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Audi A4 Most Popular Parts

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ES#2137116 - 078198674-1 - ECS Tuning Timing Belt Kit - Ultimate Plus - The most comprehensive timing belt kit on the market! Includes cam locking tool. - Assembled By ECS - Audi

The most comprehensive timing belt kit on the market! Includes cam locking tool. 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-W-007798, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2137116
Mfg#:
078198674-1
Ships in 1 day
ON SALE!
$580.99

This product was last offered at the strikethrough price on
06-16-2026

$546.30 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2608175 - 06C121111CKT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608175
Mfg#:
06C121111CKT
Ships in 1-2 days
ON SALE!
$112.99

This product was last offered at the strikethrough price on
06-18-2026

$110.40 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#3648512 - 06D121111GKT5 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648512
Mfg#:
06D121111GKT5
Ships in 1 day
ON SALE!
$304.99

This product was last offered at the strikethrough price on
08-07-2026

$301.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#2649684 - 8E0121403AKT3 - Expansion Tank Replacement Kit W/ R8 Coolant Cap - Install a brand new expansion tank with a new R8 polished aluminum cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new R8 polished aluminum cap and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2649684
Mfg#:
8E0121403AKT3
Ships in 1 day
$346.44

This product was last offered at the strikethrough price on
10-26-2026

$341.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3659114 - 8K0121101MKT1 -  Radiator Installation Kit - Everything you need to install your new radiator - Assembled By ECS - Audi

Everything you need to install your new radiator 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659114
Mfg#:
8K0121101MKT1
Ships in 1 day
ON SALE!
$340.99

This product was last offered at the strikethrough price on
06-17-2026

$318.30 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2681618 - 078109479BKT1 - ECS Tuning Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job. Includes ECS cam locking tool - Assembled By ECS - Audi

Everything you need for a complete timing belt job. Includes ECS cam locking tool 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-W-007798, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2681618
Mfg#:
078109479BKT1
Ships in 1 day
ON SALE!
$519.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5504424 - 8K0412377C3KTKT2 - Front & Rear Strut Install Kit - Includes all necessary hardware for installing front struts. - Assembled By ECS - Audi Porsche

Includes all necessary hardware for installing front struts. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5504424
Mfg#:
8K0412377C3KTKT2
Ships in 1 day
ON SALE!
$332.99

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

$320.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3663755 - 8k0805201KT - Radiator Installation Kit  - Everything you need to install your new radiator - Assembled By ECS - Audi

Everything you need to install your new radiator 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3663755
Mfg#:
8K0805201KT
Ships in 1 day
$358.99

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

$343.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3184371 - 8E0615301QKT11 - Front & Rear Premium Brake Service Kit - Featuring Zimmerman rotors and ECS DD23 Daily Driver ceramic pads - Assembled By ECS - Audi

Featuring Zimmerman rotors and ECS DD23 Daily Driver ceramic pads 10X Entries Into Our F80 M3 Sweepstakes
For models with 255x12mm rear rotors

Brand:
Assembled By ECS - Corporate Logo
ES#:
3184371
Mfg#:
8E0615301QKT11
Ships in 1-2 days
ON SALE!
$427.39 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2766067 - 078131120KKT1 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve 10X Entries Into Our F80 M3 Sweepstakes
Engine code AWM

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766067
Mfg#:
078131120KKT1
Ships in 1 day
ON SALE!
$57.99

This product was last offered at the strikethrough price on
06-16-2026

$55.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2631365 - 8E0121403KT5 - Expansion Tank Replacement Kit W/ R8 Coolant Cap - Install a brand new expansion tank with a new R8 polished aluminum cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new R8 polished aluminum cap and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2631365
Mfg#:
8E0121403KT5
Ships in 1 day
$331.99

This product was last offered at the strikethrough price on
10-26-2026

$326.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2766069 - 078131120KKT3 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766069
Mfg#:
078131120KKT3
Ships in 1 day
ON SALE!
$59.99

This product was last offered at the strikethrough price on
06-16-2026

$58.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2598445 - 8D0121403LR8KT - Expansion Tank Replacement Kit W/ R8 Coolant Cap - Install a brand new expansion tank with a new R8 polished aluminum cap and hardware - Assembled By ECS - Audi Volkswagen

Install a brand new expansion tank with a new R8 polished aluminum cap and hardware 10X Entries Into Our F80 M3 Sweepstakes
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2598445
Mfg#:
8D0121403LR8KT
Ships in 1 Business Day
$345.99

This product was last offered at the strikethrough price on
10-26-2026

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2608178 - 06C121085HKT - Cooling System Refresh Kit - Level 3 - Replace critical cooling system components and perform a proper coolant system flush! - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608178
Mfg#:
06C121085HKT
Ships in 1 day
ON SALE!
$428.99

This product was last offered at the strikethrough price on
06-18-2026

$415.43 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4842869 - 8e0145155fKT - Remanufactured Power Steering Pump - Price includes a $152.10 refundable core charge. - Atlantic Automotive Engineering - Audi

Price includes a $152.10 refundable core charge.

Brand:
Atlantic Automotive Engineering - Corporate Logo
ES#:
4842869
Mfg#:
8E0145155FKT
Ships in 1-2 days
$465.99

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

$456.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5009 - 27446F - Rear Shock - Priced Each - Fits the left and right side - Boge - Audi

Fits the left and right side Sedan models up to VIN 8D-X-199999, split is in the 1999 model year

Brand:
Boge - Corporate Logo
ES#:
5009
Mfg#:
27446F
Ships in 1 day
$153.99

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

$148.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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