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Volkswagen Jetta IV 1.8T

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Volkswagen Jetta IV 1.8T 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! 2X Entries For Our 25th Anniversary Sweepstakes! 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
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Sealing O-Ring - Priced Each

ES#274529 - 037121687 - Coolant Flange Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 36x3.15 - Genuine Volkswagen Audi - Audi Volkswagen

Install a new o-ring for a proper seal. 36x3.15 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a 4-speed automatic or manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274529
Mfg#:
037121687
In Stock
30% off MSRP

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

$7.08

This product was last offered at the strikethrough price on
06-03-2026

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Supply Pipe

ES#279290 - 06A121065AK - Coolant Supply Pipe - Located along top of the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Located along top of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279290
Mfg#:
06A121065AK
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.

$279.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Split Pipe Coolant Fitting

ES#2748757 - 006368ECS01A - Aluminum Split Pipe Coolant Fitting - Replaces the failure prone, plastic coolant split pipe from the turbo & expansion tank to the water pipe hose - ECS - Audi Volkswagen

Replaces the failure prone, plastic coolant split pipe from the turbo & expansion tank to the water pipe hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2748757
Mfg#:
006368ECS01A
In Stock
ON SALE! SAVE 96%
$67.99

This product was last offered at the strikethrough price on
05-02-2026

$2.54 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

Cast Aluminum Thermostat Housing

ES#3470645 - 462-121-121C - Cast Aluminum Thermostat Housing - Common point of failure for the cooling system. Does not include O-ring. - iABED Industries - Volkswagen

Common point of failure for the cooling system. Does not include O-ring. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
iABED Industries - Corporate Logo
ES#:
3470645
Mfg#:
462-121-121C
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#2802189 - 059919501AKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - Rein - Audi Volkswagen

Updated Green sensor with square/round connector. Please check existing sensor color affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802189
Mfg#:
059919501AKT
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#1692 - 1J0121321B - Expansion Tank Cap - Keep proper pressure in your coolant system - Febi - 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! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
1692
Mfg#:
1J0121321B
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

7 Piece Silicone Coolant Hose Kit - Red

ES#1843969 - FMKC005R - 7 Piece Silicone Coolant Hose Kit - Red - Replace your stock rubber hoses with silicone - Forge - Volkswagen

Replace your stock rubber hoses with silicone affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with AWP engine code only

Brand:
Forge - Corporate Logo
ES#:
1843969
Mfg#:
FMKC005R
Back Ordered
$230.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

7 Piece Silicone Coolant Hose Kit - Blue

ES#1843970 - FMKC005B - 7 Piece Silicone Coolant Hose Kit - Blue - Replace your stock rubber hoses with silicone - Forge - Volkswagen

Replace your stock rubber hoses with silicone affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with AWP engine code only

Brand:
Forge - Corporate Logo
ES#:
1843970
Mfg#:
FMKC005B
Back Ordered
$230.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Flush Kit

ES#2784778 - CO0LANTFLUSHKT1 - Cooling System Flush Kit - Keep your cooling system working at its best by keeping it clean and free of rust and scale deposits. Includes new expansion tank cap, flush treatment & G13 coolant. - Assembled By ECS - Audi Volkswagen

Keep your cooling system working at its best by keeping it clean and free of rust and scale deposits. Includes new expansion tank cap, flush treatment & G13 coolant. 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#:
2784778
Mfg#:
CO0LANTFLUSHKT1
In Stock
ON SALE! SAVE 10%
$65.99

This product was last offered at the strikethrough price on
01-03-2026

$59.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Radiator Installation Kit With Radiator Mounts And Hardware

ES#2588189 - 1J0806155EKT1 - Radiator Installation Kit With Radiator Mounts And Hardware - When replacing or reinstalling your radiator do not reuse your old, worn radiator mounts. - Genuine Volkswagen Audi - Volkswagen

When replacing or reinstalling your radiator do not reuse your old, worn radiator mounts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with factory air conditioning

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2588189
Mfg#:
1J0806155EKT1
Ships in 1 day
$113.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2581583 - 050121113CKT1 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Maintain proper operating temperature with a new thermostat, housing and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2581583
Mfg#:
050121113CKT1
In Stock at Vendor
$119.99

This product was last offered at the strikethrough price on
03-18-2026

$114.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#1306802 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Vemo - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
1306802
Mfg#:
050121113C
In Stock
ON SALE! SAVE 38%
$18.99

This product was last offered at the strikethrough price on
05-14-2026

$11.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

G13 Coolant / Antifreeze - 5 Liter

ES#2872898 - G013A8JM1S1 - G13 Coolant / Antifreeze - 5 Liter - Lilac OE VW/Audi specification concentrate lifetime coolant - Febi - Audi Volkswagen

Lilac OE VW/Audi specification concentrate lifetime coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872898
Mfg#:
G013A8JM1S1
In Stock at Vendor
Auto Notify
$76.99

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

$74.99 USD
Free Shipping
on orders $49 and up

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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