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Volkswagen Passat B4 TDI

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Volkswagen Passat B4 TDI Engine Cooling Parts

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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 For Our 25th Anniversary Sweepstakes!
Universal fitment design - modifications may be necessary to run this cooler

Brand:
CSF - Corporate Logo
ES#:
5470103
Mfg#:
8371
Ships in 4 Business Days
$499.00 USD
Free Shipping

Cooling Hose Flange

ES#3190098 - 902-986 - Cooling Hose Flange - Includes sealing o-ring. - Dorman - Volkswagen

Includes sealing o-ring.

Brand:
Dorman - Corporate Logo
ES#:
3190098
Mfg#:
902-986
Ships in 5 Business Days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87°C

ES#2800962 - 056121113D - Thermostat - 87C - Keep your car running at the proper temperature. Does not include o-ring - Meistersatz - Audi Volkswagen

Keep your car running at the proper temperature. Does not include o-ring

Brand:
Meistersatz - Corporate Logo
ES#:
2800962
Mfg#:
056121113D
Ships in 4 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Oil Cooler

ES#3491991 - 096409061E - Transmission Oil Cooler - Nissens - Volkswagen

We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
3491991
Mfg#:
096409061E
Ships in 7 Business Days
$153.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

ES#2803169 - 028121053Q - Oil Cooler Hose - Runs from water pump to the oil cooler - Rein - Volkswagen

Runs from water pump to the oil cooler 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803169
Mfg#:
028121053Q
In Stock at Vendor
$34.99

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

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange

ES#2877940 - 026121144E - Coolant Flange - Located on the driver side of the cylinder head - Vaico - Audi Volkswagen

Located on the driver side of the cylinder head We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2877940
Mfg#:
026121144E
In Stock at Vendor
$3.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Adapter

ES#2878152 - 037121619A - Coolant Hose Adapter - Located between the thermostat housing and the lower radiator hose - Vaico - Volkswagen

Located between the thermostat housing and the lower radiator hose We Price Match - Give Us A Call or Chat!
For vehicles with AAZ and 1Z engine codes

Brand:
Vaico - Corporate Logo
ES#:
2878152
Mfg#:
037121619A
In Stock at Vendor
$43.99

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

$42.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

Runs from water pump to the oil cooler

Brand:
Burgaflex - Corporate Logo
ES#:
4349477
Mfg#:
028121053Q
Ships in 9 Business Days
$14.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87°C

Keep your car running at the proper temperature. Does not include o-ring We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812955
Mfg#:
056121113D
Ships in 2 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Flange

Includes sealing o-ring. AAZ engine code only.

Brand:
Meistersatz - Corporate Logo
ES#:
4150825
Mfg#:
068121132
Ships in 4 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Flange

Includes sealing o-ring. AAZ engine code only.

Brand:
MTC - Corporate Logo
ES#:
2090870
Mfg#:
068121132B
Ships in 10 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

Runs from water pump to the oil cooler

Brand:
Gates - Corporate Logo
ES#:
3234682
Mfg#:
028121053Q
Ships on Aug 7, 2026
$46.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler O-Ring

ES#5340490 - 038117070 - Oil Cooler O-Ring - O-Ring between cover & oil cooler. 62.8mm - Elring - Volkswagen

O-Ring between cover & oil cooler. 62.8mm 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340490
Mfg#:
038117070
Special Order: No Guaranteed ETA
$3.99 USD
Free Shipping
on orders $49 and up

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

Thermo Sensor

ES#2871084 - 357919501 - Thermo Sensor - Febi - Volkswagen

2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2871084
Mfg#:
357919501
Special Order: No Guaranteed ETA
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Flange

ES#2866127 - 068121132B - Cooling Hose Flange - Includes sealing o-ring. - Febi - Volkswagen

Includes sealing o-ring. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
AAZ engine code only.

Brand:
Febi - Corporate Logo
ES#:
2866127
Mfg#:
068121132B
Special Order: No Guaranteed ETA
$14.99 USD
Free Shipping
on orders $49 and up
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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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