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Audi Engine Coolant Flanges & Parts

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Coolant Shut Off Valve

ES#4871918 - 06M121678H - Coolant Shut Off Valve - Controls the circulation of coolant within the engine via vacuum - Bremmen Parts - Audi

Controls the circulation of coolant within the engine via vacuum 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871918
Mfg#:
06M121678H
In Stock
ON SALE! SAVE 17%
$118.99

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

$98.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Replacement Kit

ES#4023737 - CHS0648 - Coolant Flange Replacement Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. - Rein - Audi

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4023737
Mfg#:
CHS0648
In Stock
$225.99

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

$165.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cast Aluminum Coolant Flange Upgrade Kit

ES#4753366 - 06d121132C-KT - ECS Cast Aluminum Coolant Flange Upgrade Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. Includes heavy duty cast aluminum coolant flange. - ECS - Audi

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. Includes heavy duty cast aluminum coolant flange. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4753366
Mfg#:
06D121132C-KT
Back Ordered
ON SALE! SAVE 39%
$223.99

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

$136.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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

Cooling System Bypass Line Adapter

ES#2988646 - 059121737AM - Cooling System Bypass Line Adapter - Bolts to the oil cooler - Genuine Volkswagen Audi - Audi Volkswagen

Bolts to the oil cooler

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2988646
Mfg#:
059121737AM
In Stock
11% off MSRP

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

$159.99

This product was last offered at the strikethrough price on
07-25-2026

$142.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Aluminum Coolant Hose Flange

ES#4907691 - 06D121132C - Upgraded Aluminum Coolant Hose Flange - Located rear engine, this flange houses the temp sensor - Rein - Audi

Located rear engine, this flange houses the temp sensor 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
4907691
Mfg#:
06D121132C
In Stock
$44.99 USD
Free Shipping
on orders $49 and up

ECS Billet 24v Aluminum Water Pipe - Black

ES#2848080 - 003285ECS0101 - ECS Billet 24v Aluminum Water Pipe - Black - Designed to be the last water pipe you'll need to replace - ECS - Audi Volkswagen

Designed to be the last water pipe you'll need to replace 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2848080
Mfg#:
003285ECS0101
In Stock
ON SALE! SAVE 10%
$135.99

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

$123.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Replacement Kit

ES#4017860 - CHS0647 - Coolant Flange Replacement Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. - Rein - Audi Volkswagen

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Engine code AMU

Brand:
Rein - Corporate Logo
ES#:
4017860
Mfg#:
CHS0647
Ships in 1 Business Day
$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing Kit

ES#3553466 - 462-121-vr-24vKT - Cast Aluminum Thermostat Housing Kit - Replace your inferior plastic housings - iABED Industries - Audi Volkswagen

Replace your inferior plastic housings Modification to water pipe may be required. Please see description for details.

Brand:
iABED Industries - Corporate Logo
ES#:
3553466
Mfg#:
462-121-VR-24VKT
Back Ordered
Auto Notify
$251.99

This product was last offered at the strikethrough price on
04-16-2026

$250.99 USD
Free Shipping
on orders $49 and up
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 17, 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

Integrated Thermostat Housing Assembly

ES#4900436 - 946-189 - Integrated Thermostat Housing Assembly - Includes thermostat and housing. - MotoRad - Audi

Includes thermostat and housing.

Brand:
MotoRad
ES#:
4900436
Mfg#:
946-189
In Stock at Vendor
$504.63

This product was last offered at the strikethrough price on
02-16-2026

$484.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing with Gasket

ES#4342251 - 022121117CS1 - Thermostat Housing with Gasket - Common point of failure or leaking for the cooling system - Febi - Audi Volkswagen

Common point of failure or leaking for the cooling system 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4342251
Mfg#:
022121117CS1
In Stock
$66.99

This product was last offered at the strikethrough price on
04-13-2026

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

Shouldered Nut - Priced Each

ES#466552 - N01508210 - Shouldered Nut - Priced Each - Install new hardware with your new parts. M6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466552
Mfg#:
N01508210
In Stock
3% off MSRP

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

$3.55

This product was last offered at the strikethrough price on
07-25-2026

$3.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Supply

ES#4812552 - 06E121045BD - 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!
Up to the 2012 model year

Brand:
Rein - Corporate Logo
ES#:
4812552
Mfg#:
06E121045BD
Ships in 1 Business Day
$93.99 USD
Free Shipping
on orders $49 and up

hex bolt - priced each

ES#2540073 - N10156207 - hex bolt - priced each - Install new hardware with your new parts. M6x30 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x30

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2540073
Mfg#:
N10156207
In Stock
2% off MSRP

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

$3.09

This product was last offered at the strikethrough price on
07-25-2026

$3.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Thermostat Housing

ES#3553457 - 462-121-VR47C - Cast Aluminum Thermostat Housing - Replace your inferior plastic housing - iABED Industries - Audi Volkswagen

Replace your inferior plastic housing Modification to water pipe may be required. Please see description for details.

Brand:
iABED Industries - Corporate Logo
ES#:
3553457
Mfg#:
462-121-VR47C
Back Ordered
Auto Notify
$169.99 USD
Free Shipping
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!

Other Audi Engine Coolant Flanges & Parts

Let us help you find the parts that fit your Audi

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

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