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Your Vehicle Audi B9 S5 Quattro 3.0T Sportback

Audi B6 A4 1.8T Assembled By ECS Service Kits Sale

Whether it's preventative maintenance, routine service, or buttoning up your seasonal project, don't wait until the eleventh hour to finish up your wintertime vehicle work.

At ECS Tuning, we have the goods to keep your vehicle on the road. Assembled By ECS kits are offered in a large variety to mend nearly any ailing Audi. Get your project underway and relax knowing your vehicle is properly serviced.


Assembled by the Pros

Fits:
Audi B6 A4 1.8T 2002-2005

Timing Belt Kit - Ultimate
Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save.
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Brand: Assembled By ECS - Corporate Logo
ES#: 3960
Mfg#: B6A4UTBKEV

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Availability:
Ships in 1-3 days
On SALE
$226.99

This product was last offered at the strikethrough price on
04-08-2026

$213.58 USD
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This product is lifetime replacement eligible Lifetime Replacement
Timing Belt Kit - Ultimate
Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save.
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Brand: Assembled By ECS - Corporate Logo
ES#: 6143
Mfg#: B6A4UTBKLV

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Availability:
In Stock
On SALE
$236.99

This product was last offered at the strikethrough price on
04-08-2026

$220.35 USD
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This product is lifetime replacement eligible Lifetime Replacement
Ultimate Timing Belt Kit - With Gates Racing Timing Belt
Looking for the best timing belt kit on the market? Look no further than ECS Tuning
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Brand: Assembled By ECS - Corporate Logo
ES#: 2569777
Mfg#: B6A4UTBKEV1

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Availability:
Ships in 1-3 days
$290.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
Ultimate Timing Belt Kit - With Gates Racing Timing Belt
Looking for the best timing belt kit on the market? Look no further than ECS Tuning
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Brand: Assembled By ECS - Corporate Logo
ES#: 2569779
Mfg#: B6A4UTBKLV1

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Availability:
In Stock
$301.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
Timing Belt Kit - Ultimate Plus
The ultimate in preventative maintenance!
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Brand: Assembled By ECS - Corporate Logo
ES#: 8146
Mfg#: 06B198500

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Availability:
Ships in 1-3 days
On SALE
$315.99

This product was last offered at the strikethrough price on
03-18-2026

$302.48 USD
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This product is lifetime replacement eligible Partial Replacement
Timing Belt Kit - Ultimate Plus
The ultimate in preventative maintenance!
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Brand: Assembled By ECS - Corporate Logo
ES#: 8147
Mfg#: 06B198502

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Availability:
In Stock
On SALE
$339.99

This product was last offered at the strikethrough price on
03-18-2026

$325.72 USD
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This product is lifetime replacement eligible Partial Replacement
Ultimate Plus Timing Belt Kit - With Gates Racing Timing Belt
Looking for the best timing belt kit on the market? Look no further than ECS Tuning
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Brand: Assembled By ECS - Corporate Logo
ES#: 2569782
Mfg#: 06B198500KT

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Availability:
Ships in 1-3 days
On SALE Save 14%
$429.99

This product was last offered at the strikethrough price on
03-24-2026

$370.38 USD
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This product is lifetime replacement eligible Partial Replacement
Ultimate Plus Timing Belt Kit - With Gates Racing Timing Belt
Looking for the best timing belt kit on the market? Look no further than ECS Tuning
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2569783
Mfg#: 06B198502KT

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Availability:
In Stock
On SALE Save 13%
$439.99

This product was last offered at the strikethrough price on
03-24-2026

$381.79 USD
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This product is lifetime replacement eligible Partial Replacement
Heater Core Refresh Kit
Complete kit to replace your broken heater core
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Brand: Assembled By ECS - Corporate Logo
ES#: 2731839
Mfg#: 8E1820031KT

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Availability:
In Stock
On SALE Save 16%
$132.99

This product was last offered at the strikethrough price on
01-03-2026

$112.28 USD
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This product is lifetime replacement eligible Partial Replacement
01V Automatic Transmission Service Kit
Includes the necessary filter, plugs, gaskets, and Vaico ATF G052 fluid to service your transmission
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Brand: Assembled By ECS - Corporate Logo
ES#: 261797
Mfg#: ECS01VSKT

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Availability:
Ships on Nov 6, 2026
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On SALE Save 35%
$351.15

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

$228.33 USD
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This product is lifetime replacement eligible Partial Replacement
Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plug
Complete kit with Motul Gear 300 fluid to service your rear differential
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Brand: Assembled By ECS - Corporate Logo
ES#: 2538236
Mfg#: 016409399BKT

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Availability:
Ships on Aug 14, 2026
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On SALE Save 15%
$110.99

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

$94.10 USD
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This product is lifetime replacement eligible Partial Replacement
Rear Differential Service Kit - With ECS Magnetic Drain/Fill Plug
Complete kit with Redline 75w90 fluid to service your rear differential
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Brand: Assembled By ECS - Corporate Logo
ES#: 2580731
Mfg#: 016409399BKT2

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Availability:
Ships on Aug 14, 2026
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On SALE Save 18%
$135.99

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

$112.08 USD
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This product is lifetime replacement eligible Partial Replacement
Manual Transmission Service Kit W/ ECS Magnetic Drain Plug
Featuring Redline MT-90 fluid to service your transmission
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Brand: Assembled By ECS - Corporate Logo
ES#: 2602227
Mfg#: 012301127FKT

