QUATTRO MEETS PRACTICALITY
B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.
Audi A4 HERITAGE
THE QUATTRO COMPACT
MOTORMIA A4 builds span B5 1.8T stage-3 tuners, B7 RS4 V8 swap projects, B8/B9 ECU-tuned dailies, and the S4 supercharged V6 generation. Many parts cross-fit with VW MK6/MK7 platforms.
Audi A4 ON MOTORMIA
THE NUMBERS
CATEGORIES
Top product categories for the Audi A4
BRANDS
Top brands for Audi A4 builds
READY TO BUILD YOUR AUDI A4?
Pick your year and trim to shop verified-fit Audi A4 parts.
Shop all Audi A4 parts →Verified Fitment
Audi A4 Parts
8164 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

Mahle
AUDI VOLKSWAGEN MULTIPLE APPLICATIONS 1996-2013

Mahle
~(0.1 lbs. 9X7X0)~ 2000-2006 VW/AUDI 1.8L

Clevite
AUDI VW APPLICATIONS W/ ZF 5HP19FL TRANSMISSION MAHLE OIL FILTER

Bosch
WIPER BLADE

Victor Reinz
Engine Crankshaft Seal - 81-35553-00

Mahle
~(0.2 lbs. 16X6X0)~ VW-PASS 1.8L 20VALVE DOHC TURBO 1998-2003

Bosch
DISC BRAKE PADS

Clevite
VACUUM PUMP GASKET

Bosch
OIL FILTER

Dorman
CONTROL ARM

Mahle
Audi Volkswagen 1984cc 2.0L Gasoline Turbocharged 2008-2014
Dorman
CONTROL ARM

Clevite
AUDI / VOLKSWAGEN 1781CC 1.8L 2671CC 2.7L 19992006 TURBO OIL DRAIN

Mahle
Valve Cover Gasket (Left) AUDI 2995CC 3.0L 3123CC 3.2L 2008-

Victor Reinz
Engine Intake Manifold Gasket - 71-40998-00

Bosch
CABIN AIR FILTER

Hella
WHEEL SPEED-SENSOR

Bosch
DISC BRAKE PADS

Gates
Gates Engine Coolant Water Outlet
Mahle
Mahle Oil Filter Audi A3 A4 TT 2.0L gas Turbo 2005-2009 VW 2.0L Gas Turbo 2.5L FI 2005-
Stoptech
STANDARD CONTROL ARM & BALL JOINT

Hella
DISC BRAKE ROTOR
Victor Reinz
Engine Intake Manifold Gasket - 71-40507-00
Clevite
VOLKSWAGEN TRANSPORTER 4 CIL. 2.0L TDI 2010> VW AMAROK 4 CIL. 2.0L TDI MAHLE

Stoptech
PREMIUM CLUTCH SLAVE CYLINDER
Mahle
Audi Volkswage 1984cc 2.0L CBFA CCTA CHJA CPMA 2008-2014
Mahle
Volkswagen ABA SOHC 2.0L 1994-1999

Mahle
Volkswagen Audi 1984CC 2.0L CCTA CBFA CAED 2008-2014
Bosch
DISC BRAKE ROTOR

NGK
ENGINE CAMSHAFT POSITION SENSOR
Bosch
DISC BRAKE PADS
Hella
WATER PUMP WINDOW CLE... FOR VW/SE

Bosch
WHEEL SPEED SENSOR

Bosch
WHEEL SPEED SENSOR
Bosch
DISC BRAKE PADS

Bosch
OIL FILTER

Stoptech
PREMIUM CONTROL ARM AND BALL JOINT

Victor Reinz
Engine Valve Cover Gasket - 71-36046-00
Bosch
WIPER BLADE

Victor Reinz
Engine Intake Manifold Gasket Set - 71-31986-00

Victor Reinz
Engine Intake Manifold Gasket - 71-31801-00

Clevite
GASKETS

Mahle
Valve Cover Gasket (Right) AUDI 2995CC 3.0L 3123CC 3.2L 2008-

Mahle
Timing Cover Gasket 14-18 Audi/VW 1.8L and 2.0L

Mahle
Audi Volkswagen 1984cc 2.0L Camshaft Adjuster Magnet Seal
Victor Reinz
Fuel Injection Throttle Body Mounting Gasket - 71-16550-00

