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.
A1 REMFG INC
NEW CV DRIVE AXLES
Sherman Parts
RADIATOR SUPPORT SDN/WAGON AUDI A4/S4 0916; A5 QUATTRO/S5 0817
Sherman Parts
REAR BUMPER COVER; SEDAN; W/O SLINE PKG; W/PARKING AID SENSORS; PRIME; A4 1316
Sherman Parts
CAPA FRONT BUMPER REINFORCEMENT SEDAN AUDI A4 1316

TYC
ALTERNATOR AUDI A4 L4 2.0L 1316
A1 REMFG INC
CV DRIVE AXLE
Scat
AUDI/VW PRO SPORT H-BEAM
Sherman Parts
FRONT BUMPER COVER W/SLINE PKG; W/HEADLAMP WASHER; W/O WARNING SYSTEM; PRIME AUDI A4/S4 1316

TYC
STARTER MOTOR AUDI A4 2.0L L4 0916
Samco
Samco Audi A4 1800 Turbo B5 AEB/ATW/AWM/AVJ (1) Induction Hose (LIGHTNINGBLUECAMO)

Sherman Parts
REAR BUMPER COVER; SEDAN; W/O SLINE PKG; W/O PARKING AID SENSORS; PRIME; A4 1316

Samco
Samco Audi A4 1800 Turbo B5 AEB/ATW/AWM/AVJ (1) Induction Hose (BLUE)
Sherman Parts
FRONT BUMPER COVER W/O SLINE PKG; W/HEADLAMP WASHER; W/O WARNING SYSTEM; PRIME AUDI A4 20132016
Sherman Parts
CAPA RR BUMPER REINFORCEMENT SEDAN/WAGON AUDI A4 0916
Sherman Parts
HOOD PANEL ASSY AUDI A4 SDN/WAGON 0912
Sherman Parts
CAPA RR BUMPER COVER SEDAN; W/O SLINE PKG; W/O PARKING AID; PRIME AUDI A4 0912 CA

TYC
1720 AD A.4 5MM w/ R/D COND (PFC)

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

TYC
CAPA LH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019
Sherman Parts
CAPA RR BUMPER CVR W/SLINE PKG;W/O PARALLEL PARK ASSIST;W/PARKING AID; PRIME AUDI A4/S4 1719

TYC
RH HEADLAMP ASSY COMPOSITE LED AUDI A4 20172019

Sherman Parts
CAPA HOOD PANEL ASSY LATE DESIGN; STEEL AUDI A4 0205
TYC
CAPA RH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019
A1 REMFG INC
FRICTION CHOICE CALIPERS

TYC
RH HEADLAMP ASSY COMPOSITE HID AUDI A4 20172019

Sherman Parts
CAPA RT FRT FENDER ASSY AUDI A4/S4 0918 SEDAN/WAGON
A1 REMFG INC
TURBO CHARGERS
TYC
LH HEADLAMP ASSY COMPOSITE LED AUDI A4 20172019

A1 REMFG INC
TURBO CHARGERS

Dana
ENGINE VALVE COVER GASKET SET
A1 REMFG INC
IMPORT POWER BOOSTER
TYC
1720 AD A.4/S.4 SDN L4 2.0T (6SC) ALTERNATOR
Sherman Parts
CAPA RR BUMPER COVER SEDAN; W/O SLINE PKG; W/O PARKING AID SENSORS; PRIME AUDI A4
Sherman Parts
LH FRONT FENDER ASSY STEEL AUDI A4 0912;AUDI S4 1012
Sherman Parts
HOOD PANEL ASSY FROM VIN X0001 AUDI A4 0001;AUDI S4 9902
Sherman Parts
HOOD AUDI A4 SDN/WGN 0205; S4 0305

Sherman Parts
FRONT BUMPER COVER MATTEBLACK TOYOTA TERCEL 9597
Samco
Samco Audi A4 1800 Turbo FWD (2001) Man Trans AWM B5 US Spec (4) Turbo Kit (YELLOW)

Samco
Samco Audi A4 Turbo B6 AVJ/AMB/BFB (3) Turbo Kit (GUNMETALGREY)

Samco
Samco Audi A4 Turbo B6 AVJ/AMB/BFB (3) Turbo Kit (URBANCAMO)
TYC
1718 AD A.4 PWR HT W/ SIG W/ SIDE A. PTM MIR LH

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

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

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

Scat
AUDI/VW PRO SPORT HBEAM CONNECTING RODS ARP 2000 3/8IN CAP SCREWS 6.457 ROD LENGTH 2.125 CRANK PIN
Sherman Parts
CAPA FRT BUMPER CVR W/O SLINE PKG;W/O H/L WASHER&PARALLEL PARK;W/PARK AID; PRIME AUDI A4 1719
Sherman Parts
REAR BUMPER REINFORCEMENT W/SLINE PKG AUDI A4 1721
TYC
1720 AD A4/1618 A7 2.0L COMPRESSOR
Sherman Parts
CAPA RT FRT FENDER ASSY AUDI A4 A4 QUATTRO S4 2021

Sherman Parts
CAPA RR BUMPER COVER W/O PARALLEL PARK ASSIST; W/O PARKING AID; PRIME AUDI A4/S4 1719
Sherman Parts
CAPA LOWER ENGINE COVER SOUND BAFFLE AUDI A4 1720

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

TYC
9805 VW PASAT 1.8/2.0L L4 A/MT 1R PA RAD
Sherman Parts
GRILLE ASSY W/O SLINE PKG; W/PARKING AID AUDI A4 1719
Sherman Parts
CAPA RADIATOR SUPPORT AUDI A4 1719

TYC
CAPA 1719 AD A.4/S.4 LED HEADLIGHT ASSY RH
TYC
21C AD A4/A5/Q5 2.0L 3.0L COMPRESSOR

Sherman Parts
CAPA LT FRONT FENDER ASSY STEEL AUDI A4 0912
Sherman Parts
CAPA HOOD PANEL ASSY SEDAN/WAGON AUDI A4 0912

Sherman Parts
CAPA FRT BUMPER GRILLE W/SLINE PKG AUDI A4 1316
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