2003 Ford Focus Tune-Up Parts
186 parts listed for your 2003 Ford Focus for a complete tune-up. Choose your trim on product pages to confirm exact fit. This is an easy DIY project - estimated 1-2 hours.
Air Filters
(12)primary
aFe
aFe MagnumFLOW Air Filters OER P5R A/F P5R Ford Focus 00-03
$78.23
aFe
aFe MagnumFLOW Air Filters OER PDS A/F PDS Ford Focus 00-03
$82.84
ATP
ATP Carbon Activated Premium Cabin Air Filter
$33.59
Bosch
Bosch Air Filter
$4.89
Pronto
Engine Air Filter
$11.21
GPD
gpd Cabin Air Filter 1211241
$12.26
K&N
K&N 97-08 Ford F150 5.4L V8 Fuel Filter
$19.99
K&N
K&N 98-04 Ford Focus / 02-04 Focus SVT Drop In Air Filter
$65.13
Fuel Injectors
(56)companion
Dorman
5/16 In. Fuel Line Retaining Clips
$4.06
Autobest
Autobest F1337A Fuel Pump Module Assembly
$101.90
Autobest
Autobest F1379A Fuel Pump Module Assembly
$93.35
Autobest
Autobest F300S Fuel Pump Strainer
$2.36
US Motor Works
ELEC FUEL PUMP
$40.87
Spectra Premium
Electric Fuel Pump
$52.50
Fel-Pro
Fel-Pro 15-17 Ford F-150/07-12 Mustang Fuel Injector O-Ring Kit
$5.79
Vernet
Fuel Cap
$8.05
Fluids & Additives
(118)consumable
aFe
aFe 06-15 Mazda MX-5 Miata ProGuard HD Oil Filter - 4 Pack
$42.32
aFe
aFe Pro GUARD D2 Oil Filter 2.9in OD x 2.9in HT
$55.12
aFe
aFe Pro GUARD D2 Oil Filter 97-08 Ford Trucks V6 4.2L / V8 4.6L (4 Pack)
$72.93
aFe
aFe ProGuard D2 Fluid Filters Oil F/F OIL Ford Trucks 97-08 V6-4.2L V8-4.6L
$29.18
aFe
aFe ProGuard D2 Oil Filter w/ 3/8in Ratchet Drive to Remove Filter 07-11 Jeep Wrangler JK V6-3.8L
$24.06
aFe
aFe PROGUARD Oil Filter
$24.06
Dorman
Automatic Transmission Oil Cooler
$120.40
Bosch
Bosch Oil Filter
$4.48
Tune-Up for Other Ford Focus Years
Other Jobs for Your 2003 Ford Focus
Frequently Asked Questions
What parts do I need for a tune-up on my 2003 Ford Focus?
A complete tune-up on the 2003 Ford Focus typically requires air filters, fuel injectors, fluids & additives. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a tune-up take on a 2003 Ford Focus?
A tune-up typically takes 1-2 hours and is rated as easy difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a tune-up myself?
Yes! A tune-up is an easy DIY project that most people can do with basic hand tools. It's a great way to save money on labor costs.
Are these parts guaranteed to fit my 2003 Ford Focus?
These parts are listed for the 2003 Ford Focus using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make tune-up parts for the 2003 Ford Focus?
We carry tune-up parts from trusted brands including aFe, ATP, Bosch, Pronto, and GPD. Filter by brand to find your preferred manufacturer.
How much does a tune-up cost for a 2003 Ford Focus?
The cost of a tune-up for the 2003 Ford Focus depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.