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Audi A4 Most Popular Parts

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ES#2777024 - 06B121111KKT3 -  Thermostat Replacement Kit With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-Plug, a new thermostat, o-ring, and hardware - Assembled By ECS - Audi

Includes ECS' upgraded J-Plug, a new thermostat, o-ring, and hardware 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2777024
Mfg#:
06B121111KKT3
In Stock
$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3570137 - MS100176 - APR Lug Bolts (Set of 10) - 40mm - Black zinc coated 40mm ball set wheel bolts to be used with 12mm wheel spacers - APR - Audi Volkswagen

Black zinc coated 40mm ball set wheel bolts to be used with 12mm wheel spacers Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3570137
Mfg#:
MS100176
In Stock
12% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$66.95

This product was last offered at the strikethrough price on
11-06-2026

$58.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4758656 - 06H103483C - Upper Timing Cover Gasket - For cover on the front of the engine - Bremmen Parts - Audi Volkswagen

For cover on the front of the engine 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4758656
Mfg#:
06H103483C
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3072342 - 8E0407271AT - Front Axle Assembly - Left  - Complete driveshaft with CV joints; ready for installation - GKN Drivetech - Audi

Complete driveshaft with CV joints; ready for installation Fits from VIN 8E-3-390,000 - Split is in the 2003 model year

Brand:
GKN Drivetech - Corporate Logo
ES#:
3072342
Mfg#:
8E0407271AT
In Stock
$655.92

This product was last offered at the strikethrough price on
07-09-2026

$580.42 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#520874 - DP41513R -  Front YellowStuff Performance Front Brake Pad Set - EBC's premium sport street pad that offers high friction levels and heat fade resistance - EBC - Audi

EBC's premium sport street pad that offers high friction levels and heat fade resistance 2X Entries Into Our F80 M3 Sweepstakes
For use with the Stage 3 Audi RS Big Brake Kit

Brand:
EBC - Corporate Logo
ES#:
520874
Mfg#:
DP41513R
In Stock
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$374.99

This product was last offered at the strikethrough price on
11-06-2026

$355.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4750173 - 06L103598R - Oil Pan - Lower - Keep the engine oil where it belongs - Bapmic - Audi

Keep the engine oil where it belongs

Brand:
Bapmic - Corporate Logo
ES#:
4750173
Mfg#:
06L103598R
Back Ordered
$355.99 USD
Free Shipping
on orders $49 and up
ES#4017429 - 019216ECS02 - Silicone Turbo Inlet Hose - Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability! - ECS - Audi

Flexible silicone smooths the intake tract & provides unimpeded airflow. The ultimate in looks and durability! 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Does not fit models equipped with a MAF sensor (DBPA or DPAA engine codes) - Please verify prior to order

Brand:
ECS - Corporate Logo
ES#:
4017429
Mfg#:
019216ECS02
In Stock
$96.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3086056 - 003675ecs01a1KT - Luft-Technik Air Filter - Replacement air filter for Luft-Technik intake systems - ECS - Audi Volkswagen

Replacement air filter for Luft-Technik intake systems 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3086056
Mfg#:
003675ECS01A1KT
In Stock
$88.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4488077 - 021275ECS01 - Audi B9 A4 2.0T Valved Exhaust System - Cat Back  - Max gains of +16 WHP and +17 WTQ on our B9 A4 equipped with a Luft-Technik intake, ECS Intercooler/charge pipes, and a stage 1 tune! - ECS - Audi

Max gains of +16 WHP and +17 WTQ on our B9 A4 equipped with a Luft-Technik intake, ECS Intercooler/charge pipes, and a stage 1 tune! 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE
For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
4488077
Mfg#:
021275ECS01
Ships on Dec 29, 2026
Starting at $1199.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3439034 - molygenKT7 - Liqui Moly MolyGen - Premium Oil Service Kit - With ECS Magnetic Drain Plug - Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology - Assembled By ECS - Audi

Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3439034
Mfg#:
MOLYGENKT7
In Stock
$138.99

This product was last offered at the strikethrough price on
08-31-2026

$134.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#3639653 - 06f127025kkKT5 - Fuel Pump & Follower Replacement Kit - Replacement cam follower, high pressure fuel pump, hardware, and necessary fittings/adapters for vehicles with banjo style fuel line - Assembled By ECS - Audi

Replacement cam follower, high pressure fuel pump, hardware, and necessary fittings/adapters for vehicles with banjo style fuel line 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
For earlier models (up to VIN 8E-6-266700) with existing banjo style fuel line and fitting

Brand:
Assembled By ECS - Corporate Logo
ES#:
3639653
Mfg#:
06F127025KKKT5
Ships in 3 Business Days
$636.99

This product was last offered at the strikethrough price on
07-02-2026

$416.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5444735 - 0346040001bz2KT - 18" ZTF-R01 Forged Wheels - Set Of Four - 18"x8.5" ET45 CB57.1/66.6mm 5x112 - Bronze - 034Motorsport - Audi BMW Volkswagen

18"x8.5" ET45 CB57.1/66.6mm 5x112 - Bronze 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
5444735
Mfg#:
0346040001BZ2KT
Back Ordered
$2300.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#550 - AF G001200 - G12+ Coolant - 1.5 Liter - Pink Pentosin SF Pentofrost coolant new updated G12 plus formula - Pentosin - Audi Volkswagen Porsche

Pink Pentosin SF Pentofrost coolant new updated G12 plus formula

Brand:
Pentosin - Corporate Logo
ES#:
550
Mfg#:
AF G001200
In Stock
$25.27 USD
Free Shipping
on orders $49 and up
ES#3647521 - ST-AEVI-1103KT - Supertech Inconel Exhaust Valve Kit - Stock sized valve head diameter, factory triple groove keeper setup - Includes Supertech valves and IE valve seals - Assembled By ECS - Audi Volkswagen

Stock sized valve head diameter, factory triple groove keeper setup - Includes Supertech valves and IE valve seals 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
*Existing factory triple-groove valve keepers are to be reused*

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647521
Mfg#:
ST-AEVI-1103KT
In Stock
$382.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3659544 - EUR1663 - Front Euro Ceramic Brake Pad Set - Offers excellent pedal feedback, low dust, and smooth initial bite. A favorite among enthusiasts. - Akebono - Audi

Offers excellent pedal feedback, low dust, and smooth initial bite. A favorite among enthusiasts. For use with the Stage 2 Big Brake Kit

Brand:
Akebono - Corporate Logo
ES#:
3659544
Mfg#:
EUR1663
In Stock
$111.90

This product was last offered at the strikethrough price on
05-13-2026

$101.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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