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Volkswagen Jetta IV TDI Engine Coolant Flanges & Parts

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Thermostat O-Ring

ES#4034832 - 038121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x4 - Elring - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x4 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4034832
Mfg#:
038121119B
Ships in 3 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

Water Distribution Pipe

ES#2597925 - 1J0121087A - Water Distribution Pipe - Plastic 3-way oulet at lower radiator hose - URO - Audi Volkswagen

Plastic 3-way oulet at lower radiator hose 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Fits ALH with Automatic transmission models only.

Brand:
URO - Corporate Logo
ES#:
2597925
Mfg#:
1J0121087A
Ships in 2 Business Days
$2.99 USD
Free Shipping
on orders $49 and up

Coolant Flange

ES#2535196 - 038121132C - Coolant Flange - Located on the left side of the cylinder head - URO - Volkswagen

Located on the left side of the cylinder head 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code and automatic transmission only

Brand:
URO - Corporate Logo
ES#:
2535196
Mfg#:
038121132C
Ships in 1-2 days
$7.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-RING (36 X 3.15MM)

ES#2800836 - 37121687 - O-RING (36 X 3.15MM) - Meistersatz - Audi Volkswagen

Brand:
Meistersatz - Corporate Logo
ES#:
2800836
Mfg#:
37121687
In Stock at Vendor
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#2878291 - 044121144B - Coolant Flange - Attaches to flange on the cylinder head - Vaico - Volkswagen

Attaches to flange on the cylinder head We Price Match - Give Us A Call or Chat!
For vehicles with BEW engine code and automatic transmission only

Brand:
Vaico - Corporate Logo
ES#:
2878291
Mfg#:
044121144B
Ships in 2 Business Days
$9.99

This product was last offered at the strikethrough price on
04-19-2026

$7.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4872201 - 038121121 - Thermostat Housing - Common point of failure or leaking for the cooling system on your TDI. - URO - Volkswagen

Common point of failure or leaking for the cooling system on your TDI. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
URO - Corporate Logo
ES#:
4872201
Mfg#:
038121121
Ships in 2 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2090839 - 038121121 - Thermostat Housing - Common point of failure or leaking for the cooling system on your TDI. - MTC - Volkswagen

Common point of failure or leaking for the cooling system on your TDI. For vehicles with ALH engine code only

Brand:
MTC - Corporate Logo
ES#:
2090839
Mfg#:
038121121
Back Ordered
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug - Priced Each

ES#2815649 - 357121140 - Coolant Flange Plug - Priced Each - Clip and o-ring sold separately - Hamburg Tech - Audi Volkswagen

Clip and o-ring sold separately We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815649
Mfg#:
357121140
Ships in 2 Business Days
ON SALE! SAVE 20%
$1.99

This product was last offered at the strikethrough price on
09-03-2026

$1.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#3970371 - 044121144B - Coolant Flange - Attaches to flange on the cylinder head - Meyle - Volkswagen

Attaches to flange on the cylinder head 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with BEW engine code and automatic transmission only

Brand:
Meyle - Corporate Logo
ES#:
3970371
Mfg#:
044121144B
Ships on Sep 28, 2026
$7.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#3970165 - 038121121 - Thermostat Housing - Common point of failure or leaking for the cooling system on your TDI. - Meyle - Volkswagen

Common point of failure or leaking for the cooling system on your TDI. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
Meyle - Corporate Logo
ES#:
3970165
Mfg#:
038121121
Ships on Sep 28, 2026
$5.34 USD
Free Shipping
on orders $49 and up

Sealing O-Ring

ES#5340472 - 037121688 - Sealing O-Ring - For left cylinder head cooling flange (50x3.15) - Elring - Volkswagen

For left cylinder head cooling flange (50x3.15) 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5340472
Mfg#:
037121688
Special Order: No Guaranteed ETA
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

For vehicles with ALH engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3646620
Mfg#:
38121121
Special Order: No Guaranteed ETA
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flange With Glow Plug Mounting

ES#5447058 - 028121145B - Flange With Glow Plug Mounting - Holds the glow plugs for the cooling system - Vaico - Volkswagen

Holds the glow plugs for the cooling system For vehicles with manual transmission only

Brand:
Vaico - Corporate Logo
ES#:
5447058
Mfg#:
028121145B
Special Order: No Guaranteed ETA
$71.99 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!

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