Victor Reinz
Engine Cylinder Head Gasket - 61-37475-00

Victor Reinz
Engine Cylinder Head Gasket - 61-31705-00

3D MAXpider
3D CLASSIC FLOOR MAT 2ND ROW BLACK
Mahle
~(0.1 lbs. 3X3X1)~ Audi:5000 GasandDiesel(78-84)VWVolvo:D24 Eng.(80-86)TIMING COVER

Victor Reinz
Exhaust Pipe Flange Gasket - 71-33841-00
Stoptech
PREMIUM RACK BELLOWS KIT

3D MAXpider
3D KAGU FLOOR MAT 2ND ROW TAN
Stoptech
STANDARD CONTROL ARM & BALL JOINT

NGK
ENGINE CAMSHAFT POSITION SENSOR

Dorman
CONTROL ARM

Hella
WARNING CONTACT BRAKE PAD WEAR
Victor Reinz
Engine Crankshaft Seal - 81-19299-10
Clevite
EXPANSION TANK

Bosch
COMPRESSION SPRING
FAQ
Frequently Asked Questions About the Audi A4
What are the best aftermarket parts brands for the Audi A4?
The top brands MOTORMIA owners trust for Audi A4 builds are EBC, PowerStop, H&R, Bilstein, and Magnaflow. The catalog carries 3,135 parts that fit the A4. Use the fitment selector to filter to your specific year and trim, then browse by category or brand.
What's the best trim or sub-model of the Audi A4 to modify?
The most-modified A4 trims are S4 (especially B5 / B7 / B8 / B9 supercharged). These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the A4's engine family (1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)) shares aftermarket across most trims, so base-trim builds with the right bolt-ons can match higher trims on power.
What's the typical mod path for a Audi A4?
For most Audi A4 builds, the recommended modification order is: ECU tune → intake → downpipe → suspension → turbo upgrade. This sequence stages upgrades so each mod supports the next — tuning unlocks gains from intake/exhaust, suspension keeps the added power planted. MOTORMIA member builds let you see exact part lists for Audi A4 builds at every power level.
How does the Audi A4 aftermarket compare to the BMW 3 Series?
The Audi A4 is the Quattro AWD compact sedan with the EA888 2.0T platform shared across Audi/VW. On MOTORMIA, 3,135 parts fit the A4 across 3,000+ active member builds, with an average part MSRP of $711. The decision usually comes down to which platform you own — both have full bolt-on catalogs.
Will any Audi A4 part fit my year and trim?
Not always. The Audi A4 has had multiple generations and engine changes (e.g., 1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)), and parts are generation- and trim-specific. MOTORMIA's catalog uses verified fitment data — every product page shows exactly which years and submodels of the A4 a part fits. Use the fitment selector at the top of any page to pre-filter to your build.
Does MOTORMIA offer returns on Audi A4 parts?
Yes. Most Audi A4 parts on MOTORMIA are eligible for our 30-day return policy provided they're unused, uninstalled, and in original packaging. Special-order parts are flagged with a "Special Order" badge on the product page. Manufacturer warranties are processed through MOTORMIA on your behalf.
MOTORMIA APP
Build your Audi A4 with Mia
Personalized Audi A4 mod recommendations, verified fitment from real A4 owners, and a garage that tracks every part on your build.
- Mod recommendations tuned to your A4 year, trim, and submodel
- Verified fitment data from 3,000+ Audi A4 member builds
- Performance gain estimates based on real-world results
- Save your garage and track every part you've installed