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Audi A4 Most Popular Parts

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Reinforced Silicone Breather Hose Kit

ES#2864539 - 034-101-3003 - Reinforced Silicone Breather Hose Kit - Upgrade from weaker rubber hoses - 034Motorsport - Audi

Upgrade from weaker rubber hoses 2X Entries Into Our F80 M3 Sweepstakes
From VIN 8E-3-500001, split is in the 2003 model year

Brand:
034Motorsport - Corporate Logo
ES#:
2864539
Mfg#:
034-101-3003
Ships in 2 Business Days
$237.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve

ES#3640284 - 06H145710J - Diverter Valve - Revised diaphragm-based diverter valve - Genuine Volkswagen Audi - Audi Volkswagen

Revised diaphragm-based diverter valve

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3640284
Mfg#:
06H145710J
Ships in 5 Business Days
7% off MSRP

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

$253.99

This product was last offered at the strikethrough price on
09-27-2026

$236.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Grille Accent Set - Audi B8.5

ES#3569526 - 018360ecs01KT - Carbon Fiber Grille Accent Set - Audi B8.5 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

Fits Facelift models with S-Line(S4) front bumpers from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3569526
Mfg#:
018360ECS01KT
In Stock
$630.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

A/C Pressure Switch

ES#4145078 - 4H0959126B - A/C Pressure Switch - Prevents excess pressure from building within the system - Mahle - Audi

Prevents excess pressure from building within the system

Brand:
Mahle - Corporate Logo
ES#:
4145078
Mfg#:
4H0959126B
Ships in 2 Business Days
$76.99

This product was last offered at the strikethrough price on
05-07-2026

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Air Ride Kit

ES#3972077 - 78670 - Rear Performance Air Ride Kit - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground!

Brand:
Air Lift - Corporate Logo
ES#:
3972077
Mfg#:
78670
Ships in 5 Business Days
$1889.99 USD
This product is lifetime replacement eligible Lifetime Replacement

B5 Quattro Rear Wheel Bearing Service Kit

ES#3188120 - 000576SCH01AKT - B5 Quattro Rear Wheel Bearing Service Kit - Includes Schwaben service tool, wheel bearings, and hardware to conveniently replace both rear wheel bearings on your B5 quattro - Assembled By ECS - Audi

Includes Schwaben service tool, wheel bearings, and hardware to conveniently replace both rear wheel bearings on your B5 quattro 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3188120
Mfg#:
000576SCH01AKT
In Stock
ON SALE! SAVE 23%
$351.99

This product was last offered at the strikethrough price on
05-02-2026

$269.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Slave Cylinder

ES#2627512 - 8K0721257A - Clutch Slave Cylinder - Restore the feel of your clutch - Sachs - Audi

Restore the feel of your clutch We Price Match - Give Us A Call or Chat!
Up to production date 1/28/2013

Brand:
Sachs - Corporate Logo
ES#:
2627512
Mfg#:
8K0721257A
Ships in 5 Business Days
$47.99

This product was last offered at the strikethrough price on
08-26-2026

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Axle Assembly - Right

ES#3074072 - NCV23596 - Front Axle Assembly - Right - Complete driveshaft with CV joints; ready for installation - GSP North America - Audi

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

Brand:
GSP North America - Corporate Logo
ES#:
3074072
Mfg#:
NCV23596
Ships in 4 Business Days
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Mount Insert Kit - Black

ES#4620269 - 8K0599381H - Rear Differential Mount Insert Kit - Black - Enhance your driving experience by filling the bushing void. - JH Motorsports - Audi

Enhance your driving experience by filling the bushing void.

Brand:
JH Motorsports - Corporate Logo
ES#:
4620269
Mfg#:
8K0599381H
In Stock
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Black Bolts

ES#4476369 - B9FLUSH1KT - 19" Wheel Spacer Flush Fit Kit - Black Bolts - Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels - Assembled By ECS - Audi

Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4476369
Mfg#:
B9FLUSH1KT
Ships in 4 Business Days
ON SALE! SAVE 10%
$299.99

This product was last offered at the strikethrough price on
05-02-2026

$269.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brisk Silver Racing ER08S Spark Plugs - Set Of Four

ES#4030524 - er08s-4KT - Brisk Silver Racing ER08S Spark Plugs - Set Of Four - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! Three heat ranges colder than stock with a non-projected tip

Brand:
Brisk - Corporate Logo
ES#:
4030524
Mfg#:
ER08S-4KT
Ships in 5 Business Days
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Gasket

ES#3505026 - 06K103383K - Cylinder Head Gasket - Seal between cylinder head and engine block - Elring - Audi Volkswagen

Seal between cylinder head and engine block 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with CYMC engine codes

Brand:
Elring - Corporate Logo
ES#:
3505026
Mfg#:
06K103383K
In Stock
$53.99

This product was last offered at the strikethrough price on
04-10-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Intake Air Duct

ES#3988147 - 034-108-1024 - X34 Carbon Fiber Intake Air Duct - The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System - 034Motorsport - Audi

The perfect companion to the 034Motorsport X34 Carbon Fiber Cold Air Intake System 2X Entries Into Our F80 M3 Sweepstakes
*To be used with 034Motorsport X34 Intake System or most aftermarket intakes that utilize the OEM air duct*

Brand:
034Motorsport - Corporate Logo
ES#:
3988147
Mfg#:
034-108-1024
In Stock
$377.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE 2.0T FSI/TSI Port Injection Fuel Rail

ES#3677839 - IEIMVC17 - IE 2.0T FSI/TSI Port Injection Fuel Rail - Get past the direct injection "fuel limit ceiling" - Integrated Engineering - Audi Volkswagen

Get past the direct injection "fuel limit ceiling" Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
Requires IE Manifold

Brand:
Integrated Engineering - Corporate Logo
ES#:
3677839
Mfg#:
IEIMVC17
In Stock
$208.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2593188 - 06H903137CKT1 - Accessory Belt Kit - Keep your accessories running properly! - Assembled By ECS - Audi

Keep your accessories running properly! 10X Entries Into Our F80 M3 Sweepstakes
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593188
Mfg#:
06H903137CKT1
In Stock
ON SALE! SAVE 22%
$99.99

This product was last offered at the strikethrough price on
05-02-2026

$78.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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