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Audi A4 Engine Cooling Refresh Kits

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Thermostat / Water Pump Replacement Kit

ES#3551351 - 06l121111hKT1 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat. Includes upgraded Bremmen Parts water pump/thermostat. - Assembled By ECS - Audi Volkswagen

Includes necessary parts to replace the thermostat. Includes upgraded Bremmen Parts water pump/thermostat. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3551351
Mfg#:
06L121111HKT1
In Stock
ON SALE! SAVE 18%
$298.99

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

$243.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat / Water Pump Replacement Kit

ES#5386442 - 06L121111HPKT3 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat. Includes revised genuine water pump/thermostat. - Genuine Volkswagen Audi - Audi Volkswagen

Includes necessary parts to replace the thermostat. Includes revised genuine water pump/thermostat.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5386442
Mfg#:
06L121111HPKT3
Ships in 2 Business Days
$809.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat / Water Pump Replacement Kit

ES#5386432 - 06L121111HPKT2 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat. Includes upgraded Hamburg Technic water pump/thermostat. - Assembled By ECS - Audi Volkswagen

Includes necessary parts to replace the thermostat. Includes upgraded Hamburg Technic water pump/thermostat. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5386432
Mfg#:
06L121111HPKT2
In Stock
ON SALE!
$312.99

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

$312.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling Flange Replacement Kit

ES#2602901 - 06B121132EKT1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602901
Mfg#:
06B121132EKT1
In Stock
ON SALE! SAVE 25%
$64.99

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

$49.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2770995 - 06D121132CKT2 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2770995
Mfg#:
06D121132CKT2
Ships in 1-2 days
ON SALE! SAVE 31%
$48.99

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

$33.93 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#3714283 - 06l121012akt2 - Cooling System Refresh Kit - Level 1 - This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware. - Genuine Volkswagen Audi - Audi

This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware. For vehicles with engine code CYMC (model years through 2020)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3714283
Mfg#:
06L121012AKT2
Ships in 2 Business Days
$1045.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4830178
Mfg#:
8W0121405KKT
Ships in 2 Business Days
$1037.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - level 1

ES#2847693 - 06H121026BAKT2 - Cooling System Refresh Kit - level 1 - Service your critical cooling system components with one kit! - Assembled By ECS - Audi

Service your critical cooling system components with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2847693
Mfg#:
06H121026BAKT2
In Stock
ON SALE! SAVE 19%
$306.99

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

$247.72 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - level 2

ES#4220580 - 06H121026BAKT6 - Cooling System Refresh Kit - level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Audi

This comprehensive kit eliminates weak spots in your cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
Automatic transmission vehicles only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4220580
Mfg#:
06H121026BAKT6
In Stock
ON SALE!
$561.99

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

$530.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4766492 - 06L121012AKT2AKT - Cooling System Refresh Kit - Level 1 - This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware. - Assembled By ECS - Audi

This entry level kit includes thermostat, waterpump, expansion tank, coolant, and all necessary hardware. 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with engine code CYMC (model years through 2020)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4766492
Mfg#:
06L121012AKT2AKT
Ships in 4 Business Days
ON SALE!
$516.99

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

$473.55 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling Flange Replacement Kit

ES#2770993 - 06D121132Ckt1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Genuine Volkswagen Audi - Audi

Cure the common coolant leak coming from the back of your engine compartment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2770993
Mfg#:
06D121132CKT1
Ships in 1-2 days
$113.99

This product was last offered at the strikethrough price on
07-24-2026

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#2765514 - 06D121111GKT4 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Genuine Volkswagen Audi - Audi

Replace your thermostat and temp sensors with one kit!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2765514
Mfg#:
06D121111GKT4
In Stock
$211.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling Flange Replacement Kit - With Coolant

ES#2602886 - 06B121132EKT - Cooling Flange Replacement Kit - With Coolant - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602886
Mfg#:
06B121132EKT
In Stock
ON SALE!
$97.99

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

$90.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 3

ES#3648516 - 06D121132CKT4 - 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 For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648516
Mfg#:
06D121132CKT4
Ships in 1-2 days
ON SALE! SAVE 14%
$402.99

This product was last offered at the strikethrough price on
02-08-2026

$347.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2582027 - 06D121111GKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2582027
Mfg#:
06D121111GKT2
In Stock
ON SALE! SAVE 11%
$179.99

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

$160.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Flange Replacement Kit - With Coolant

ES#2770997 - 06D121132CKT3 - Coolant Flange Replacement Kit - With Coolant - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2770997
Mfg#:
06D121132CKT3
Ships in 1-2 days
ON SALE! SAVE 11%
$81.99

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

$72.76 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Engine Cooling Refresh Kits

Stay ahead of cooling issues by servicing your cooling system with our curated cooling system service kits that include everything you need to bring your cooling system back up to snuff.

Let us help you find the parts that fit your Audi

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