2004 Subaru Legacy Tune-Up Parts
203 parts listed for your 2004 Subaru Legacy 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
(21)primary
aFe
Part # 30-10010
aFe MagnumFLOW Air Filters OER P5R A/F P5R Nissan Cars 90-11 V6 Trucks 90-10
- Type
- Engine
$78.48
aFe
Part # 31-10010
aFe MagnumFLOW Air Filters OER PDS A/F PDS Nissan Cars 90-11 V6 Trucks 90-10
- Type
- Engine
$83.48
Denso
Part # 143-3198
Air Filter
- Type
- Engine
$20.01
Denso
Part # 143-3200
Air Filter
- Type
- Engine
$15.37
Beck Arnley
Part # 042-1712
AIR FILTER
- Type
- Engine
$24.82
Beck Arnley
Part # 042-1625
AIR FILTER
- Type
- Engine
$22.16
Hengst
Part # E880L
Air filter insert
- Type
- Engine
$12.03
Corteco
Part # 21652539
Cabin Air Filter
- Type
- Engine
$12.16
Fuel Injectors
(34)companion
Autobest
Part # F330S
Autobest F330S Fuel Pump Strainer
$3.58
Autobest
Part # F4230
Autobest F4230 In Tank Electric Fuel Pump
$19.72
Autobest
Part # F4611A
Autobest F4611A Fuel Pump Module Assembly
$162.43
DeatschWerks
Part # 9-0791
DeatschWerks 02-07 WRX/STi / 93-07 Impreza / 90-07 Legacy Fuel Pump Set Up Kit
$25.25
DeatschWerks
Part # 02J-00-1000-4
DeatschWerks 04-06 STi / 04-06 Legacy GT EJ25 1000cc Side Feed Injectors *DOES NOT FIT OTHER YEARS*
$689.54
DeatschWerks
Part # 02J-00-0740-4
DeatschWerks 04-06 STi / 04-06 Legacy GT EJ25 740cc Side Feed Injectors *DOES NOT FIT OTHER YEARS*
$638.34
DeatschWerks
Part # 02J-00-0850-4
DeatschWerks 04-06 STi / 04-06 Legacy GT EJ25 850cc Side Feed Injectors *DOES NOT FIT OTHER YEARS*
$689.54
DeatschWerks
Part # 6-101-1000
DeatschWerks 04-06 Subaru STI/LGT Side Feed to Top Feed Fuel Rail Conv Kit w/ 1000cc Injectors
$641.34
Fluids & Additives
(148)consumable
aFe
Part # 44-LF017-MB
aFe Pro GUARD D2 Oil Filter 02-17 Nissan Cars L4/ 04-17 Subaru Cars H4 (4 Pack)
$67.61
aFe
Part # 44-LF018-MB
aFe Pro GUARD D2 Oil Filter 13-17 Scion FR-S / Subaru BRZ H4-2.0L (4 Pack)
$67.61
aFe
Part # 44-LF017
aFe ProGuard D2 Fluid Filters Fuel F/F Oil; Nissan Cars 03-13; Subaru Cars H4 04-13
$20.38
aFe
Part # 44-LF018
aFe ProGuard D2 Oil Filter Scion FR-S/Subaru BRZ
$20.86
Bosch
Part # 3974
Bosch Oil Filter
$16.83
DJ Rock
Part # OP706
Engine Cylinder Block Lubricating Oil Pump Assembly
$172.66
Standard Motor Products
Part # OCK50
ENGINE OIL COOLER
$433.04
Hayden
Part # 293
Engine Oil Cooler Metal Line Kit
$48.06
Tune-Up for Other Subaru Legacy Years
Other Jobs for Your 2004 Subaru Legacy
Frequently Asked Questions
What parts do I need for a tune-up on my 2004 Subaru Legacy?
A complete tune-up on the 2004 Subaru Legacy 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 2004 Subaru Legacy?
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 2004 Subaru Legacy?
These parts are listed for the 2004 Subaru Legacy 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 2004 Subaru Legacy?
We carry tune-up parts from trusted brands including aFe, Denso, Beck Arnley, Hengst, and Corteco. Filter by brand to find your preferred manufacturer.
How much does a tune-up cost for a 2004 Subaru Legacy?
The cost of a tune-up for the 2004 Subaru Legacy 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.