GMC W4500 Forward based on customer reviews/ratings are:
Engine Oil Pan
from $151.99
(13)
Engine Oil Pan
“Easy”
Engine Oil Pan
from $251.99
(10)
Engine Oil Pan
“Good part fit good”
Oil Cooler Line Connector
from $11.29
(10)
Oil Cooler Line Connector
“It fits and doesn’t leak.”