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Volkswagen Passat B4 VR6 12v

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Volkswagen Passat B4 VR6 12v Engine Cooling Parts

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Cooling Flange

ES#2709726 - 037121144J - Cooling 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!

Brand:
URO - Corporate Logo
ES#:
2709726
Mfg#:
037121144J
Ships in 1 Business Day
$4.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug - 36mm

ES#2090865 - 059103113 - Freeze Plug - 36mm - Keep your engine block sealed - MTC - Audi Volkswagen

Keep your engine block sealed

Brand:
MTC - Corporate Logo
ES#:
2090865
Mfg#:
059103113
Ships in 9 Business Days
$1.01 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#2090974 - 1H0121321C - Expansion Tank Cap - Keep proper pressure in your coolant system - MTC - Volkswagen

Keep proper pressure in your coolant system

Brand:
MTC - Corporate Logo
ES#:
2090974
Mfg#:
1H0121321C
Ships in 9 Business Days
$3.05 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#2748888 - 1H0121321A - Expansion Tank Cap - Replacement cap for your broken or lost piece - MTC - Volkswagen

Replacement cap for your broken or lost piece

Brand:
MTC - Corporate Logo
ES#:
2748888
Mfg#:
1H0121321A
Ships in 9 Business Days
$2.99 USD
Free Shipping
on orders $49 and up

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

CSF Universal Large Single-Pass Cooler

ES#5470103 - 8371 - CSF Universal Large Single-Pass Cooler - Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. - CSF - Audi BMW Volkswagen Mercedes Benz MINI

Universal cooler used for: engine oil, transmission oil, power-steering, differential oil, and as a water/coolant heat exchanger. 2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 3 Business Days
$499.00 USD
Free Shipping

Thermostat - 87C

ES#4810572 - 078121113F - Thermostat - 87C - Prevent overheating and premature engine wear - Rein - Audi Volkswagen

Prevent overheating and premature engine wear 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4810572
Mfg#:
078121113F
Ships in 3 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#5515726 - 251965561B - Auxiliary Water Pump - Maintain proper coolant circulation through your heater core and secondary cooling loops while protecting your engine against post-shutdown heat soak. - Rein - Volkswagen

Maintain proper coolant circulation through your heater core and secondary cooling loops while protecting your engine against post-shutdown heat soak. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5515726
Mfg#:
251965561B
Ships in 3 Business Days
$97.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

ES#4220573 - 075121113D - Thermostat - 80C - Does not include sealing O-Ring - Rein - Audi Volkswagen

Does not include sealing O-Ring 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4220573
Mfg#:
075121113D
Ships in 3 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch (91-102°C) - 3 Pin

ES#4872634 - 191959481A - Auxiliary Fan Switch (91-102C) - 3 Pin - Located on the lower side of the radiator - Vemo - Audi Volkswagen

Located on the lower side of the radiator

Brand:
Vemo - Corporate Logo
ES#:
4872634
Mfg#:
191959481A
Ships in 1 Business Day
$16.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VR6 12v Thermostat Housing & Cover Refresh Kit

Stop annoying VR6 coolant leaks. Replace your brittle, warped thermostat housing and matching cover with this direct-fit OEM refresh kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482688
Mfg#:
021121121A1KT
Ships in 1 Business Day
$53.99

This product was last offered at the strikethrough price on
08-28-2026

$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

From oil cooler to plastic bypass pipe

Brand:
Burgaflex - Corporate Logo
ES#:
4349475
Mfg#:
021121058A
Ships in 8 Business Days
$4.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 80°C

Does not include sealing O-Ring

Brand:
Meistersatz - Corporate Logo
ES#:
2800945
Mfg#:
075121113D
Ships in 3 Business Days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug Kit (Plug, O-Ring & Clip)

Seal off unused coolant temperature sensor ports or auxiliary distribution outlets on your water flange with this complete repair kit. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803315
Mfg#:
037298132B
Ships in 3 Business Days
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87�C

Prevent overheating and premature engine wear

Brand:
Hudson - Corporate Logo
ES#:
3139067
Mfg#:
078121113FOE
Ships in 1 day
$15.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#273610 - 034965561C - Auxiliary Water Pump - Electric water pump - Genuine Volkswagen Audi - Audi Volkswagen

Electric water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
273610
Mfg#:
034965561C
Ships in 4 Business Days
7% off MSRP

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

$372.99

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

$345.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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