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Availability:
In Stock
$65.99 USD
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This product is lifetime replacement eligible Partial Replacement
Manual Transmission Service Kit W/ ECS Magnetic Drain Plug
Featuring Redline MTL fluid (ES#1502) to service your transmission and a ECS magnetic drain plug(ES# 3660327).
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Brand: Assembled By ECS - Corporate Logo
ES#: 2602226
Mfg#: 012301127FKT2

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Availability:
In Stock
$59.99 USD
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This product is lifetime replacement eligible Partial Replacement
Manual Transmission Service Kit - With ECS Magnetic Drain Plug
Featuring Redline MTL fluid to service your transmission
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Brand: Assembled By ECS - Corporate Logo
ES#: 2569944
Mfg#: N10037106KT2

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Availability:
Ships on Aug 14, 2026
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On SALE
$109.99

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

$104.81 USD
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on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
Manual Transmission Service Kit with Magnetic Drain/Fill Plugs - *ECS Recommends*
Featuring 3 Quarts of Redline MT-90 fluid and ECS Magnetic Drain Plug and Fill plugs to service your transmission. M24x1.5
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Brand: Assembled By ECS - Corporate Logo
ES#: 2748767
Mfg#: N90917801KT

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Availability:
In Stock
On SALE Save 17%
$153.99

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

$128.36 USD
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This product is lifetime replacement eligible Partial Replacement
Clutch Installation Kit
Includes all of the necessary hardware to install a new clutch
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Brand: Assembled By ECS - Corporate Logo
ES#: 2589667
Mfg#: N90308607KT1

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Availability:
Ships in 2 Business Days
On SALE
$281.99

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

$275.30 USD
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This product is lifetime replacement eligible Lifetime Replacement
Complete Transmission Mount Kit
Includes all mounts and hardware to reduce driveline vibrations
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Brand: Assembled By ECS - Corporate Logo
ES#: 2587114
Mfg#: 8D0399151RKT1

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Availability:
Ships in 3 Business Days
On SALE
$73.99

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

$70.87 USD
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This product is lifetime replacement eligible Lifetime Replacement
Performance Engine Mount Kit - Audi B6/B7 A4
Includes upgraded RS4 motor mounts, ECS polyurethane snub mount and hardware
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Brand: Assembled By ECS - Corporate Logo
ES#: 2586485
Mfg#: SM100004KT

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Availability:
In Stock
On SALE
$266.99

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

$263.09 USD
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This product is lifetime replacement eligible Lifetime Replacement
Cooling System Refresh Kit - Level 1
Replace your thermostat, temp sensor and expansion tank with one kit!
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Brand: Assembled By ECS - Corporate Logo
ES#: 2586289
Mfg#: 06B121111K2KT

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Availability:
In Stock at Vendor
On SALE Save 11%
$227.99

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

$203.45 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling System Refresh Kit - Level 1 With ECS Billet Aluminum J-Plug
Includes ECS' upgraded J-plug & replace your thermostat, temp sensor & expansion tank with one kit!
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Brand: Assembled By ECS - Corporate Logo
ES#: 2795701
Mfg#: 06B121111KT2

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Availability:
In Stock at Vendor
On SALE Save 17%
$274.99

This product was last offered at the strikethrough price on
01-03-2026

$228.28 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling System Refresh Kit - Level 2
Replace your thermostat, temp sensors, coolant flange, and expansion tank with one kit!
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Brand: Assembled By ECS - Corporate Logo
ES#: 2608082
Mfg#: 06B121111KKT2

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Availability:
In Stock at Vendor
On SALE Save 11%
$271.99

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

$241.49 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug
Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2795704
Mfg#: 06B121111KT3

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Availability:
In Stock at Vendor
On SALE Save 17%
$317.99

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

$264.08 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling System Refresh Kit - Level 3
Replace critical cooling system components and perform a proper coolant system flush
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Brand: Assembled By ECS - Corporate Logo
ES#: 2608083
Mfg#: 06B121132EKT2

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Availability:
In Stock at Vendor
On SALE Save 11%
$284.99

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

$252.78 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling System Refresh Kit - Level 3 With ECS Billet Aluminum J-Plug
Includes ECS' upgraded J-plug, replace critical cooling system components & perform a proper coolant system flush
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2795706
Mfg#: 06B121132EKT4

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Availability:
In Stock at Vendor
On SALE Save 17%
$330.99

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

$274.71 USD
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This product is lifetime replacement eligible Partial Replacement
Cooling Flange Replacement Kit
Cure the common coolant leak coming from the back of your engine compartment
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Brand: Assembled By ECS - Corporate Logo
ES#: 2602901
Mfg#: 06B121132EKT1

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Availability:
In Stock
On SALE Save 25%
$64.99

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

$49.06 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Cooling Flange Replacement Kit - With Coolant
Cure the common coolant leak coming from the back of your engine compartment
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Brand: Assembled By ECS - Corporate Logo
ES#: 2602886
Mfg#: 06B121132EKT

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Availability:
In Stock
On SALE Save 11%
$103.99

This product was last offered at the strikethrough price on
01-03-2026

$92.19 USD
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This product is lifetime replacement eligible Partial Replacement
Expansion Tank Replacement Kit
Everything you need to replace your faded, cracked, or leaky expansion tank!
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Brand: Assembled By ECS - Corporate Logo
ES#: 2586930
Mfg#: 8E0121403KT1

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Availability:
In Stock
On SALE
$47.99

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

$45.38 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Oil Cooler replacement Kit - Stage 1
Everything you need to replace your leaking oil cooler
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Brand: Assembled By ECS - Corporate Logo
ES#: 2718912
Mfg#: 028117021LKT2

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Availability:
In Stock
On SALE Save 19%
$107.99

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

$87.48 USD
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This product is lifetime replacement eligible Partial Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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