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Audi A4 Engine Coolant Flanges & Parts

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Coolant flange

ES#4020877 - 06E121168B - Coolant flange - Located on the engine block - Genuine Volkswagen Audi - Audi

Located on the engine block

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4020877
Mfg#:
06E121168B
Ships in 1-2 days
10% off MSRP

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

$70.99

This product was last offered at the strikethrough price on
08-31-2026

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#280019 - 06B121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x3.5mm - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x3.5mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280019
Mfg#:
06B121119B
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.

$5.76

This product was last offered at the strikethrough price on
07-23-2026

$5.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#2801336 - N90687201 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 40x12 - Rein - Audi Volkswagen

Ensure a leak free installation. 40x12 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
40x12 spring clamp used in many places on your European vehicles cooling system

Brand:
Rein - Corporate Logo
ES#:
2801336
Mfg#:
N90687201
In Stock at Vendor
ON SALE! SAVE 14%
$8.99

This product was last offered at the strikethrough price on
08-31-2026

$7.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Flange

ES#4615970 - 06D121132C - Coolant Hose Flange - Located rear engine, this flange houses the temp sensor - Febi - Audi

Located rear engine, this flange houses the temp sensor We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4615970
Mfg#:
06D121132C
Ships in 2 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen head Bolt (4mm) - Priced Each

ES#2770175 - N10196103 - Allen head Bolt (4mm) - Priced Each - Install new hardware with your new parts. Black oxide coated, M6x18. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Install new hardware with your new parts. Black oxide coated, M6x18. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2770175
Mfg#:
N10196103
In Stock
ON SALE! SAVE 25%
$1.99

This product was last offered at the strikethrough price on
07-28-2026

$1.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#4415626 - 06H121132H - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - URO - Audi

Located at the rear of cylinder head, includes o-rings 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4415626
Mfg#:
06H121132H
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Flange

ES#4766156 - 06D121132C - Coolant Hose Flange - Located rear engine, this flange houses the temp sensor - Bremmen Parts - Audi

Located rear engine, this flange houses the temp sensor 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766156
Mfg#:
06D121132C
In Stock
ON SALE! SAVE 36%
$17.99

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

$11.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Cylinder Head Cooling Flange

ES#4070439 - 462-121-132b5KT - Cast Aluminum Cylinder Head Cooling Flange - Located on the back of the cylinder head - iABED Industries - Audi Volkswagen

Located on the back of the cylinder head For vehicles with AWM engine code only

Brand:
iABED Industries - Corporate Logo
ES#:
4070439
Mfg#:
462-121-132B5KT
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B7 2.0T Cast Coolant Flange Replacement Kit - With Coolant

ES#4659388 - 06D121132CKT6 - Audi B7 2.0T Cast Coolant Flange Replacement Kit - With Coolant - Cure the common coolant leak coming from the back of your engine compartment once and for all! - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment once and for all! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4659388
Mfg#:
06D121132CKT6
Ships on Nov 16, 2026
ON SALE!
$153.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling Flange Replacement Kit

ES#2804122 - 058121132KT1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with AEB & ATW engine codes with D-shaped coolant temp sensor

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804122
Mfg#:
058121132KT1
Ships in 3 Business Days
ON SALE! SAVE 15%
$54.99

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

$46.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#2582070 - 06B121132E - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - Vaico - Audi

Located at the rear of cylinder head, includes o-rings We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2582070
Mfg#:
06B121132E
Ships in 2 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2649713 - 06B121132EKT3 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Genuine Volkswagen Audi - Audi

Cure the common coolant leak coming from the back of your engine compartment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2649713
Mfg#:
06B121132EKT3
In Stock
$132.99

This product was last offered at the strikethrough price on
08-11-2026

$121.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#469440 - N90280904 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x22 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x22 Engine codes AEB & ATW. Secures the thermostat housing to the water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469440
Mfg#:
N90280904
Ships in 3 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2865688 - 030121121B - Thermostat Housing - Located on the water pump assembly - Febi - Audi Volkswagen

Located on the water pump assembly We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865688
Mfg#:
030121121B
In Stock
$9.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin - Kit

ES#5491165 - 06A919501AKT - Coolant Temperature Sensor - 2 Pin - Kit - Includes Retaining Clip & O-Ring - Assembled By ECS - Audi

Includes Retaining Clip & O-Ring 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5491165
Mfg#:
06A919501AKT
In Stock
ON SALE! SAVE 25%
$21.99

This product was last offered at the strikethrough price on
07-10-2026

$16.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hard Coolant Pipe

ES#280424 - 06D121065L - Hard Coolant Pipe - Located between main coolant flange hard pipe and thermostat housing - Genuine Volkswagen Audi - Audi

Located between main coolant flange hard pipe and thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280424
Mfg#:
06D121065L
Ships in 4 Business Days
10% off MSRP

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

$101.99

This product was last offered at the strikethrough price on
08-31-2026

$91.99 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!

Let us help you find the parts that fit your Audi

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