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Volkswagen Passat Engine Cooling Refresh Kits

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Cooling System Refresh Kit

ES#4017071 - 03h121117aKT - Cooling System Refresh Kit - This coolant refresh kit covers the most common failures in the cooling system on your 3.6L VR6 engine - Assembled By ECS - Volkswagen

This coolant refresh kit covers the most common failures in the cooling system on your 3.6L VR6 engine 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017071
Mfg#:
03H121117AKT
Ships on Nov 25, 2026
ON SALE!
$600.99

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

$593.30 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - TSI

ES#2765422 - 1K0121251ABKT4 - Cooling System Refresh Kit - TSI - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

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

Brand:
Assembled By ECS - Corporate Logo
ES#:
2765422
Mfg#:
1K0121251ABKT4
Ships on Aug 21, 2026
Auto Notify
ON SALE!
$254.99

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

$252.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2966591 - 5C0122101AAKT1 - Cooling System Refresh Kit - Level 1 - This entry level kit covers the most common failures in the cooling system - Assembled By ECS - Volkswagen

This entry level kit covers the most common failures in the cooling system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966591
Mfg#:
5C0122101AAKT1
Ships in 2 Business Days
ON SALE!
$846.99

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

$827.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2966597 - 5C0122101AAKT4 - Cooling System Refresh Kit - Level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

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

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966597
Mfg#:
5C0122101AAKT4
Ships in 2 Business Days
ON SALE!
$1270.99

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

$1256.48 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2966589 - 5c0122101aaKT - Cooling System Refresh Kit - Level 1 - This entry level kit covers the most common failures in the cooling system - Genuine Volkswagen Audi - Volkswagen

This entry level kit covers the most common failures in the cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2966589
Mfg#:
5C0122101AAKT
Ships in 2 Business Days
$987.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit

ES#4017079 - 03h121117aKT1 - Cooling System Refresh Kit - This coolant refresh kit covers the most common failures in the cooling system on your 3.6L VR6 engine - Genuine Volkswagen Audi - Volkswagen

This coolant refresh kit covers the most common failures in the cooling system on your 3.6L VR6 engine For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4017079
Mfg#:
03H121117AKT1
Ships in 2 Business Days
$990.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2966595 - 5C0122101AAKT3 - Cooling System Refresh Kit - Level 2 - This comprehensive kit eliminates weak spots in your cooling system - Genuine Volkswagen Audi - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2966595
Mfg#:
5C0122101AAKT3
Ships in 2 Business Days
$1412.09 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4265560 - 4b0121055KT - Cooling System Refresh Kit - Level 1 - The most common failure points in your cars cooling system - Genuine Volkswagen Audi - Volkswagen

The most common failure points in your cars cooling system For vehicles with AEB or ATW engine codes only, with VIN from 8D-Y-120001, split is in the 2000 model year.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4265560
Mfg#:
4B0121055KT
Ships in 6 Business Days
$479.70

This product was last offered at the strikethrough price on
07-17-2026

$475.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4265538 - 038121119BKT - Cooling System Refresh Kit - Level 1 - The most common failure points in your cars cooling system - Genuine Volkswagen Audi - Volkswagen

The most common failure points in your cars cooling system For vehicles with AUG or AWM engine codes only.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4265538
Mfg#:
038121119BKT
Ships in 6 Business Days
$556.31

This product was last offered at the strikethrough price on
07-17-2026

$548.65 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - TSI

ES#2592482 - 1K0121251ABKT2 - Cooling System Refresh Kit - TSI - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

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

Brand:
Assembled By ECS - Corporate Logo
ES#:
2592482
Mfg#:
1K0121251ABKT2
Ships on Aug 21, 2026
Auto Notify
ON SALE!
$254.99

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

$252.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - FSI

ES#2592480 - 1K0121251ABKT1 - Cooling System Refresh Kit - FSI - This comprehensive kit eliminates weak spots in your cooling system - Genuine Volkswagen Audi - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2592480
Mfg#:
1K0121251ABKT1
Ships on Sep 11, 2026
Auto Notify
$902.99 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2587052 - 8D0121251PKT - Cooling System Refresh Kit - Level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEB or ATW engine code with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587052
Mfg#:
8D0121251PKT
Ships on Nov 25, 2026
ON SALE!
$438.99

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

$407.22 USD
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2587049 - 8D0121251BCKT - Cooling System Refresh Kit - Level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Volkswagen

This comprehensive kit eliminates weak spots in your cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEB or ATW engine code, automatic transmission with VIN up to 8D-Y-120000 only, split is in the 2000 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2587049
Mfg#:
8D0121251BCKT
Ships on Nov 25, 2026
ON SALE!
$304.99

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

$302.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4265561 - 4B0121055KT2 - Cooling System Refresh Kit - Level 1 - The most common failure points in your cars cooling system - Assembled By ECS - Volkswagen

The most common failure points in your cars cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEB or ATW engine codes only, with VIN from 8D-Y-120001, split is in the 2000 model year.

Brand:
Assembled By ECS - Corporate Logo
ES#:
4265561
Mfg#:
4B0121055KT2
Ships on Nov 25, 2026
ON SALE!
$154.99

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

$152.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#4265562 - 4B0121055KT3 - Cooling System Refresh Kit - Level 1 - The most common failure points in your cars cooling system - Assembled By ECS - Volkswagen

The most common failure points in your cars cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEB or ATW engine codes only, with VIN up to 8D-Y-120000, split is in the 2000 model year.

Brand:
Assembled By ECS - Corporate Logo
ES#:
4265562
Mfg#:
4B0121055KT3
Ships on Nov 25, 2026
ON SALE!
$149.99

This product was last offered at the strikethrough price on
01-26-2026

$146.60 USD
Free Shipping
on orders $49 and up
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 Volkswagen

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

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