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

Volkswagen MK5 Engine Coolant Flanges & Parts

Sort By
Filter By
Return to Top

O-Ring - Priced Each

ES#2801213 - N10139201 - O-Ring - Priced Each - O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55 - Meistersatz - Audi Volkswagen

O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55

Brand:
Meistersatz - Corporate Logo
ES#:
2801213
Mfg#:
N10139201
In Stock at Vendor
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#2586934 - 032121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place - Rein - Audi Volkswagen

Secures the coolant temperature sensor in place 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2586934
Mfg#:
032121142
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#285951 - 07K121119A - Thermostat O-Ring - Recommended to be replaced when replacing a thermostat. 63x3mm - Genuine Volkswagen Audi - Volkswagen

Recommended to be replaced when replacing a thermostat. 63x3mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285951
Mfg#:
07K121119A
Ships in 1 Business Day
63% off MSRP

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

$18.99

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

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

Common area for coolant leaks - Located on cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5470765
Mfg#:
06J121132G
Ships in 3 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#3659191 - 07K121119A - Thermostat O-Ring - Recommended to be replaced when replacing a thermostat. 63x3mm - Mahle - Volkswagen

Recommended to be replaced when replacing a thermostat. 63x3mm

Brand:
Mahle - Corporate Logo
ES#:
3659191
Mfg#:
07K121119A
Ships in 1 day
$7.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#2801137 - 021121119A - Thermostat Housing O-Ring - O-Ring between thermostat housing and cylinder head - Meistersatz - Audi Volkswagen

O-Ring between thermostat housing and cylinder head

Brand:
Meistersatz - Corporate Logo
ES#:
2801137
Mfg#:
021121119A
Ships in 3 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#471623 - N91025201 - Hex Bolt - Priced Each - Install new hardware with your new parts. 6x30 - Genuine Volkswagen Audi - Volkswagen

Install new hardware with your new parts. 6x30

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471623
Mfg#:
N91025201
Ships in 1 day
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#5373591 - 021121119A - Thermostat Housing O-Ring - O-Ring between thermostat housing and cylinder head - Ajusa - Audi Volkswagen

O-Ring between thermostat housing and cylinder head

Brand:
Ajusa - Corporate Logo
ES#:
5373591
Mfg#:
021121119A
Ships in 3 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer

ES#5373894 - 07K121149 - Sealing Washer - Used with coolant flange and thrust ring to create a leak free seal - Meistersatz - Audi Volkswagen

Used with coolant flange and thrust ring to create a leak free seal

Brand:
Meistersatz - Corporate Logo
ES#:
5373894
Mfg#:
07K121149
Ships in 3 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

Located on the driver side of the cylinder head

Brand:
Gates - Corporate Logo
ES#:
4849653
Mfg#:
07K121133E
In Stock at Vendor
$61.99

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

$60.99 USD
Free Shipping
on orders $49 and up

Coolant Flange

Located on the driver side of the cylinder head

Brand:
MotoRad
ES#:
4849657
Mfg#:
07K121133E
In Stock at Vendor
$42.99

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

$41.99 USD
Free Shipping
on orders $49 and up

Thermostat Housing

Common point of failure or leaking for the cooling system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5456694
Mfg#:
022121117C
Ships on Sep 9, 2026
Auto Notify
ON SALE! SAVE 20%
$34.99

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

$27.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer

ES#5340453 - 07K121149 - Sealing Washer - Used with coolant flange and thrust ring to create a leak free seal - Elring - Audi Volkswagen

Used with coolant flange and thrust ring to create a leak free seal 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340453
Mfg#:
07K121149
Special Order: No Guaranteed ETA
ON SALE! SAVE 26%
$3.99

This product was last offered at the strikethrough price on
08-14-2026

$2.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340675
Mfg#:
N90316802
Special Order: No Guaranteed ETA
ON SALE! SAVE 39%
$2.99

This product was last offered at the strikethrough price on
08-14-2026

$1.83 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

Ensure a proper seal when installing your new thermostat 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340689
Mfg#:
N90136802
Special Order: No Guaranteed ETA
ON SALE! SAVE 52%
$1.99

This product was last offered at the strikethrough price on
08-14-2026

$0.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit

ES#5492870 - 06F121132H - Cooling System Refresh Kit - Plastic coolant flange to cure the infamous rear cylinder head coolant leak, resolve mysterious low-coolant warnings, and keep your VAG 2.0T running at the perfect temperature. - Febi - Audi Volkswagen

Plastic coolant flange to cure the infamous rear cylinder head coolant leak, resolve mysterious low-coolant warnings, and keep your VAG 2.0T running at the perfect temperature. 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with BPY engine code only

Brand:
Febi - Corporate Logo
ES#:
5492870
Mfg#:
06F121132H
Special Order: No Guaranteed ETA
$30.99 USD
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 Volkswagen

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