2003 Cadillac Escalade EXT Engine Parts

Essential 2003 Cadillac Escalade EXT Engine Parts

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

Rear Main Seal Cover Kit

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$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
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Mahle – CLEVITE Main Bearing (Part No.A20051069349MAH)

CLEVITE Main Bearing

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$118.86
Clevite is the number one name in replacement engine bearings, delivering on the track and in machine shops around the country. With track proven performance in engines with thousands of horsepower, it is obvious Clevite has the strength to handle any light vehicle application. As more and more OE manufacturers shift to aluminum bearings in OE engines, Clevite has introduced a new line of engine bearings designed to be the highest quality replacement bearings in the industry. Clevite BiMetal engine bearings carry on the tradition and reputation that Clevite has built throughout the course of time. Clevite BiMetal engine bearings feature a 100% lead free aluminum silicon bi-metal material, which includes 60% more silicon than the leading competitor’s bi-metal material for better conditioning of journal surfaces. These BiMetal bearings also offer greater wear resistance than the leading competitor’s bi-metal material, as well as greater seizure resistance. Clevite BiMetal bearings feature 100% bored ID’s for precision and surface characteristics and where appropriate – straight shell main bearings utilizing an umbrella groove that allows for superior oil control and improved pressure.

Product Features:
  • Original Equipment Manufacturer
  • Maximum Load-Bearing Capacity
  • Fatigue-Resistant, adaptable
  • Resistant to Wear and Corrosion
  • Advanced Surface Coatings
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DEA – DEA Engine Mount (Part No.A7000343694DEA)

DEA Engine Mount

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$91.49
Marmon Ride Control (formerly DEA Products) has been a trusted manufacturer of motor mounts in the aftermarket industry for over 30 years. Marmon Ride Control uses the highest quality of raw materials available, and thoroughly tests their products with state-of-the-art lab equipment to ensure that you’ll be installing a mount that will meet or exceed your original mount’s specifications.

Product Features:
  • USA Development and OEM laboratory – 14 OEM Engineers
  • Design Solutions and Installation Enhancements to Failing OEM designs
  • Complete Factory Testing and Vehicle Verification Resources
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Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Fuel Injector O-Ring Kit

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$7.49
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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Dorman – Oil Filler Tube (Part No.A6144703681DOR)

Oil Filler Tube

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$47.52
Oil Filler Tube

GM Genuine Parts – Gen III/IV Lifter Guide (Part No.12595365)

Gen III/IV Lifter Guide

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$14.99
GM Genuine Parts Engine Valve Lifter Guide 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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Victor Reinz – Engine Camshaft Retainer Plate (Part No.71-17533-00)

Engine Camshaft Retainer Plate

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$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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ACDelco – GM Original Equipment Fuel Pump Tank Seal (Part No.E3004295098ACD)

GM Original Equipment Fuel Pump Tank Seal

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$22.52
The ACDelco GM Original Equipment Fuel Pump Tank 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
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Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-291)

Engine Valve Spring Retainer Keeper

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$0.65
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Sealed Power – Engine Valve Lifter (Part No.HT-2148A)

Engine Valve Lifter

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$24.79
Sealed Power® Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
  • New OEM riveted pin retaining design
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Dorman – Harmonic Balancer Bolt (Part No.917-139)

Harmonic Balancer Bolt

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$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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Imperial – Econo-Kool® Engine Oil Cooler (Part No.240459)

Econo-Kool® Engine Oil Cooler

from

$141.99
Product Features:
  • Imperial Econo-Kool« engine oil cooler kit
  • Size: 3/4″ x 7-1/2″ x 12-1/2″
  • Light-duty applications
  • All except Chevrolet V8 applications
  • Size: 3/4 in. x 7-1/2 in. x 12-1/2 in.
  • Light duty applications
  • All except Chevrolet V8 applications
  • Lightweight construction with high-efficiency turbulators
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Dorman – Help – Coolant Bypass Seals (Part No.56390)

Coolant Bypass Seals

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$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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ACDelco – GM Original Equipment Engine Hydraulic Cam Follower (Part No.A4010352802ACD)

GM Original Equipment Engine Hydraulic Cam Follower

from

$63.05
The ACDelco GM Original Equipment Engine Hydraulic Valve Adjuster/Valve Lifter is a GM-recommended replacement for your vehicle’s original component. It automatically maintains a Zero valve lash condition, preventing valve train noise and unnecessary valve train component wear. This original equipment engine hydraulic valve adjuster/valve lifter has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Stay with the brand of parts your General Motors vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. This is important on these types of high-labor-hour repairs because the part designs are enhanced to incorporate GM OE updates, upgrades, and Technical Service Bulletins. Only ACDelco can offer complete late-model coverage and all ACDelco GM OE Engine Components.

