2003 Jeep Wrangler Engine Parts

Essential 2003 Jeep Wrangler Engine Parts

Melling – Stock Replacement Oil Pump Screen (Part No.81-AS6)

Stock Replacement Oil Pump Screen

from

$43.99
A new Melling pick-up tube/oil screen assembly provides the lubrication oil as well as protection for your oil pump from materials that find their way into the engine oil supply system. Contaminates enter your oil system via engine ware, extended time between oil changes and other internal engine sources. These contaminates can interfere with the proper oil flow and pressure spring functions resulting in engine damage and/or failure. Melling suggests that a new properly installed oil pump pick-up tube/screen be a part of every oil pump installation. Several Melling oil pump applications are offered with an oil screen included.

Product Features:
  • Manufactured from high quality durable materials for long wear
  • Precision engineering protects the engine from dirt and contaminants
  • Designed for long-life and worry-free performance
  • Meets or exceeds original equipment specifications
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Carquest Premium – Engine Camshaft Position Sensor Connector (Part No.PTC2976)

Engine Camshaft Position Sensor Connector

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$62.99
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.
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Felpro – Engine Conversion Gasket Set (Part No.CS 8169-3)

Engine Conversion Gasket 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:
  • Conversion Sets (CS) provide every gasket for lower engine work – add a Head Set (HS) for complete engine overhaul work
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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Dorman – Steel Cup Expansion Plug 1-1/4 In., SC, Height 0.300 (sold by each) (Part No.555-024)

Steel Cup Expansion Plug 1-1/4 In., SC, Height 0.300 (sold by each)

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$1.29
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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RT Offroad – Valve Cover Kit, Red, with 4.0L Engine (Part No.RT35002)

Valve Cover Kit, Red, with 4.0L Engine

from

$210.99
Crown Automotive offers the largest line of replacement parts for Jeep(R), as well as a growing line of parts for Chrysler and Dodge.

Product Features:
  • Limited 12 Month Or 12,000 Mile Warranty
  • Durable red finish with polished fins and engine script
  • Includes Valve Cover, Gasket, Oil Cap, Grommets, and Hardware;
  • Some modification may be required
  • Replacement Grommet Part Number 2946079 (2 Per Cover); Replacement Cap Use Part Number 33001016Al
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Dayco – Timing Belt Kit; With Belt, Camshaft Belt Tensioner And Idler, 3 Piece Set (Part No.95265K4)

Timing Belt Kit; With Belt, Camshaft Belt Tensioner And Idler, 3 Piece Set

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$173.99
Demanded by today’s OEMs and manufactured to meet critical fit, form and function requirements, Dayco timing belt kits ensure parts accuracy, time savings and long-lasting performance. This kit is designed for the replacement of worn or damaged original equipment timing belts, tensioners and idler pulleys – each matched to a specific vehicle make and model.

Product Features:
  • Engineered for both domestic and import vehicle applications with a timing belt
  • All components needed for a complete timing belt replacement included in one box
  • Includes premium Dayco components and tough, wear-resistant belt
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Felpro – Engine Crankshaft Seal Kit (Part No.TCS 45962)

Engine Crankshaft Seal Kit

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$16.29
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:
  • 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
  • Includes all the parts necessary to complete the repair unless otherwise noted
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Felpro – Engine Cylinder Head Bolt Set (Part No.ES 72896)

Engine Cylinder Head Bolt Set

from

$30.49
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
  • Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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GMB – Timing Belt Idler (Part No.A5291169679GMB)

Timing Belt Idler

from

$47.05
GMB is one of the world’s largest designers and manufacturers of automotive service products. GMB offers OE quality water pumps, universal joints, tensioner idler bearings and chassis parts for most European, Asian and Domestic vehicles.
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Felpro – Engine Valve Cover Grommet Set (Part No.ES 73026)

Engine Valve Cover Grommet Set

from

$14.49
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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Sealed Power – Engine Oil Pump Repair Kit (Part No.224-51387)

Engine Oil Pump Repair Kit

from

$159.99
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.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Cloyes Gear – Engine Balance Shaft Chain Tensioner (Part No.9-5298)

Engine Balance Shaft Chain Tensioner

from

$11.99
A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design, tensioners can use spring tension or hydraulic pressure to properly tension the chain. Please refer to our online catalog for detailed application-specific information

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Meet or exceed OEM performance requirements
  • Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience
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Cloyes Gear – Engine Timing Chain Guide (Part No.9-5748)

