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 engines and components Parts
763 parts available
Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

Hella
CAMSHAFT POSITION-SENSOR

Mahle
Valve Cover Gasket (Right) AUDI 3123CC 3.2L BKH 2005-2009

Mahle
General Gasket Set 07-15 Audi/VW 2.0L Turbocharged

Mahle
Valve Cover Set AUDI 2976CC 3.0L AVK BGN 2002-2006
Clevite
AUDI:9090 QUATTRO100100 QUATTROW/2771CCAAHV6 ENG.(9295)VALVE COVER VALVE
Mahle
Audi/VW 2.0L 2010-2018 RANKCASE SEPARATOR

Mahle
AUDI 3123cc 3.2L BKH 2005-2009
Mahle
Sleeve Assembly Ring Set PISTON RING SET-LV-Piston Ring Set-PISTON RING SET

Mahle
Audi Volkswagen 1984cc 2.0L Gasoline Turbocharged 2008-2014
Clevite
AUDI (7106) VOLKSWAGEN (9609) MAHLE OIL FILTER

Dorman
BREATHER HOSE
Mahle
AUDI 2.8L 3.0L3.2L 2008-2012
Mahle
Sleeve Assembly Ring Set VW Ring Set 2.0L A3 TT Beetle CC EOS Golf Eng. Code CAWB CBFA
Clevite
VALVE COVER SET
Clevite
AUDI 2995CC 3.0L 3123CC 3.2L 2008 VALVE COVER GASKET (RIGHT)
Clevite
VWPASS 1.8L 20VALVE DOHC TURBO 19982003 INTAKE MANIFOLD GASKET

Mahle
AUDI 1.8L 1781CC 1997-2006 ATW AWM BEA AMB
Clevite
CONNECTING ROD BEARING SE
Clevite
VOLKSWAGEN 1588CC 1780CC 1781CC 1984CC ENGINES CONNECTING ROD BEARING SET

Clevite
VACUUM PUMP GASKET

Bosch
OIL FILTER

Mahle
Audi Volkswagen 1984cc 2.0L Gasoline Turbocharged 2008-2014

Mahle
Valve Cover Gasket (Left) AUDI 2995CC 3.0L 3123CC 3.2L 2008-
Mahle
Mahle Oil Filter Audi A3 A4 TT 2.0L gas Turbo 2005-2009 VW 2.0L Gas Turbo 2.5L FI 2005-
Clevite
VOLKSWAGEN TRANSPORTER 4 CIL. 2.0L TDI 2010> VW AMAROK 4 CIL. 2.0L TDI MAHLE
Mahle
Volkswagen ABA SOHC 2.0L 1994-1999

Bosch
OIL FILTER

Clevite
GASKETS

Mahle
Valve Cover Gasket (Right) AUDI 2995CC 3.0L 3123CC 3.2L 2008-

Mahle
Timing Cover Gasket 14-18 Audi/VW 1.8L and 2.0L
Mahle
~(0.1 lbs. 3X3X1)~ Audi:5000 GasandDiesel(78-84)VWVolvo:D24 Eng.(80-86)TIMING COVER
Victor Reinz
Engine Crankshaft Seal - 81-19299-10

Melling
Intake Valve

Melling
Exhaust Valve

Melling
Rocker Arm

Melling
Rocker Arm

Melling
Hydraulic Lifter

Melling
Hydraulic Lifter

Supertech
Supertech Retainer Audi 2.0T FSI (for Spring SPR-A2416-BE2 Beehive)

Supertech
Supertech Steel Retainer Audi 2.0T FSI- for Spring SPR-A2416 7 Degree

King Engine Bearings
King Engine Bearings OE Replacement Bi-Metal Rod Bearings for Audi AUK. BKH, BYU

Supertech
Supertech 81mm Bore Piston Rings - 1x3.10 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

Supertech
Supertech Audi/VW 2.0TFSI Single Valve Spring - Single (Drop Ship Only)

Supertech
Supertech Toyota 4AGE 20V / VW 1.8T AEB / 2.7T APB 5V Intake Valve Spring

Supertech
Supertech 81.5mm Bore Piston Rings - 1x3.10 / 1.2x3.40 / 2.8x3.10mm High Performance Gas Nitrided

Supertech
Supertech Audi/VW 1.8T 5V Black Nitrided Intake Valve - Single (Drop Ship Only)

Supertech
Supertech Titanium Retainer for SPR-H1000 Series - Single (Drop Ship Only)

Supertech
Supertech Audi 1.8T/2.7T Manganese Bronze Intake/Exhaust Valve Guide Oversize OD 11.075mm

Supertech
Supertech VW Titanium Retainer for 8mm Valve Stem Triple Groove

Supertech
Supertech Titanium Retainer for Audi 5V Intake Spring SPR-A2095 (12)

Supertech
Supertech Audi/VW 1.8T 5V Triple Groove Black Nitride Exhaust Valve - Single (Drop Ship Only)

Supertech
Supertech Titanium Retainer for Audi R8 V8/V10 - Single (Drop Ship Only)

ARP
ARP VW 1.8L & 2.0L Water-Cooled Rod Bolt Kit (Set of 2)

King Engine Bearings
King Engine Bearings Audi A4 1.8L AEB (Size +.50 Oversized) Main Bearing Set

ACL
ACL VW 4 1780-1983cc 1983-on Engine Connecting Rod Bearing Set

ACL
ACL VW 4 1780-1983cc 1983-on Engine Connecting Rod Bearing Set

ACL
ACL 75-05 Volkswagen 1.0-1.9L Standard Size Thrust Washers
Italian RP
Italian RP - IRPR149-1

034Motorsport
VALVE SET,2.0T FSI SS INCONEL
034Motorsport
ROD BEARING SET,COATED,I4AUDI
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