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Volkswagen Passat B6 4 Motion 3.6L Engine Coolant Flanges & Parts

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ES#2812945 - 03H121121C - Thermostat Cover - Outlet for coolant from the thermostat - Hamburg Tech - Audi Volkswagen

Outlet for coolant from the thermostat We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812945
Mfg#:
03H121121C
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#275814 - 03H121133 - Cylinder Head Cooling Flange - Located on the side of the engine attached to the thermostat housing - Genuine Volkswagen Audi - Audi Volkswagen

Located on the side of the engine attached to the thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275814
Mfg#:
03H121133
Ships in 1 day
12% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
10-05-2026

$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4045693 - 03H121117APRM - Aluminum Thermostat Housing - Common point of failure or leaking for the cooling system. Features a superior aluminum construction over the factory plastic unit. - URO Premium - Audi Volkswagen

Common point of failure or leaking for the cooling system. Features a superior aluminum construction over the factory plastic unit. 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
URO Premium - Corporate Logo
ES#:
4045693
Mfg#:
03H121117APRM
Ships on Dec 3, 2026
$111.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#275812 - 03H121121C - Thermostat Cover - Outlet for coolant from the thermostat - Genuine Volkswagen Audi - Audi Volkswagen

Outlet for coolant from the thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275812
Mfg#:
03H121121C
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.

$69.99

This product was last offered at the strikethrough price on
10-05-2026

$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5446936 - 03H121145A-AL - Aluminum Coolant Pipe - Hose connection found on the back of the block - Hamburg Tech - Volkswagen

Hose connection found on the back of the block

Brand:
Hamburg Tech - Corporate Logo
ES#:
5446936
Mfg#:
03H121145A-AL
In Stock
$30.99 USD
Free Shipping
on orders $49 and up
ES#275811 - 03H121117A - Thermostat Housing - Common point of failure or leaking for the cooling system - Genuine Volkswagen Audi - Audi Volkswagen

Common point of failure or leaking for the cooling system For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275811
Mfg#:
03H121117A
Ships in 1 day
12% off MSRP

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

$209.99

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

$183.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
9% 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
10-05-2026

$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2663663 - WHT005190 - Sealing O-Ring - Found on the thermostat housing assembly. 37.5x4x6 - Genuine Volkswagen Audi - Audi Volkswagen

Found on the thermostat housing assembly. 37.5x4x6

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2663663
Mfg#:
WHT005190
Ships in 1 day
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#275817 - 03H121145A - Coolant pipe - Hose connection found on the back of the block - Genuine Volkswagen Audi - Volkswagen

Hose connection found on the back of the block

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275817
Mfg#:
03H121145A
Ships in 1 day
12% 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
10-05-2026

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5425901 - 03H121117A - Thermostat Housing - Common point of failure or leaking for the cooling system - Hamburg Tech - Audi Volkswagen

Common point of failure or leaking for the cooling system For vehicles with VIN from 3C-7-120 001 only, split is in the 2007 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
5425901
Mfg#:
03H121117A
Ships in 1 Business Day
$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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 Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4446147
Mfg#:
03H121133
Ships on Dec 3, 2026
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4932881 - 95510623100PRM - Cooling Hose Flange - Upgraded Aluminum - Ditch the failure-prone factory plastic and bulletproof your cooling system. - URO Premium - Audi Volkswagen Porsche

Ditch the failure-prone factory plastic and bulletproof your cooling system. 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
4932881
Mfg#:
95510623100PRM
Ships in 1 Business Day
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3546691 - 03h121091KT - Coolant Pipe Kit - Includes gasket and hardware - Genuine Volkswagen Audi - Volkswagen

Includes gasket and hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3546691
Mfg#:
03H121091KT
Ships in 1 day
$61.99

This product was last offered at the strikethrough price on
10-05-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#472388 - WHT000862 - O-Ring - Priced Each - Used for sealing coolant passages. 29x3.5mm - Genuine Volkswagen Audi - Volkswagen

Used for sealing coolant passages. 29x3.5mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472388
Mfg#:
WHT000862
In Stock
Limited Qty Sale
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4415619 - 03H121131A - Coolant Flange - Adapter found on the end of the thermostat housing - URO - Audi Volkswagen

Adapter found on the end of the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4415619
Mfg#:
03H121131A
Ships in 1 Business Day
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#275801 - 03H121041B - Coolant pipe gasket - For the hose connection found on the back of the block - Genuine Volkswagen Audi - Volkswagen

For the hose connection found on the back of the block

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275801
Mfg#:
03H121041B
In Stock
Limited Qty Sale
$4.99 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!

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