Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

Volkswagen Jetta IV GLI 1.8T

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Volkswagen Jetta IV GLI 1.8T
Your Vehicle Volkswagen Jetta IV GLI 1.8T
Change Clear

Volkswagen Jetta IV GLI 1.8T Thermostat Parts

Sort By
Filter By
Return to Top

Heavy Duty Cast Aluminum Thermostat Housing

ES#3086042 - 006660ECS01 - Heavy Duty Cast Aluminum Thermostat Housing - The last thermostat housing you'll ever need! - ECS - Audi Volkswagen

The last thermostat housing you'll ever need! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3086042
Mfg#:
006660ECS01
In Stock
ON SALE! SAVE 25%
$85.99

This product was last offered at the strikethrough price on
06-13-2026

$64.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#4766153 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Bremmen Parts - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766153
Mfg#:
050121113C
In Stock
ON SALE!
$16.99

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

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Racing Thermostat (82C)

ES#3184176 - MMTS-GTI-99 - Racing Thermostat (82C) - Prevent overheating and premature engine wear with a lower opening temperature - Mishimoto - Audi Volkswagen

Prevent overheating and premature engine wear with a lower opening temperature

Brand:
Mishimoto - Corporate Logo
ES#:
3184176
Mfg#:
MMTS-GTI-99
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Cooling System Upgrade Kit

ES#3086229 - 006368ecs01a1KT - Cast Aluminum Cooling System Upgrade Kit - Replace the failure prone components in your cooling system with cast aluminum - Assembled By ECS - Audi Volkswagen

Replace the failure prone components in your cooling system with cast aluminum 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with manual transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3086229
Mfg#:
006368ECS01A1KT
Back Ordered
Auto Notify
ON SALE! SAVE 24%
$231.99

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

$176.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#2713078 - 075121113D - Thermostat - 80C - Includes sealing O-Ring - Vemo - Audi Volkswagen

Includes sealing O-Ring

Brand:
Vemo - Corporate Logo
ES#:
2713078
Mfg#:
075121113D
In Stock at Vendor
$18.99

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

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#261231 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear - Genuine Volkswagen Audi - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261231
Mfg#:
050121113C
Ships in 1-2 days
15% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$61.99

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

$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#544 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Mahle-Behr - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring

Brand:
Mahle-Behr - Corporate Logo
ES#:
544
Mfg#:
050121113C
In Stock
$24.99

This product was last offered at the strikethrough price on
05-21-2026

$24.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen/Hex Bolt - Priced Each

ES#6661 - N90945002 - Allen/Hex Bolt - Priced Each - Install new hardware with your new parts. M7x21.5mm - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M7x21.5mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
6661
Mfg#:
N90945002
In Stock
Limited Qty Sale
29% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$8.49

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

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2500836 - 06A121121C - Thermostat Housing - Common point of failure for the cooling system. Does not include O-Ring. - URO - Audi Volkswagen

Common point of failure for the cooling system. Does not include O-Ring. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2500836
Mfg#:
06A121121C
In Stock
$6.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#261234 - 038121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x4 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x4

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261234
Mfg#:
038121119B
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#1306802 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Vemo - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring

Brand:
Vemo - Corporate Logo
ES#:
1306802
Mfg#:
050121113C
In Stock
ON SALE! SAVE 38%
$18.99

This product was last offered at the strikethrough price on
05-14-2026

$11.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3470645 - 462-121-121C - Cast Aluminum Thermostat Housing - Common point of failure for the cooling system. Does not include O-ring. - iABED Industries - Volkswagen

Common point of failure for the cooling system. Does not include O-ring.

Brand:
iABED Industries - Corporate Logo
ES#:
3470645
Mfg#:
462-121-121C
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring - Priced Each

ES#2865801 - 038121119B - Thermostat O-Ring - Priced Each - Recommended when changing the thermostat - Febi - Audi Volkswagen

Recommended when changing the thermostat 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865801
Mfg#:
038121119B
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#259317 - 06A121121C - Thermostat Housing - Common point of failure for the cooling system. Does not include O-ring. - Genuine Volkswagen Audi - Volkswagen

Common point of failure for the cooling system. Does not include O-ring.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259317
Mfg#:
06A121121C
In Stock at Vendor
$45.99

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

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#3149390 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Rein - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149390
Mfg#:
050121113C
Back Ordered
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#514001 - 038121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x4 - Victor Reinz - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x4

Brand:
Victor Reinz - Corporate Logo
ES#:
514001
Mfg#:
038121119B
In Stock at Vendor
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings