2003 Ford Focus Engine Parts

Essential 2003 Ford Focus Engine Parts

Cloyes Gear – Engine Oil Pump Sprocket (Part No.S903)

Engine Oil Pump Sprocket

from

$13.99
Along with the timing chain, tensioners, and guides, sprockets are an integral component within the timing system. Timing gears and sprockets are available as part of complete timing kits as well as for individual purchase and installation

Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • 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
  • Refer to our online catalog for detailed application-specific information
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Cloyes Gear – Engine Timing Chain Tensioner (Part No.9-5514)

Engine Timing Chain Tensioner

from

$54.99
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
  • Hydraulic
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Crankshaft Rebuilders – Remanufactured Crankshaft Kit (Part No.19690)

Remanufactured Crankshaft Kit

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$304.99
Remanufactured precision machined OE crankshafts.

Product Features:
  • Includes matching rod and main bearings.
  • Journals Micropolished.
  • All units subject to complete quality inspection.
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Dorman – Help – Engine Oil Filler Cap: Twist Lock, Direct Fit, Easy To Install, 1 Pack (Part No.80991)

Engine Oil Filler Cap: Twist Lock, Direct Fit, Easy To Install, 1 Pack

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$8.49
This engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine oil filter cap is designed to match the fit and function of the original cap on specified vehicles
  • Restores functionality – reliable replacement for an original part that is missing or cracked due to heat and 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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Mahle – Mahle Oil Pan Gasket Set (Part No.A6131197525MAH)

Mahle Oil Pan Gasket Set

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$19.42
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
  • Head sets give you original equipment form, fit, and function
  • Utilizes OE equivalent or better materials in all head sets
  • Packaged in shrink wrapped tray
  • Every part you need to complete your gasket repair in one package unless otherwise stated
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Felpro – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.26250 PT)

Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts

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$66.99
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:
  • PROPRIETARY COATING – Exclusive coating helps withstand rougher sealing surface finishes up to 80 Ra
  • UNIQUE COMBUSTION SEAL – Exclusive LaserWeld stopper layer technology reduces gasket damage from blow out and helps ensure a stronger combustion seal
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Cloyes Gear – Engine Timing Crankshaft Sprocket (Part No.S1093)

Engine Timing Crankshaft Sprocket

from

$60.99
Product Features:
  • Featuring precision-tooled or machined tooth form and precision-machined bore for true fit, timing chain sprockets offer reliability and dependability for engine rebuilds and typical replacement jobs
  • 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
  • Refer to our online catalog for detailed application-specific information
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Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T4175)

Engine Water Pump: New, Gasket/Seals Included

from

$57.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Sealed Power – Engine Piston (Part No.WH848CP)

Engine Piston

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$50.99
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:
  • Helps improve cylinder sealing for less blow-by
  • Retains standard ring gaps in top groove
  • DUROSHIELD« skirt-coated piston
  • Moly-graphite coating extends engine life
  • Reduces friction for higher fuel economy
  • Prevents damage from inadequate lubrication on start-up
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Carquest Premium – Engine Variable Valve Timing (VVT) Sprocket (Part No.VVA1375)

Engine Variable Valve Timing (VVT) Sprocket

from

$99.99
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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Dayco – Timing Belt Kit; With Belt, Camshaft Belt Tensioner, 2 Piece Set (Part No.95283K1)

Timing Belt Kit; With Belt, Camshaft Belt Tensioner, 2 Piece Set

from

$78.99
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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Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26718)

O-Ring & Gasket A/C System Seal Kit

from

$11.29
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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Sealed Power – Engine Connecting Rod Bearing (Part No.1400AA)

Engine Connecting Rod Bearing

from

$6.99
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:
  • A-Series bi-metal aluminum alloy
  • Greater seizure resistance than tri-metal material
  • Dramatically reduces or eliminates bearing wear
  • Made with silicon to provide greater surface hardness
  • Silicon particles help polish crankshaft journal to further reduce wear during operation
  • Utilizes ISO & QS certified manufacturing
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Sealed Power – Engine Valve Lifter (Part No.HT-2217)

Engine Valve Lifter

from

$25.99
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.
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Felpro – Engine Oil Pump Seal (Part No.72705)

Engine Oil Pump Seal

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:
  • 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
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Imperial – Ultra-Cool Engine Oil Cooler Kit (Part No.240457)

Ultra-Cool Engine Oil Cooler Kit

from

$167.99
Product Features:
  • Size: 3/4 in. x 10 in. x 12-1/4 in.
  • Medium duty applications
  • All except Chevrolet V8 applications
  • Two-pass design for increased cooling
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GMB – Timing Belt Idler, 47mm OD (Part No.A5291169698GMB)

Timing Belt Idler, 47mm OD

from

$41.98
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. Center Bolt is included with this Idler Belt
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Cloyes Gear – Engine Oil Pump Chain (Part No.C706F)

Engine Oil Pump Chain

from

$25.99
A timing chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine’s valves to open and close during each cylinder’s firing. Available in kits or as a stand-alone product, our chains are pre-stressed and heat-treated for increased durability. Our chains are engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment

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
  • Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • Engineered and manufactured with precision pitch control for proper chain-to-sprocket tooth fitment
  • CAD designed and manufactured using premium materials
  • Refer to our online catalog for detailed application-specific information
  • 8mm X 4×3 X 54 Fine Finish Links
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NTK – Engine Cylinder Head Temperature Sensor (Part No.EJ0011)

Engine Cylinder Head Temperature Sensor

from

$39.99
The Engine Cylinder Head Temperature Sensor determines the exact temperature of the cylinder head by sending an analog signal to the ECM to calculate timing and fuel delivery for maximum engine performance, efficiency and engine operating temperature. The Engine Cylinder Head Temperature Sensor is located on the cylinder head. Reasons for replacement include: check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.

