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 Passat Cylinder Head Cooling Flanges

Sort By
Filter By
Return to Top

Cylinder Head Cooling Flange

ES#4446147 - 03H121133 - Cylinder Head Cooling Flange - Located on the side of the engine attached to the thermostat housing - URO - Audi Volkswagen

Located on the side of the engine attached to the thermostat housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4446147
Mfg#:
03H121133
Ships on Aug 13, 2026
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Glow Plug Harness - Priced Each

Electrical connection to coolant glow plugs Coolant Glow Plug Harness - 3 required

Brand:
Vemo - Corporate Logo
ES#:
4817866
Mfg#:
028971782A
Ships on Nov 12, 2026
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant flange

ES#275813 - 03H121131A - Coolant flange - Adapter found on the end of the thermostat housing - Genuine Volkswagen Audi - Volkswagen

Adapter found on the end of the thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275813
Mfg#:
03H121131A
Ships in 1 day
7% off MSRP

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

$56.99

This product was last offered at the strikethrough price on
07-21-2026

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

Autoworx Mk2 16v Side coolant flange

ES#4348597 - Aut-16v-cf3 - Autoworx Mk2 16v Side coolant flange - Solid Billet 16v Coolant Flange for the side of the head. Single outlet setup. Oring included. - Autobahn Autoworx - Volkswagen

Solid Billet 16v Coolant Flange for the side of the head. Single outlet setup. Oring included.

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4348597
Mfg#:
AUT-16V-CF3
Special Order: No Guaranteed ETA
$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Autoworx Mk1 Mk2 16v early side coolant flange

ES#4348596 - Aut-16v-cf1 - Autoworx Mk1 Mk2 16v early side coolant flange - Early style two port 16v coolant flange located on drivers side of the head. - Autobahn Autoworx - Volkswagen

Early style two port 16v coolant flange located on drivers side of the head.

Brand:
Autobahn Autoworx - Corporate Logo
ES#:
4348596
Mfg#:
AUT-16V-CF1
Special Order: No Guaranteed ETA
$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4057465 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Victor Reinz - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm

Brand:
Victor Reinz - Corporate Logo
ES#:
4057465
Mfg#:
N90316802
Ships in 2 Business Days
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#4765838 - 07K121133E - Coolant Flange - Located on the driver side of the cylinder head - URO - Audi Volkswagen

Located on the driver side of the cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4765838
Mfg#:
07K121133E
Back Ordered
Auto Notify
$7.99 USD
Free Shipping
on orders $49 and up

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 coolant flange to the cylinder head.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469440
Mfg#:
N90280904
Ships in 2 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4070442 - 058121687 - Sealing O-Ring - Priced Each - Seals the coolant flange to the water supply pipe. 31.5x3.65 - DPH - Audi Volkswagen

Seals the coolant flange to the water supply pipe. 31.5x3.65

Brand:
DPH - Corporate Logo
ES#:
4070442
Mfg#:
058121687
Ships in 1-2 days
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug - Priced Each

ES#333289 - 357121140 - Coolant Flange Plug - Priced Each - Prevent leaks with a new plug - Genuine Volkswagen Audi - Audi Volkswagen

Prevent leaks with a new plug

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
333289
Mfg#:
357121140
In Stock
ON SALE!
$11.99

This product was last offered at the strikethrough price on
06-25-2026

$11.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug Kit - Priced Each

ES#11965 - 357121140 - Coolant Flange Plug Kit - Priced Each - Includes the plug, o-ring and securing clip - MTC - Audi Volkswagen

Includes the plug, o-ring and securing clip

Brand:
MTC - Corporate Logo
ES#:
11965
Mfg#:
357121140
In Stock
ON SALE!
$3.05

This product was last offered at the strikethrough price on
06-25-2026

$2.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Glow Plug Cable Repair Kit

Electrical connection to coolant glow plug Coolant Glow Plug Harness - 3 required

Brand:
SenCom - Corporate Logo
ES#:
5446466
Mfg#:
20517GKB
Ships on Aug 11, 2026
$23.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

Located on the driver side of the cylinder head

Brand:
OEM - Corporate Logo
ES#:
4714972
Mfg#:
07K121133E
In Stock at Vendor
$17.99

This product was last offered at the strikethrough price on
03-14-2026

$15.99 USD
Free Shipping
on orders $49 and up

Sealing O-Ring - Priced Each

ES#277620 - 058121687 - Sealing O-Ring - Priced Each - Seals the coolant flange to the water supply pipe. 31.5x3.65 - Genuine Volkswagen Audi - Audi Volkswagen

Seals the coolant flange to the water supply pipe. 31.5x3.65

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277620
Mfg#:
058121687
Ships in 1 day
11% off MSRP

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

$13.34

This product was last offered at the strikethrough price on
07-06-2026

$11.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#270399 - 026121144E - Coolant Flange - Located on the driver side of the cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Located on the driver side of the cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
270399
Mfg#:
026121144E
Ships in 1 day
10% off MSRP

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

$47.99

This product was last offered at the strikethrough price on
07-21-2026

$42.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

ES#4714621 - 06J121132G - Cylinder Head Cooling Flange - Common area for coolant leaks - Located on cylinder head - URO - Audi Volkswagen

Common area for coolant leaks - Located on cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits vehicles with CCTA engine code only

Brand:
URO - Corporate Logo
ES#:
4714621
Mfg#:
06J121132G
Ships in 1 Business Day
ON SALE!
$10.99

This product was last offered at the strikethrough price on
06-25-2026

$10.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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