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 Parts

8164 parts available

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

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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

C

Clevite

INTAKE VALVE

BRAKE PAD SENSOR WIRES

Stoptech

BRAKE PAD SENSOR WIRES

Mahle Oil Filter Audi Allroad 4.2l 2003-2005 A8 S8 4.2l 5.2l 2004 - 2005

Mahle

Mahle Oil Filter Audi Allroad 4.2l 2003-2005 A8 S8 4.2l 5.2l 2004 - 2005

Audi 2.0L Turbo DOHC A3 A4 Quattro TT Quattro 2009

Mahle

Audi 2.0L Turbo DOHC A3 A4 Quattro TT Quattro 2009

AUDI / VOLKSWAGEN 1984CC 2.0L BPGBPYBWTCDMA 20052014 TIMING COVER SET

Clevite

AUDI / VOLKSWAGEN 1984CC 2.0L BPGBPYBWTCDMA 20052014 TIMING COVER SET

BEHR Engine Coolant Thermostat

Mahle

BEHR Engine Coolant Thermostat

CONTROL ARM

Dorman

CONTROL ARM

BEHR ThermostatInsert VW 2.8L AHA ATQ

Mahle

BEHR ThermostatInsert VW 2.8L AHA ATQ

T

Torque Solution

Torque Solution Thermal Throttle Body Gasket: Audi A4 Quattro 1997-2001

OIL DRAIN PLUG M14-1.50

Dorman

OIL DRAIN PLUG M14-1.50

B

Bosch

GASOLINE INJECTOR

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)

ACL Bearings VW 4 1595-1781-1984cc 1983 on STD

ACL

ACL Bearings VW 4 1595-1781-1984cc 1983 on STD

DISC BRAKE ROTOR

Bosch

DISC BRAKE ROTOR

TURBOCHARGER MOUNTING GASKET SET

Clevite

TURBOCHARGER MOUNTING GASKET SET

D

Dorman

FLUID RESERVOIR

M

Mahle

AUDI 3.2L BKH 2005-2009

M

Mahle

~(0 lbs. 96X4X4)~ Turbo Oil Drain AUDI / VOLKSWAGEN 1781CC 1.8L 2671CC 2.7L 1999-2006

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

M

Mahle

~(0.1 lbs. 13X9X0)~ 2002-1998 VW 5 Speed Rear Cover Passat and A4

C

Clevite

AUDI / VOLKSWAGEN 2771CC 2.8L AHA 19971999 EXHAUST MANIFOLD SET

AUDI / VOLKSWAGEN 2.7L 2.8L 20002005 TIMING COVER SET

Clevite

AUDI / VOLKSWAGEN 2.7L 2.8L 20002005 TIMING COVER SET

AIR FILTER ELEMENT

Mahle

AIR FILTER ELEMENT

DISC BRAKE ROTOR

Hella

DISC BRAKE ROTOR

Exhaust Pipe Flange Gasket - 71-15600-00

Victor Reinz

Exhaust Pipe Flange Gasket - 71-15600-00

C

Clevite

VW 1984CC 2.0L TURBO L4 BPY 20062007 VALVE COVER GASKET

S

SPYDER

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

Stoptech auto part

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/

OILPRESSURE SWITCH

Hella

OILPRESSURE SWITCH

OIL PRESSURE SWITCH

Hella

OIL PRESSURE SWITCH

C

Clevite

THERMOSTAT HOUSING GSKT.

SWITCH TOGGLE

Bosch

SWITCH TOGGLE

PRESSURE SENSOR

Bosch

PRESSURE SENSOR

LAMBDA PROBE

Hella

LAMBDA PROBE

M

Mahle

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

Audi VW Applications W ZF 5HP19FL Transmission

Mahle

Audi VW Applications W ZF 5HP19FL Transmission

CABIN AIR FILTER

Bosch

CABIN AIR FILTER

BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

AUDI 3.2L DOHC 24V BKH 2005-2006

Mahle

AUDI 3.2L DOHC 24V BKH 2005-2006

M

Mahle

AUDI/VW 1.8L AND 2.0L 2013-2018 TURBOCHARGED Thermostat Housing Gasket

~(0.2 lbs. 16X6X0)~ Intake Manifold Gasket 13-17 Audi/VW 1.8L/2.0L

Mahle

~(0.2 lbs. 16X6X0)~ Intake Manifold Gasket 13-17 Audi/VW 1.8L/2.0L

C

Clevite

AUDI 3123CC 3.2L BKH 20052009 VALVE COVER GASKET (RIGHT)

HVAC Pressure Switch

Mahle

HVAC Pressure Switch

CRANKSHAFT SENSOR

Hella

CRANKSHAFT SENSOR

LAMBDA SENSOR 6PA

Hella

LAMBDA SENSOR 6PA

Engine Cylinder Head Gasket - 61-33120-40

Victor Reinz

Engine Cylinder Head Gasket - 61-33120-40

SENDER UNIT INTAKE AIR TEMPERATURE

Hella

SENDER UNIT INTAKE AIR TEMPERATURE

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

Flange Gasket - 76-09 Audi Pontiac VW Volvo

Magnaflow

Flange Gasket - 76-09 Audi Pontiac VW Volvo

B

Bosch

DISC BRAKE PADS

AUDI VOLKSWAGEN 2771CC 2.8L AHA 1997-1999

Mahle

AUDI VOLKSWAGEN 2771CC 2.8L AHA 1997-1999

C

Clevite

EXHAUST VALVE

GCX ROTOR WITH FULL COATING AND HIG

Stoptech

GCX ROTOR WITH FULL COATING AND HIG

TPMS VALVE CORE KIT

Dorman

TPMS VALVE CORE KIT

C

Clevite

AUDI 3.2L DOHC 24V BKH 20052006 WATER OUTLET GASKET

~(1 lbs. 8X8X4)~ AUDI / VW 3.0L 3.2L DOHC 24V 2005-2012

Mahle

~(1 lbs. 8X8X4)~ AUDI / VW 3.0L 3.2L DOHC 24V 2005-2012

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