QUATTRO MEETS PRACTICALITY

B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.

Audi A4 HERITAGE

THE QUATTRO COMPACT

The Audi A4 has been the German compact sport sedan since 1994. The B5 (1.8T) launched the tuner-friendly chassis, the B6/B7 added the K04 turbo upgrade culture, and the B8/B9 brought EA888 turbocharged 2.0T engines that share parts with the VW Golf R / Jetta GLI.

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

3,135
Parts that fit
3,000+
MOTORMIA Builds
EBC
#1 brand by SKUs
$711
Average MSRP

READY TO BUILD YOUR AUDI A4?

Pick your year and trim to shop verified-fit Audi A4 parts.

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Verified Fitment

Audi A4 Category exterior components Parts

2182 parts available

Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

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PRESSURE SENSOR

Dorman

PRESSURE SENSOR

ENGINE HEAD GASKET

Dana

ENGINE HEAD GASKET

TIE ROD END - OUTER

Dorman

TIE ROD END - OUTER

ENGINE HEAD GASKET

Dana

ENGINE HEAD GASKET

TRANSMISSION FILTER MIN ORDER QTY1

WIX

TRANSMISSION FILTER MIN ORDER QTY1

AUDI A4 20202020 A4 ALLROAD 20202024 A4 QUATTRO 20202024 DISC BRAKE PAD SE

Brembo

AUDI A4 20202020 A4 ALLROAD 20202024 A4 QUATTRO 20202024 DISC BRAKE PAD SE

STABILIZER BAR LINK KIT

Dorman

STABILIZER BAR LINK KIT

THERMOSTAT HOUSING

Dorman

THERMOSTAT HOUSING

THERMOSTAT HOUSING

Dorman

THERMOSTAT HOUSING

D

Dorman

STABILIZER BAR LINK

D

Dorman

STABILIZER BAR LINK KIT

AUDI A4 20172020 A4 ALLROAD 20172024 A4 QUATTRO 20172024 DISC BRAKE ROTOR

Brembo

AUDI A4 20172020 A4 ALLROAD 20172024 A4 QUATTRO 20172024 DISC BRAKE ROTOR

ANTI-LOCK BRAKE SYSTEM TONE RING

Dorman

ANTI-LOCK BRAKE SYSTEM TONE RING

DISC BRAKE ROTOR

Brembo

DISC BRAKE ROTOR

C

Cloyes Gear & Products

TIMING BELT

C

Cloyes Gear & Products

TIMING BELT

STABILIZER BAR LINK

Dorman

STABILIZER BAR LINK

STABILIZER BAR LINK KIT

Dorman

STABILIZER BAR LINK KIT

STABILIZER BAR LINK KIT

Dorman

STABILIZER BAR LINK KIT

D

Dorman

STABILIZER BAR LINK KIT

STABILIZER BAR LINK KIT

Dorman

STABILIZER BAR LINK KIT

D

Dorman

STABILIZER BAR LINK KIT

D

Dorman

STABILIZER BAR LINK

D

Dorman

STABILIZER BAR LINK KIT

D

Dorman

STABILIZER BAR LINK KIT

AUDI 2976CC 3.0L AVK BGN 20022006 CYLINDER HEAD GASKET

Clevite

AUDI 2976CC 3.0L AVK BGN 20022006 CYLINDER HEAD GASKET

B

Bosch

PIVOT 1504A HANDLE

BEHR Engine Coolant Thermostat

Mahle

BEHR Engine Coolant Thermostat

CONTROL ARM

Dorman

CONTROL ARM

Engine Connecting Rod Bearing Set 05-88 VKS 1.8L-2.0L CB-1426A(4)

Mahle

Engine Connecting Rod Bearing Set 05-88 VKS 1.8L-2.0L CB-1426A(4)

D

Dorman

FLUID RESERVOIR

AUDI 1.8L AEB 19972000 (M11 X 1.5MM X 96MM #9 TORX) CYLINDER HEAD BOLTS

Clevite

AUDI 1.8L AEB 19972000 (M11 X 1.5MM X 96MM #9 TORX) CYLINDER HEAD BOLTS

AUDI / VOLKSWAGEN 2.7L 2.8L 20002005 TIMING COVER SET

Clevite

AUDI / VOLKSWAGEN 2.7L 2.8L 20002005 TIMING COVER SET

DISC BRAKE ROTOR

Hella

DISC BRAKE ROTOR

S

SPYDER

0417 AUDI COMPLETE LICENSE PLATE BULB ASSEMBLY REPLACEMENT WHITE 5500K 1 PAIR

Stoptech PQ Pro Brake Pads Rear Audi Bentley Volkswagen A6 Quattro A8 Quattro Continental Phaet

Stoptech

Stoptech PQ Pro Brake Pads Rear Audi Bentley Volkswagen A6 Quattro A8 Quattro Continental Phaet

WATER PUMP HEADLIGHT ... FOR SEAT/

Hella

WATER PUMP HEADLIGHT ... FOR SEAT/

LAMBDA PROBE

Hella

LAMBDA PROBE

M

Mahle

~(0.8 lbs. 24X8X0)~ Cylinder Head Gasket 13-17 AUDI/VW 1.8L/2.0L CPLACPPACNTCCYFBCYNBCPKACPRACXBACXBB

BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

HVAC Pressure Switch

Mahle

HVAC Pressure Switch

LAMBDA SENSOR 6PA

Hella

LAMBDA SENSOR 6PA

DOUBLE PLATINUM

Denso

DOUBLE PLATINUM

BEHR ThermostatInsert Audi Volkswagen 2.0L 1984cc Turbocharged 2009-2014

Mahle

BEHR ThermostatInsert Audi Volkswagen 2.0L 1984cc Turbocharged 2009-2014

B

Bosch

DISC BRAKE PADS

GCX ROTOR WITH FULL COATING AND HIG

Stoptech

GCX ROTOR WITH FULL COATING AND HIG

M

Mahle

AUDI 1.8L AEB 1997-2000 (M11 X 1.5mm X 96mm #9 Torx)

BREATHER TUBE

Dorman

BREATHER TUBE

Engine Cylinder Head Gasket - 61-31875-00

Victor Reinz

Engine Cylinder Head Gasket - 61-31875-00

WATER PUMP

Hella

WATER PUMP

Stoptech PQ Pro Brake Pads Rear Alfa Romeo Audi 100 100 Quattro 164 200 200 Quattro 4000 Quatt

Stoptech

Stoptech PQ Pro Brake Pads Rear Alfa Romeo Audi 100 100 Quattro 164 200 200 Quattro 4000 Quatt

ENGINE CAMSHAFT POSITION SENSOR

NGK

ENGINE CAMSHAFT POSITION SENSOR

DISC BRAKE PADS

Bosch

DISC BRAKE PADS

CRANK CASE BREATHER

Dorman

CRANK CASE BREATHER

D

Dorman

CONTROL ARM

DISC BRAKE ROTOR

Hella

DISC BRAKE ROTOR

Engine Crankshaft Seal Kit - 81-90010-00

Victor Reinz

Engine Crankshaft Seal Kit - 81-90010-00

TURBOCHARGERS

Clevite

TURBOCHARGERS

BREATHER TUBE

Dorman

BREATHER TUBE

EXPANSION VALVE AND ORIFICE TUBE

Clevite

EXPANSION VALVE AND ORIFICE TUBE

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