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Volkswagen Passat Cooling System Thermostat Kits

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Thermostat/Water Pump Kit (Updated)

ES#4699573 - 06L121111P - Thermostat/Water Pump Kit (Updated) - Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and o-rings - Bremmen Parts - Audi Volkswagen Porsche
ECS Tuning recommends this product.

Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and o-rings 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4699573
Mfg#:
06L121111P
In Stock
ON SALE! SAVE 10%
$250.99

This product was last offered at the strikethrough price on
07-16-2026

$225.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat/Water Pump Kit - With Belt

ES#5425238 - 06L121111J - Thermostat/Water Pump Kit - With Belt - Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. - Bremmen Parts - Audi Volkswagen Porsche

Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5425238
Mfg#:
06L121111J
In Stock
$270.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2588723 - 06F121111FKT - Thermostat Replacement Kit - Includes thermostat with housing, o-ring and mounting hardware - Assembled By ECS - Audi Volkswagen

Includes thermostat with housing, o-ring and mounting hardware 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2588723
Mfg#:
06F121111FKT
In Stock
ON SALE! SAVE 23%
$48.97

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

$37.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2586887 - 06H121113BKT1 - Thermostat Replacement Kit - Includes a thermostat, housing, O-ring and bolts - Assembled By ECS - Audi Volkswagen

Includes a thermostat, housing, O-ring and bolts 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with CCTA engine code only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586887
Mfg#:
06H121113BKT1
In Stock at Vendor
ON SALE! SAVE 36%
$33.99

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

$21.91 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2794834 - 03H121113KT1 - Thermostat Replacement Kit - Designed to easy installation procedure of thermostat and prevent a re-do - Assembled By ECS - Volkswagen

Designed to easy installation procedure of thermostat and prevent a re-do 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2794834
Mfg#:
03H121113KT1
Ships in 3 Business Days
ON SALE!
$225.99

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

$224.82 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Replacement Kit

ES#3691730 - 06k121121eKT - Thermostat Replacement Kit - Includes a thermostat, housing, O-ring and bolts - Genuine Volkswagen Audi - Volkswagen

Includes a thermostat, housing, O-ring and bolts

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3691730
Mfg#:
06K121121EKT
Ships in 3 Business Days
$204.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2586885 - 06H121113BKT - Thermostat Replacement Kit - Includes a thermostat, housing, O-ring and bolts - Genuine Volkswagen Audi - Volkswagen

Includes a thermostat, housing, O-ring and bolts For vehicles with CCTA engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2586885
Mfg#:
06H121113BKT
Ships in 1-2 days
$176.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2763367 - 075121113DKT3 - Thermostat Replacement Kit - Includes the parts you'll want to replace while performing a thermostat replacement - Assembled By ECS - Volkswagen

Includes the parts you'll want to replace while performing a thermostat replacement 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2763367
Mfg#:
075121113DKT3
Ships in 1 Business Day
ON SALE!
$71.99

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

$71.18 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Thermostat Replacement Kit

ES#2966372 - b5passtditstatKT - Thermostat Replacement Kit - Includes thermostat with housing, o-ring and mounting hardware - Genuine Volkswagen Audi - Volkswagen

Includes thermostat with housing, o-ring and mounting hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2966372
Mfg#:
B5PASSTDITSTATKT
Ships in 9 Business Days
$128.99

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

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Thermostat Replacement Kit

ES#2580973 - 06B121121LKT1 - Complete Thermostat Replacement Kit - Includes a genuine 87C thermostat, housing, o-ring and stretch bolts - Assembled By ECS - Volkswagen

Includes a genuine 87�C thermostat, housing, o-ring and stretch bolts 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AUG or AWM engine codes only.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580973
Mfg#:
06B121121LKT1
Ships on Sep 17, 2026
ON SALE! SAVE 24%
$36.99

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

$28.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Low Temperature Kit

ES#4831 - VR6LTKEP - ECS Low Temperature Kit - Includes 75-82c fan switch & a 70c thermostat with sealing o-ring - Assembled By ECS - Volkswagen

Includes 75-82c fan switch & a 70c thermostat with sealing o-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4831
Mfg#:
VR6LTKEP
Back Ordered
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Thermostat Replacement Kit

ES#2580967 - 050121113CKT - Complete Thermostat Replacement Kit - Includes a genuine 87C thermostat, housing, o-ring and stretch bolts - Genuine Volkswagen Audi - Volkswagen

Includes a genuine 87�C thermostat, housing, o-ring and stretch bolts For vehicles with AUG or AWM engine codes only.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2580967
Mfg#:
050121113CKT
In Stock
$83.99

This product was last offered at the strikethrough price on
07-26-2026

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2966332 - n90136802KT - Thermostat Replacement Kit - Includes a thermostat and O-ring - Genuine Volkswagen Audi - Volkswagen

Includes a thermostat and O-ring

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2966332
Mfg#:
N90136802KT
Ships in 3 Business Days
$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Thermostat Replacement Kit

ES#2580971 - 030121121BKT1 - Complete Thermostat Replacement Kit - Includes a genuine 87C thermostat, housing, o-ring and stretch bolts - Assembled By ECS - Volkswagen

Includes a genuine 87�C thermostat, housing, o-ring and stretch bolts 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with AEB or ATW engine codes only.

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580971
Mfg#:
030121121BKT1
Ships on Sep 17, 2026
ON SALE! SAVE 24%
$36.99

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

$28.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2966379 - B5PSSTDITSTATKT1 - Thermostat Replacement Kit - Includes thermostat with housing, o-ring and mounting hardware - Assembled By ECS - Volkswagen

Includes thermostat with housing, o-ring and mounting hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966379
Mfg#:
B5PSSTDITSTATKT1
Ships in 1-2 days
ON SALE! SAVE 25%
$33.99

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

$25.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2966333 - N901368021KT - Thermostat Replacement Kit - Includes a thermostat and O-ring - Assembled By ECS - Volkswagen

Includes a thermostat and O-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2966333
Mfg#:
N901368021KT
In Stock at Vendor
ON SALE! SAVE 41%
$25.99

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

$15.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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