Product Features:
  • Adjusts the valves on your vehicle’s engine for proper performance
  • 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 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
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Mahle – Valley Pan Gasket (Part No.A8044580040MAH)

Valley Pan Gasket

from

$71.67
Valley Pan Gasket

National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

from

$43.99
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:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Dorman – Engine Timing Cover (Part No.A5350700896DOR)

Engine Timing Cover

from

$73.13
Save time and money with Dorman’s Engine Timing Cover. Each one comes with a gasket as well as any other components needed for a complete repair.

Product Features:
  • Direct replacement for a proper fit every time
  • Where applicable, seal and/or oil pump gaskets are provided for powerful leak prevention
  • Corrosion-resistant for long lasting performance
  • High quality plastic or metal construction resists warping, cracking and porousness
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MAHLE Original – Oil Cooler Element Gasket (Part No.B31867)

Oil Cooler Element Gasket

from

$6.99
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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Felpro – Engine Lifter Valley Cover Gasket Set (Part No.MS 92465)

Engine Lifter Valley Cover Gasket 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 repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Includes all parts needed to complete the repair
  • Includes all parts needed to complete the repair
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Carquest Premium – Camshaft Sensor (Part No.CSC1064)

Camshaft Sensor

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$59.99
A leader in vehicle electronic solutions, each premium product meets or exceeds OE specifications in appearance, fit, and function, ensuring easy installation and excellent performance. The product has been tested under extreme environments, including the

Product Features:
  • Reliable circuit board and product structure design, 3D proofing, and field test verification to ensure correct signal output at all speeds.
  • Manufactured in an anti-static environment to ensure reliability and stability.
  • Extreme temperature and salt spray tests simulate real-world vehicle conditions to ensure durability and reliability.
  • Providing this premium product line, we meet the service professionals needs with the highest quality product every time the part comes out of the box.
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Sealed Power – Engine Push Rod (Part No.RP-3349)

Engine Push Rod

from

$6.29
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Spartan – Engine Long Block; Chev 6.2 L9H 09-13 Engine (Part No.DC112)

Engine Long Block; Chev 6.2 L9H 09-13 Engine

from

$5019.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
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Dorman – Remanufactured Body Control Module (Part No.502-000)

Remanufactured Body Control Module

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$308.99
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
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Sealed Power – Main Bearing Set (Part No.152M 10)

Main Bearing Set

from

$118.99
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • IROX coating
  • Polymer coating enhances bearing
  • Made with silicon for greater surface hardness
  • Silicon particles help polish crankshaft journal (reduces wear during operation)
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Felpro – Engine Crankshaft Repair Sleeve (Part No.16228)

Engine Crankshaft Repair Sleeve

from

$10.29
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:
  • Engine$aver Hardware cost-saving application
  • Repairs worn sealing surfaces to assure a leak free repair
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Validated for fit, form, and function
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Felpro – Engine Valve Cover Grommet Set (Part No.ES 72233)

Engine Valve Cover Grommet Set

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:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Dorman – Valve Covers: With Gasket, Direct Replacement, Aluminum, Driver Side (Part No.264-965)

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

from

$184.99
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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Popular 2003 Cadillac Escalade EXT Engine Parts Categories

2003 Cadillac Escalade EXT Engine Parts

You count on your 2003 Cadillac Escalade EXT 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 168 Engine Parts ranging in price from $0.65 to $3,729.99, you’re sure to find everything you need for your 2003 Cadillac Escalade EXT.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 26 different brands like Felpro, Dorman, and Sealed Power. 2003 Cadillac Escalade EXT Engine Parts start as low as $0.65!

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 615 extensive product reviews on 2003 Cadillac Escalade EXT 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 Cadillac Escalade EXT below to get started!

Top-Rated Engine Parts Brands For Your 2003 Cadillac Escalade EXT

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

Popular MAHLE Original Engine Parts

You’ll find popular MAHLE Original brand products across Oil Cooler Parts. All are waiting to get your 2003 Cadillac Escalade EXT back on the road. Some of the top-rated MAHLE Original products in these categories are:
Oil Cooler Element Gasket
from $6.99
(1)
Oil Cooler Element Gasket
Engine Oil Cooler Accessories

FAQs for 2003 Cadillac Escalade EXT Engine Parts

What are the most purchased Engine Parts for the 2003 Cadillac Escalade EXT?

Out of 168 Engine Parts for the 2003 Cadillac Escalade EXT, the most popular in our inventory are:
TIMING COVER GASKET SET
from $51.99
(42)
TIMING COVER GASKET SET
Timing Cover Gasket Sets
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 Cadillac Escalade EXT Engine Parts?

Top-rated Engine Parts for your 2003 Cadillac Escalade EXT based on customer reviews/ratings are:
Multi-Purpose O-Ring
from $5.49
(41)
Multi-Purpose O-Ring
“Saved thousands on a motor rebuild”
Stock Replacement OE Type Oil Pump
from $121.99
(26)
Stock Replacement OE Type Oil Pump
“Updated design over factory took care of the small ticking sound in engine”
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”