2003 Ford Focus Tune-Up Parts
57 parts verified to fit your 2003 Ford Focus for a complete tune-up. This is an easy DIY project — estimated 1-2 hours.
Air Filters
(6)primary
aFe
aFe MagnumFLOW Air Filters OER P5R A/F P5R Ford Focus 00-03
$71.00
aFe
aFe MagnumFLOW Air Filters OER PDS A/F PDS Ford Focus 00-03
$76.00
K&N
K&N Filter Universal Rubber Filter 2 1/2 inch Flange 6 inch Base 5 inch Top 6 1/2 inch Height
$68.99
K&N
K&N Filter Universal Rubber Filter 2 3/4 inch Flange 6 inch Base 5 inch Top 5 1/2 inch Height
$68.99
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
$57.99
Fuel Injectors
(7)companion
Victor Reinz
MAHLE Original Fuel Injector O-Ring Kit
$3.70
Grams Performance
Grams Performance 1000cc Focus ZXT/ SVT/ RS/ SVO/ Super Coupe/ 2.3T INJECTOR KIT
$479.14
Grams Performance
Grams Performance 1150cc Focus ZXT/ SVT/ RS/ SVO/ Super Coupe/ 2.3T INJECTOR KIT
$587.80
Grams Performance
Grams Performance 550cc Focus ZXT/ SVT/ RS/ SVO/ Super Coupe/ 2.3T INJECTOR KIT
$380.83
Fel-Pro
Fel-Pro 15-17 Ford F-150/07-12 Mustang Fuel Injector O-Ring Kit
$3.48
Grams Performance
Grams Performance 1600cc Focus ZXT/ SVT/ RS/ SVO/ Super Coupe/ 2.3T INJECTOR KIT
$914.83
Grams Performance
Grams Performance 750cc Focus ZXT/ SVT/ RS/ SVO/ Super Coupe/ 2.3T INJECTOR KIT
$479.14
Fluids & Additives
(44)consumable
Royal Purple
Royal Purple Premium Synthetic High Performance Multi-Grade 5W20 Motor Oil - 5 Quart
$127.59
Motul
Motul 5L Specific 948B 5W20 Oil
$230.55
LIQUI MOLY
LIQUI MOLY 5L Molygen New Generation Motor Oil SAE 5W20
$197.86
K&N
K&N 87-92 Supra Turbo /93-98 Supra Turbo/Non-Turbo / 06-09 Miata / 07-09 Mazdaspeed3 Performance Gol
$17.99
LIQUI MOLY
LIQUI MOLY 1L Top Tec MTF 5400 75W90
$111.40
aFe
aFe Pro GUARD D2 Oil Filter 2.9in OD x 2.9in HT
$42.32
aFe
aFe PROGUARD Oil Filter
$11.26
LIQUI MOLY
LIQUI MOLY 1L Brake Fluid DOT 4
$66.14
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. All parts shown on this page are verified to fit your specific vehicle.
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?
Yes, all parts on this page are verified to fit the 2003 Ford Focus using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make tune-up parts for the 2003 Ford Focus?
We carry tune-up parts from trusted brands including aFe, K&N, Victor Reinz, Grams Performance, and Fel-Pro. 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.