Engine Timing Chain Guide

from

$7.99
A timing chain guide serves as a track or guide, for the timing chain, connecting the crankshaft and camshaft. Designed to meet or exceed OEM performance requirements, timing guides, which are available in kits or as a stand-alone product, utilize the latest in design and material technology, ensuring quiet and maintenance-free experience

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Designed to meet or exceed OEM performance requirements
  • Refer to our online catalog for detailed application-specific information
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Sealed Power – Engine Push Rod (Part No.RP-3275)

Engine Push Rod

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$5.29
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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Cloyes Gear – Engine Timing Damper (Part No.9-5337)

Engine Timing Damper

from

$15.79
A timing chain tensioner maintains appropriate tension in the timing chain. Depending on design, tensioners can use spring tension or hydraulic pressure to properly tension the chain. Please refer to our online catalog for detailed application-specific information

Product Features:
  • Recommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing
  • CAD designed and manufactured using premium materials
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Meet or exceed OEM performance requirements
  • Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experience
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Mahle – Camshaft Follower (Part No.A4010215883MAH)

Camshaft Follower

from

$20.06
MAHLE Cleveite Inc. is not responsible for failures resulting from owner, operator or third party abuse or neglect including, but not limited to engine operation without adequate lubricant or coolant, over or under-fuelling, over-speeding, lack of proper maintenance to cooling, lubrication or air intake systems, improper storage, starting, warm-up, run-in or shutdown procedures or the continued operation of an engine after the first sign of a malfunction. MAHLE Cleveite Inc. is not responsible for failures resulting from improper installation or repair procedures, alteration or the misapplication of parts, or use in engines modified for competition or levels of performance beyond the engine manufacturers original specifications. Mahle/Cleveite – (The MAHLE Group) is one of the largest global automotive parts manufacturers, specializing in Engine Components, Filtration and Peripherals.
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Dorman – Timing Cover Kit – Includes Gasket (Part No.635-409)

Timing Cover Kit - Includes Gasket

from

$76.99
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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Felpro – TIMING COVER GASKET SET (Part No.72706)

TIMING COVER GASKET SET

from

$13.79
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:
  • Each gasket is built to meet 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
  • Validated for fit, form, and function
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Felpro – Multi-Purpose O-Ring (Part No.70725)

Multi-Purpose O-Ring

from

$4.49
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
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Dorman – Rubber Expansion Plug 1-3/8 In. – Size Range 1-3/8 In. – 1-1/2 In. (sold by each) (Part No.570-008)

Rubber Expansion Plug 1-3/8 In. - Size Range 1-3/8 In. - 1-1/2 In. (sold by each)

from

$3.99
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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Dayco – Timing Component Kit; With Camshaft Belt Tensioner And Idler, 2 Piece Set (Part No.84102)

Timing Component Kit; With Camshaft Belt Tensioner And Idler, 2 Piece Set

from

$156.99
Manufactured to meet critical OE quality fit, form and function requirements demanded by today’s vehicle manufacturers, Dayco’s timing component kit ensures long lasting peak performance. This kit is designed to replace worn or damaged original equipment timing belts, tensioners and idler pulleys. It includes pre-packaged tensioners, idler pulleys and instructions – each matched to a specific make, model and vehicle year.

Product Features:
  • Engineered for the majority of domestic and import vehicle applications with a timing belt
  • All components needed for a complete timing belt replacement included in one box
  • Includes premium Dayco components and a tough, wear-resistant belt
  • Meets or exceeds OE quality
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Driveworks – Camshaft Seal (Part No.S-320249)

Camshaft Seal

from

$5.49
Product Features:
  • Brand may vary by location
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Omix – Engine Mount (Part No.17473.04)

Engine Mount

from

$44.99
Is your Jeep engine moving too much when you rev it up? Are there unusual noises when you accelerate? The rubber in the engine mounts takes a beating from engine torque every time you use the gas pedal. Omix-ADA offers high quality replacement engine moun

Product Features:
  • Left Or Right Side
  • OE Style
  • Direct Fit
  • Limited 5 Year Warranty
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Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26762)

O-Ring & Gasket A/C System Seal Kit

from

$24.29
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All the seals needed to complete the job
  • Compatible with both R12 and R134a refrigerants
  • Application specific
  • SUV & rear air applications
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Premium Drive Train – Engine Assembly (Part No.L4092JAF)

Engine Assembly

from

$2184.99
(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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Mahle – Mahle Intake Valve (Part No.A4060216744MAH)

Mahle Intake Valve

from

$25.56
MAHLE manufactures intake and exhaust valves in forged and hot-extruded versions in a multitude of materials for gasoline and diesel engines of every size. Depending on the stresses they are subjected to, the valves are reinforced around the seat, hardened, nitrided, or chrome-plated. Sodium-filled hollow valves can be used for extremely high thermal and mechanical loads. Since stresses on the components continue to rise in modern engines, MAHLE is focusing on the ongoing development of cooled valves.

