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Audi A4 Most Popular Parts

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Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing (Caster Adjustable 75mm) - Street

ES#4829860 - PFF3-702G - Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing (Caster Adjustable 75mm) - Street - Eliminate deflection caused by stock rubber bushings! - Powerflex - Audi

Eliminate deflection caused by stock rubber bushings! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For the curved control arm with 75mm bushings up to the 2012 model year. Fits all models from 2013+

Brand:
Powerflex - Corporate Logo
ES#:
4829860
Mfg#:
PFF3-702G
Ships in 1 Business Day
$200.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Pressure Switch

ES#4057423 - 4H0959126B - A/C Pressure Switch - Prevents excess pressure from building within the system - Four Seasons - Audi

Prevents excess pressure from building within the system Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Four Seasons - Corporate Logo
ES#:
4057423
Mfg#:
4H0959126B
Ships in 1 Business Day
$75.99

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

$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#3432509 - 8E0201511L - Fuel Filter - Has internal fuel pressure regulator. - Mahle - Audi

Has internal fuel pressure regulator. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From the 2004 model year

Brand:
Mahle - Corporate Logo
ES#:
3432509
Mfg#:
8E0201511L
Ships in 1 Business Day
$82.99 USD
Free Shipping
on orders $49 and up

TRW Ultra Low-Metallic Front Brake Pad Set

ES#4415531 - TXH1014 - TRW Ultra Low-Metallic Front Brake Pad Set - TRW Ultra pad set featuring a copper-free low-metallic compound and CITEC break-in coating - TRW - Audi Volkswagen Porsche

TRW Ultra pad set featuring a copper-free low-metallic compound and CITEC break-in coating Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For use with the Stage 4 Big Brake Kit

Brand:
TRW - Corporate Logo
ES#:
4415531
Mfg#:
TXH1014
Ships in 3 Business Days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Control Unit

ES#2515501 - 4D0905351 - Ignition Control Unit - Cure misfires and clear the check engine light - URO - Audi Volkswagen

Cure misfires and clear the check engine light 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!
Engine code AEB - For vehicles with Bosch style ICM

Brand:
URO - Corporate Logo
ES#:
2515501
Mfg#:
4D0905351
Ships in 1 Business Day
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Windshield SunShade

ES#3461863 - TS0159 - Windshield SunShade - Keep your interior cool and protected from harmful UV rays - WeatherTech - Audi

Keep your interior cool and protected from harmful UV rays Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
WeatherTech - Corporate Logo
ES#:
3461863
Mfg#:
TS0159
Back Ordered
$66.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#3188109 - 06E145100T - Vacuum Pump - Generates vacuum when under positive pressure - Pierburg - Audi

Generates vacuum when under positive pressure Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Pierburg - Corporate Logo
ES#:
3188109
Mfg#:
06E145100T
Ships in 1 day
$200.93 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plugs

ES#2593489 - 0AR409399BKT1 - Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plugs - Complete kit with Redline 75w90 GL-5 fluid to service your rear differential - Assembled By ECS - Audi

Complete kit with Redline 75w90 GL-5 fluid to service your rear differential 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles without Torque Vectoring differentials

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593489
Mfg#:
0AR409399BKT1
In Stock
ON SALE! SAVE 20%
$128.65

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

$103.48 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Ignition Coil

ES#4069037 - 078905104A - Ignition Coil - Keep your engine running strong - Beru - Audi Volkswagen

Keep your engine running strong Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Beru - Corporate Logo
ES#:
4069037
Mfg#:
078905104A
Ships in 1 Business Day
$200.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Headlight Tab Repair Kit - Right

ES#2992043 - 8E0998122B - Headlight Tab Repair Kit - Right - Includes two upper tab kits for right headlight - URO - Audi

Includes two upper tab kits for right headlight 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2992043
Mfg#:
8E0998122B
Ships in 1 Business Day
$25.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Balancer

ES#2681844 - 06F105243J - Harmonic Balancer - Reduces torsional vibrations on your crankshaft - Corteco - Audi Volkswagen

Reduces torsional vibrations on your crankshaft Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Corteco - Corporate Logo
ES#:
2681844
Mfg#:
06F105243J
Ships in 1 day
$200.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rebuild Kit For Billet Diverter Valve

ES#4304145 - 034-145-Z039 - Rebuild Kit For Billet Diverter Valve - Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve - 034Motorsport - Audi Volkswagen

Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
034Motorsport - Corporate Logo
ES#:
4304145
Mfg#:
034-145-Z039
In Stock
$10.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Front Lip Overlay

ES#3202628 - 022692ECS01 - Carbon Fiber Front Lip Overlay - Add a subtle touch of carbon fiber to your B8 A4 front bumper - ECS - Audi

Add a subtle touch of carbon fiber to your B8 A4 front bumper 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

For vehicles with standard (Non S-Line) front bumpers up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3202628
Mfg#:
022692ECS01
In Stock
ON SALE! SAVE 52%
$209.99

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

$100.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B2BFAB Click Fix Kit, for B8/9 A4/S4/Q5/SQ5, Sold in pairs

ES#4616245 - B2BFABCFKB89 - B2BFAB Click Fix Kit, for B8/9 A4/S4/Q5/SQ5, Sold in pairs - Gain improved axle geometry from lifting or aggressive lowering. - B2BFAB - Audi

Gain improved axle geometry from lifting or aggressive lowering. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
B2BFAB - Corporate Logo
ES#:
4616245
Mfg#:
B2BFABCFKB89
Ships in 4 Business Days
$200.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rennline 3-Piece Pedal Set - Manual Transmission - Black

ES#2840418 - P7560BLACK - Rennline 3-Piece Pedal Set - Manual Transmission - Black - Black anodized aircraft aluminum gas, brake, and clutch pedal set with rubber grips and stainless steel hardware - Rennline - Audi

Black anodized aircraft aluminum gas, brake, and clutch pedal set with rubber grips and stainless steel hardware Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Rennline - Corporate Logo
ES#:
2840418
Mfg#:
P7560BLACK
Ships in 6 Business Days
$200.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Brake Caliper - Left

ES#2608595 - 8D0615423B - Rear Brake Caliper - Left - Replace your worn or seized rear caliper - ATE - Audi

Replace your worn or seized rear caliper Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ATE - Corporate Logo
ES#:
2608595
Mfg#:
8D0615423B
Ships in 1 day
$200.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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