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 Category gaskets and seals Parts
287 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

TIMKEN
SL260502;A/AM-SRC SEAL

Dana
VALVE COVER GASKET SET

Dana
ENGINE VALVE COVER GASKET SET

Dana
ENGINE VALVE COVER GASKET SET

Dana
ENGINE VALVE COVER GASKET SET

Dana
ENGINE CRANKSHAFT SEAL

Dana
VALVE COVER GASKET SET

Dana
ENGINE VALVE COVER GASKET SET

Dana
VACUUM PUMP GASKET
Dana
ENGINE OIL PAN GASKET

Dana
TIMING COVER GASKET SET
Dana
INTAKE MANIFOLD GASKET

Dana
OIL PAN GASKET

Dana
HEAD GASKET SET

Dana
ENGINE CYLINDER HEAD BOLT SET
Mahle
~(0.1 lbs. 13X9X0)~ 2002-1998 VW 5 Speed Rear Cover Passat and A4
Clevite
AUDI / VOLKSWAGEN 2771CC 2.8L AHA 19971999 EXHAUST MANIFOLD SET

Victor Reinz
Exhaust Pipe Flange Gasket - 71-15600-00

Mahle
Audi VW Applications W ZF 5HP19FL Transmission

Victor Reinz
Engine Cylinder Head Gasket - 61-33120-40

Mahle
Oil Pan Gasket AUDI 2771CC 2.8L SOHC 12V AFC 1995-1998

Mahle
Oil Pan Set AUDI VW 2.8L DOHC V6 30V 1997-2005
Clevite
FUEL INJECTOR O-RING KIT
Mahle
~(0.3 lbs. 23X15X0)~ 96-08 VW/Audi

Clevite
AUDI 2995CC 3.0L 3123CC 3.2L 2008 VALVE COVER GASKET (LEFT)

Victor Reinz
Engine Cylinder Head Bolt Set - 14-32166-03
Victor Reinz
Engine Coolant Thermostat Seal - 41-76367-00

Victor Reinz
Engine Crankshaft Seal - 81-23708-40

Victor Reinz
Engine Coolant Thermostat Housing Seal - 41-10434-00

Victor Reinz
Exhaust Pipe Flange Gasket - 71-40868-00

Victor Reinz
Vacuum Pump Gasket - 71-37523-00

Victor Reinz
Exhaust Pipe Flange Gasket - 71-40926-00

Victor Reinz
Engine Valve Cover Gasket - 71-36774-00

Victor Reinz
Engine Timing Cover Gasket - 71-38942-00

Victor Reinz
Engine Valve Cover Gasket - 71-40486-00

Victor Reinz
Engine Valve Cover Gasket - 71-36044-00

Victor Reinz
Engine Valve Cover Gasket Set - 71-35187-00

Victor Reinz
Exhaust Manifold Gasket - 71-31802-00

Victor Reinz
Engine Intake Manifold Gasket - 71-33215-00

Victor Reinz
Engine Water Pump Gasket - 71-38928-00

Victor Reinz
Engine Oil Pan Gasket - 71-31706-00

Victor Reinz
Engine Oil Filter Adapter Gasket - 71-37576-00

Victor Reinz
Engine Valve Cover Gasket - 71-31697-00

Victor Reinz
Engine Intake Manifold Gasket Set - 71-36072-00

Victor Reinz
Fuel Injection Plenum Gasket - 71-31702-00

Victor Reinz
Engine Intake Manifold Gasket Set - 11-37599-01

Victor Reinz
Exhaust Pipe Flange Gasket - 71-24057-20

Victor Reinz
Engine Crankshaft Seal - 81-35553-00

Victor Reinz
Engine Intake Manifold Gasket - 71-40998-00
Victor Reinz
Engine Intake Manifold Gasket - 71-40507-00

Victor Reinz
Engine Valve Cover Gasket - 71-36046-00

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

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

Victor Reinz
Engine Cylinder Head Gasket - 61-31705-00
Victor Reinz
Exhaust Pipe Flange Gasket - 71-15616-00

Victor Reinz
Engine Valve Cover Gasket - 15-31798-01

Victor Reinz
MAHLE Original Mercruiser 3.7L Push Rod Cover Set

NATIONAL
OIL SEAL
Dana
HEAD GASKET SET
Victor Reinz
Engine Cylinder Head Gasket Set - 02-37020-02
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