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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Sherman Parts

HOOD PANEL ASSY AUDI A4 SDN/WAGON 0912

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Sherman Parts

CAPA RR BUMPER COVER SEDAN; W/O SLINE PKG; W/O PARKING AID; PRIME AUDI A4 0912 CA

TYC headlights

TYC

CAPA 1719 AD A.4/S.4 LED HEADLIGHT ASSY LH

TYC auto part

TYC

CAPA LH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

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Sherman Parts

CAPA RR BUMPER CVR W/SLINE PKG;W/O PARALLEL PARK ASSIST;W/PARKING AID; PRIME AUDI A4/S4 1719

TYC auto part

TYC

RH HEADLAMP ASSY COMPOSITE LED AUDI A4 20172019

Sherman Parts auto part

Sherman Parts

CAPA HOOD PANEL ASSY LATE DESIGN; STEEL AUDI A4 0205

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TYC

CAPA RH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

A

A1 REMFG INC

FRICTION CHOICE CALIPERS

TYC auto part

TYC

RH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

CAPA RT FRT FENDER ASSY AUDI A4/S4 0918 SEDAN/WAGON

Sherman Parts

CAPA RT FRT FENDER ASSY AUDI A4/S4 0918 SEDAN/WAGON

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TYC

LH HEADLAMP ASSY COMPOSITE LED AUDI A4 20172019

ENGINE VALVE COVER GASKET SET

Dana

ENGINE VALVE COVER GASKET SET

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Sherman Parts

CAPA RR BUMPER COVER SEDAN; W/O SLINE PKG; W/O PARKING AID SENSORS; PRIME AUDI A4

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Sherman Parts

LH FRONT FENDER ASSY STEEL AUDI A4 0912;AUDI S4 1012

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Sherman Parts

HOOD PANEL ASSY FROM VIN X0001 AUDI A4 0001;AUDI S4 9902

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Sherman Parts

HOOD AUDI A4 SDN/WGN 0205; S4 0305

FRONT BUMPER COVER MATTEBLACK TOYOTA TERCEL 9597

Sherman Parts

FRONT BUMPER COVER MATTEBLACK TOYOTA TERCEL 9597

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TYC

1718 AD A.4 PWR HT W/ SIG W/ SIDE A. PTM MIR LH

1718 AD A.4 PWR HT W/ SIG PTM MIR LH

TYC

1718 AD A.4 PWR HT W/ SIG PTM MIR LH

TYC auto part

TYC

CAPA 1316 AD A4 W/O CURVE LIGHT HID HEADLAMP ASSY RH

CAPA LT FRT FENDER ASSY AUDI A4/S4 0918 SEDAN/WAGON

Sherman Parts

CAPA LT FRT FENDER ASSY AUDI A4/S4 0918 SEDAN/WAGON

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Sherman Parts

CAPA FRT BUMPER CVR W/O SLINE PKG;W/O H/L WASHER&PARALLEL PARK;W/PARK AID; PRIME AUDI A4 1719

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Sherman Parts

REAR BUMPER REINFORCEMENT W/SLINE PKG AUDI A4 1721

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Sherman Parts

CAPA RT FRT FENDER ASSY AUDI A4 A4 QUATTRO S4 2021

Sherman Parts bumper

Sherman Parts

CAPA RR BUMPER COVER W/O PARALLEL PARK ASSIST; W/O PARKING AID; PRIME AUDI A4/S4 1719

Sherman Parts bumper

Sherman Parts

FRONT BUMPER COVER F25; W/O M PKG; W/HEADLAMP WASHER; PRIME BMW X3 1114

TYC headlights

TYC

CAPA 1719 AD A.4/S.4 LED HEADLIGHT ASSY RH

Sherman Parts auto part

Sherman Parts

CAPA LT FRONT FENDER ASSY STEEL AUDI A4 0912

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Sherman Parts

CAPA HOOD PANEL ASSY SEDAN/WAGON AUDI A4 0912

CAPA FRT BUMPER GRILLE W/SLINE PKG AUDI A4 1316

Sherman Parts

CAPA FRT BUMPER GRILLE W/SLINE PKG AUDI A4 1316

CAPA LH RR BUMPER BRACKET; SEDAN/WAGON; A4 0916; S4 1016

Sherman Parts

CAPA LH RR BUMPER BRACKET; SEDAN/WAGON; A4 0916; S4 1016

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Sherman Parts

FRONT BUMPER AIR SHIELD LOWER W/O SLINE PKG AUDI A4 0912

S

Sherman Parts

CAPA HOOD PANEL ASSY GEN 3; STEEL AUDI A4 0508

CYLINDER HEAD GASKET

Dana

CYLINDER HEAD GASKET

ENGINE CRANKSHAFT SEAL

Dana

ENGINE CRANKSHAFT SEAL

AUDI A4/A6/A8 96-99 A4 01

Metra Electronics

AUDI A4/A6/A8 96-99 A4 01

Regionmax auto part

Regionmax

LH HEADLAMP ASSY COMPOSITE W/HALOGEN AUDI A4 0508

LH HEADLAMP ASSY COMPOSITE; 4DR SDN/4DR WGN; HALOGEN; A4 0205

Regionmax

LH HEADLAMP ASSY COMPOSITE; 4DR SDN/4DR WGN; HALOGEN; A4 0205

ENGINE CRANKSHAFT SEAL

Dana

ENGINE CRANKSHAFT SEAL

C

Covercraft

CARGO LINER CARHARTT AUDI A4

CARGO LINER CARHARTT AUDI A4

Covercraft

CARGO LINER CARHARTT AUDI A4

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Dana

GASKET, CYLINDER HEAD

ENGINE CRANKSHAFT SEAL

Dana

ENGINE CRANKSHAFT SEAL

Morimoto Lighting auto part

Morimoto Lighting

D2S: OSRAM 66240XN2 (4200K / SET)

Morimoto Lighting auto part

Morimoto Lighting

2014-2021 TUNDRA STAGE 3 MORIMOTO X

BRAKE CALIPER

Raybestos Brakes

BRAKE CALIPER

RH TAILLAMP ASSY OUTER; SEDAN; LED TYPE; A4 0912

Regionmax

RH TAILLAMP ASSY OUTER; SEDAN; LED TYPE; A4 0912

DISC BRAKE ROTR ONLY

Raybestos Brakes

DISC BRAKE ROTR ONLY

BRAKE ROTOR

Raybestos Brakes

BRAKE ROTOR

Regionmax auto part

Regionmax

RH HEADLAMP ASSY COMPOSITE W/HALOGEN AUDI A4 0508

C

Covercraft

CARGO LINER CARHARTT AUDI A4

C

Covercraft

CARGO LINER CARHARTT AUDI A4

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Dana

ENGINE CONVERSION GASKET SET

D

Dana

CONVERSION GASKET ST

HEAD GASKET SET

Dana

HEAD GASKET SET

Dana auto part

Dana

ENGINE CONVERSION GASKET SET

HEAD GASKET SET

Dana

HEAD GASKET SET

HEAD GASKET SET

Dana

HEAD GASKET SET

Dorman auto part

Dorman

DOOR LOCK ACTUATOR

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