Product Features:
  • OE Quality
  • Optimized for strength
  • Heat and corrosion resistant
  • Chromium plated or nitrided
  • Stem optimized to resist wear
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Felpro – Fuel Injection Plenum Gasket Set (Part No.MS 93220)

Fuel Injection Plenum Gasket Set

from

$6.79
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
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Mahle – Mahle Intake Plenum Gasket Set (Part No.A8048417717MAH)

Mahle Intake Plenum Gasket Set

from

$8.74
WARNING: This item cannot be returned for a replacement or refund if opened! Mahle is the largest gasket manufacturer in the world, providing you original equipment design and quality and world class aftermarket service. Mahle does not just cut gaskets – it designs total system sealing approaches that utilize application engineering. This means that regardless of what application you are trying to seal, you can count on Mahle doing the research and testing to provide the optimum material and technology for that specific application – this systems sealing approach requires a variety of materials. No other gasket manufacturer offers the Application Engineered approach to sealing an engine. A variety of different gasket materials insure an engine gets the optimal seal. All gaskets are not created equal – Mahle gaskets prove it every day.

Product Features:
  • Original equipment design and quality
  • Utilizes OE equivalent or better materials
  • Packaged in shrink wrapped tray
  • Every part you need to complete your gasket repair in one package unless otherwise stated
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Popular 2003 Jeep Wrangler Engine Parts Categories

2003 Jeep Wrangler Engine Parts

You count on your 2003 Jeep Wrangler 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 196 Engine Parts ranging in price from $1.49 to $2,439.99, you’re sure to find everything you need for your 2003 Jeep Wrangler.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 34 different brands like Felpro, Sealed Power, and Carquest Premium. 2003 Jeep Wrangler Engine Parts start as low as $1.49!

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 1,704 extensive product reviews on 2003 Jeep Wrangler Engine Parts. Some of the top-rated Engine Parts products we carry are Harmonic Balancer Assembly with 4.6 stars and Premium OEM Replacement Harmonic Balancer; 182mm Diameter with 4.6 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 Jeep Wrangler below to get started!

Top-Rated Engine Parts Brands For Your 2003 Jeep Wrangler

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 Jeep Wrangler running right for years to come. In our inventory you’ll find brands like Felpro, Sealed Power, Carquest Premium, and even more.

Popular Crankshaft Rebuilders Engine Parts

You’ll find popular Crankshaft Rebuilders brand products across Engine Kits. All are waiting to get your 2003 Jeep Wrangler back on the road. Some of the top-rated Crankshaft Rebuilders products in these categories are:
Remanufactured Crankshaft Kit
from $244.99
(1)
Remanufactured Crankshaft Kit
Engine Crankshaft Kits

FAQs for 2003 Jeep Wrangler Engine Parts

What are the most purchased Engine Parts for the 2003 Jeep Wrangler?

Out of 196 Engine Parts for the 2003 Jeep Wrangler, the most popular in our inventory are:
Engine Valve Lifter
from $5.99
(11)
Engine Valve Lifter
Engine Valve Lifters
Engine Push Rod
from $5.29
(2)
Engine Push Rod
Push Rods

What are the top-rated 2003 Jeep Wrangler Engine Parts?

Top-rated Engine Parts for your 2003 Jeep Wrangler based on customer reviews/ratings are:
Harmonic Balancer Assembly
from $65.99
(19)
Harmonic Balancer Assembly
“Quality part that fit perfectly.”
Premium OEM Replacement Harmonic Balancer; 182mm Diameter
from $44.99
(18)
Premium OEM Replacement Harmonic Balancer; 182mm Diameter
“EXACT FIT, GOOD PRICE, READY ON TIME.”
Premium Timing Belt, 54.77 Inch With 146 Round Tooth
from $62.99
(18)
Premium Timing Belt, 54.77 Inch With 146 Round Tooth
“Fit right on no fighting like some of the other reviews”