Product Features:
  • OE MATCHED: Probe length matched to OE. Thread sealer pre-applied if necessary
  • FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
  • THE NTK DIFFERENCE: Thread sealant/o-ring installed where applicable. Thermistor placement within the housing matches OE to ensure proper output. Proper thermal conductive grease to provide accurate temperature transfer to the thermistor
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Spartan – Engine Cylinder Head; Ford 2.0 08-11 Head (Part No.2FF1)

Engine Cylinder Head; Ford 2.0 08-11 Head

from

$618.99
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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Dayco – Timing Component Kit; With 2 Camshaft Belt Tensioners And Idler, 3 Piece Set (Part No.84090)

Timing Component Kit; With 2 Camshaft Belt Tensioners And Idler, 3 Piece Set

from

$104.99
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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Felpro – Engine Conversion Gasket Set (Part No.CS 9005-2)

Engine Conversion Gasket Set

from

$71.99
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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Melling – Stock Replacement Oil Pump Screen (Part No.329S)

Stock Replacement Oil Pump Screen

from

$33.99
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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Felpro – Engine Valve Cover Gasket Set (Part No.VS 50638 R)

Engine Valve Cover Gasket Set

from

$29.99
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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Cloyes Gear – Engine Oil Pump Chain Tensioner (Part No.9-5516)

Engine Oil Pump Chain Tensioner

from

$15.99
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
See More

Felpro – Engine Oil Cooler Gasket (Part No.72709)

Engine Oil Cooler Gasket

from

$24.99
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
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Cloyes Gear – Engine Timing Chain Tensioner Guide (Part No.9-5555)

Engine Timing Chain Tensioner Guide

from

$30.99
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:
  • Extensively tested and measured for function, fitment, and durability to ensure optimal performance
  • CAD designed and manufactured using premium materials
  • 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
  • Refer to our online catalog for detailed application-specific information
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Dorman – Engine Oil Pan: Direct Fit, Aluminum, Rear Sump (Part No.264-333)

Engine Oil Pan: Direct Fit, Aluminum, Rear Sump

from

$138.99
Oil pan leaking? This engine oil pan is precision-engineered to match the original equipment pan on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this engine oil pan is made to match the original pan on specific vehicles
  • Complete assembly – includes replacement pan and drain plugs to match original components
  • Durable design – high-strength coating prevents future corrosion
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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2003 Ford Focus Engine Parts

You count on your 2003 Ford Focus 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 172 Engine Parts ranging in price from $1.29 to $2,866.99, you’re sure to find everything you need for your 2003 Ford Focus.

Brands matter. If you want to shop a specific Engine Parts brand, we stock 31 different brands like Felpro, Anchor, and Carquest Premium. 2003 Ford Focus 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 1,372 extensive product reviews on 2003 Ford Focus Engine Parts. Some of the top-rated Engine Parts products we carry are Engine Mount Bushing with 4.3 stars and Premium Timing Belt, 48.39 Inch With 129 Round Tooth 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 Ford Focus below to get started!

Top-Rated Engine Parts Brands For Your 2003 Ford Focus

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 Ford Focus running right for years to come. In our inventory you’ll find brands like Felpro, Anchor, Carquest Premium, and even more.

Popular Sealed Power Engine Parts

You’ll find popular Sealed Power brand products across Valve Cover and Cylinder Heads and Engine Internals. All are waiting to get your 2003 Ford Focus back on the road. Some of the top-rated Sealed Power products in these categories are:
Engine Valve Lifter
from $25.99
(1)
Engine Valve Lifter
Engine Valve Lifters
Engine Connecting Rod Bearing Set
from $26.49
(1)
Engine Connecting Rod Bearing Set
Standard Rod Bearing Sets

FAQs for 2003 Ford Focus Engine Parts

What are the most purchased Engine Parts for the 2003 Ford Focus?

Out of 172 Engine Parts for the 2003 Ford Focus, the most popular in our inventory are:
Engine Valve Cover Gasket Set
from $56.99
(25)
Engine Valve Cover Gasket Set
Valve Cover Gaskets
REAR MAIN BEARING SEAL SET
from $56.99
(5)
REAR MAIN BEARING SEAL SET
Crankshaft Seals

What are the top-rated 2003 Ford Focus Engine Parts?

Top-rated Engine Parts for your 2003 Ford Focus based on customer reviews/ratings are:
Engine Mount Bushing
from $51.88
(37)
Engine Mount Bushing
“Same day pickup awesome”
Premium Timing Belt, 48.39 Inch With 129 Round Tooth
from $63.99
(8)
Premium Timing Belt, 48.39 Inch With 129 Round Tooth
“Fit Perfectly!”
Premium OEM Replacement Harmonic Balancer; 133.5mm Diameter
from $63.99
(7)
Premium OEM Replacement Harmonic Balancer; 133.5mm Diameter
“We haven’t installed the part yet, but it’s exactly what we were looking for and desperately needed. I tried getting the part from Rockauto, but the p”