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

Menu

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

No Vehicle selected
Please select your vehicle below.

    • 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
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi B8 Engine Coolant Flanges & Parts

Sort By
Filter By
Return to Top

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 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

Upgraded Heavy Duty Thermostat / Water Pump Belt Kit

ES#4818763 - 06L121111P - Upgraded Heavy Duty Thermostat / Water Pump Belt Kit - Includes thermostat, water pump, belt, union, and O-rings. - Hamburg Tech - Audi Volkswagen Porsche

Includes thermostat, water pump, belt, union, and O-rings. We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4818763
Mfg#:
06L121111P
In Stock
$267.99 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 / Water Pump Replacement Kit

ES#3996455 - 06l121111hKT3 - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat - Genuine Volkswagen Audi - Audi Volkswagen

Includes necessary parts to replace the thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3996455
Mfg#:
06L121111HKT3
In Stock
$674.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat / Water Pump Replacement Kit

ES#3464963 - 06l121111hKT - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat - Genuine Volkswagen Audi - Audi Volkswagen

Includes necessary parts to replace the thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3464963
Mfg#:
06L121111HKT
In Stock
$736.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Pipe - Supply

ES#4845326 - 06E121045BB - Coolant Pipe - Supply - Main supply pipe that connects to the upper radiator hose and the engine - URO - Audi

Main supply pipe that connects to the upper radiator hose and the engine 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4845326
Mfg#:
06E121045BB
In Stock
$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Supply

ES#4759780 - 06E121045BB - Coolant Pipe - Supply - Main supply pipe that connects to the upper radiator hose and the engine - Rein - Audi

Main supply pipe that connects to the upper radiator hose and the engine 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4759780
Mfg#:
06E121045BB
In Stock
$144.99 USD
Free Shipping
on orders $49 and up

034Motorsport Billet Coolant Vent Union

ES#4810768 - 034-102-Z048 - 034Motorsport Billet Coolant Vent Union - Designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines. - 034Motorsport - Audi Volkswagen

Designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines.

Brand:
034Motorsport - Corporate Logo
ES#:
4810768
Mfg#:
034-102-Z048
In Stock
ON SALE! SAVE 10%
$31.00

This product was last offered at the strikethrough price on
06-28-2026

$27.90 USD
Free Shipping

Thermostat

ES#4671694 - 06L121111N - Thermostat - Includes housing and gasket - Genuine Volkswagen Audi - Audi Volkswagen

Includes housing and gasket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4671694
Mfg#:
06L121111N
In Stock
8% off MSRP

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

$536.87

This product was last offered at the strikethrough price on
07-19-2026

$494.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Supply

ES#3132775 - 06E121045BB - Coolant Pipe - Supply - Main supply pipe that connects to the upper radiator hose and the engine - Genuine Volkswagen Audi - Audi

Main supply pipe that connects to the upper radiator hose and the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3132775
Mfg#:
06E121045BB
In Stock
10% off MSRP

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

$206.64

This product was last offered at the strikethrough price on
02-23-2026

$186.76 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat/Water Pump Kit

ES#4039367 - 06L121111H - Thermostat/Water Pump Kit - Includes thermostat, water pump, gasket, and belt. Made in Germany! - Vemo - Audi Volkswagen

Includes thermostat, water pump, gasket, and belt. Made in Germany!

Brand:
Vemo - Corporate Logo
ES#:
4039367
Mfg#:
06L121111H
Ships on Nov 11, 2026
ON SALE!
$376.99

This product was last offered at the strikethrough price on
07-14-2026

$365.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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 3 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

Thermostat / Water Pump Replacement Kit

ES#4829986 - 06L121111PKT - Thermostat / Water Pump Replacement Kit - Includes necessary parts to replace the thermostat and water pump - Assembled By ECS - Audi Volkswagen

Includes necessary parts to replace the thermostat and water pump 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4829986
Mfg#:
06L121111PKT
In Stock at Vendor
$604.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Metal Cooling Hose Adapter/Breather Assembly

ES#4715589 - 06K121143PRM - Metal Cooling Hose Adapter/Breather Assembly - Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! - URO - Audi Volkswagen

Mounts in cylinder head for coolant hose connection. Upgrade from the factory brittle plastic! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4715589
Mfg#:
06K121143PRM
In Stock
$26.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Coolant Flanges & Parts

Replace a cracked or failed coolant flange with a brand new coolant flange to stop those leaks!

Let us help you find the parts that fit your Audi

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