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Volkswagen Passat B7 2.5L

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Volkswagen Passat B7 2.5L Engine Cooling Parts

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Expansion Tank Cap - Black

ES#4004591 - 5Q0121321 - Expansion Tank Cap - Black - Keep proper pressure in your coolant system - Rein - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4004591
Mfg#:
5Q0121321
In Stock
ON SALE!
$16.99

This product was last offered at the strikethrough price on
06-29-2026

$16.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Pressure Tester

ES#2748355 - VAG1274/8BKT - Cooling System Pressure Tester - Test for cooling system leaks - Genuine Volkswagen Audi - Volkswagen

Test for cooling system leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2748355
Mfg#:
VAG1274/8BKT
Ships on Aug 12, 2026
$300.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#2535131 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - URO - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535131
Mfg#:
N90316802
In Stock
$1.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 10 Row

ES#2764105 - MM0C10 - Universal Oil Cooler - 10 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2764105
Mfg#:
MM0C10
In Stock
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp Pliers Set

ES#2949329 - SGT19780 - Hose Clamp Pliers Set - Ideal tool for less fluid loss while doing any automotive work - S&G Tool Aid - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Ideal tool for less fluid loss while doing any automotive work affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
S&G Tool Aid - Corporate Logo
ES#:
2949329
Mfg#:
SGT19780
Ships in 6 Business Days
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Supply Tube

ES#285947 - 07K121065P - Coolant Supply Tube - Connects the upper reservior hose to the upper radiator hose - Genuine Volkswagen Audi - Volkswagen

Connects the upper reservior hose to the upper radiator hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285947
Mfg#:
07K121065P
Ships in 2 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.

$264.99

This product was last offered at the strikethrough price on
02-26-2026

$246.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3235770 - 5C0122051A - Radiator Hose - Lower - Lower Radiator return hose - Gates - Volkswagen

Lower Radiator return hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Gates - Corporate Logo
ES#:
3235770
Mfg#:
5C0122051A
In Stock at Vendor
$247.99

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

$240.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Return Hose

ES#2064744 - 5C0122073A - Heater Core Return Hose - Connects rear thermostat housing to heater core - Genuine Volkswagen Audi - Volkswagen

Connects rear thermostat housing to heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2064744
Mfg#:
5C0122073A
In Stock
Limited Qty Sale
$268.99

This product was last offered at the strikethrough price on
06-15-2026

$239.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Replacement Kit

ES#2792991 - 07K121011BKT7 - Water Pump Replacement Kit - Featuring Hepu water pump and Continental drive belts - Assembled By ECS - Volkswagen

Featuring Hepu water pump and Continental drive belts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2792991
Mfg#:
07K121011BKT7
Ships in 3 Business Days
ON SALE!
$222.99

This product was last offered at the strikethrough price on
01-26-2026

$216.86 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator

ES#3545365 - 3705 - Radiator - Keep your engine running cool with a new radiator - CSF - Volkswagen

Keep your engine running cool with a new radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
CSF - Corporate Logo
ES#:
3545365
Mfg#:
3705
Ships in 3 Business Days
$101.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Union

ES#4352640 - 06L121131 - Water Pump Union - Connects water pump module to oil cooler - Rein - Audi Volkswagen

Connects water pump module to oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4352640
Mfg#:
06L121131
In Stock
ON SALE! SAVE 17%
$6.99

This product was last offered at the strikethrough price on
06-29-2026

$5.81 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Quick Coupler

ES#4810736 - 1K0122291C - Quick Coupler - Connects upper radiator hose to return line - Rein - Audi Volkswagen

Connects upper radiator hose to return line affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4810736
Mfg#:
1K0122291C
Ships on Jul 21, 2026
Auto Notify
ON SALE! SAVE 27%
$7.99

This product was last offered at the strikethrough price on
06-29-2026

$5.80 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Pressure Tester

ES#2748353 - VAG1274/B - Cooling System Pressure Tester - Used to pressurize the cooling system to check for leaks - Genuine Volkswagen Audi - Volkswagen

Used to pressurize the cooling system to check for leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used with adapter only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2748353
Mfg#:
VAG1274/B
Special Order: No Guaranteed ETA
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

In-line Thermostat

ES#315286 - 1K0121113A - In-line Thermostat - Ensures proper coolant flow to the automatic transmission oil cooler - Genuine Volkswagen Audi - Volkswagen

Ensures proper coolant flow to the automatic transmission oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315286
Mfg#:
1K0121113A
In Stock
ON SALE!
$67.99

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

$64.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Clamp - Priced Each

ES#259720 - n90687101 - Spring Clamp - Priced Each - Install new hardware with your new parts. 32x12 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 32x12 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259720
Mfg#:
N90687101
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Replacement Kit

ES#2792992 - 07K121011BKT8 - Water Pump Replacement Kit - Featuring URO water pump and Mitsuboshi drive belts - Assembled By ECS - Volkswagen

Featuring URO water pump and Mitsuboshi drive belts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2792992
Mfg#:
07K121011BKT8
Back Ordered
ON SALE!
$183.99

This product was last offered at the strikethrough price on
01-26-2026

$176.70 USD
Free Shipping
This product is lifetime replacement eligible Partial 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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