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Audi A4 Engine Cooling Parts

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Coolant Supply Hose

ES#4039683 - 8E1819371P - Coolant Supply Hose - Supplies coolant to provide heat for the heater core - Vaico - Audi

Supplies coolant to provide heat for the heater core affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4039683
Mfg#:
8E1819371P
Special Order: No Guaranteed ETA
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87C

Prevent overheating and premature engine wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940301
Mfg#:
078121113F
Special Order: No Guaranteed ETA
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ON SALE! SAVE 18%
$16.99

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

$13.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Hose

Keep your cooling system free from cracks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3659113
Mfg#:
8K0121101M
Back Ordered
$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

Install new hardware with your new parts. M8x37 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW. Secures the oil filter adapter to the engine

Brand:
Rein - Corporate Logo
ES#:
4004624
Mfg#:
N90339605
Back Ordered
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

Monitors coolant temperature for fan control & gauge readings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SMP - Corporate Logo
ES#:
4057464
Mfg#:
06A919501A
Back Ordered
$32.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

Includes housing, gasket & sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SMP - Corporate Logo
ES#:
4070681
Mfg#:
06B121111K
Back Ordered
$135.99

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

$132.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

Keep your cooling system operating properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spectra Premium - Corporate Logo
ES#:
4146571
Mfg#:
8E0121251A
Back Ordered
$185.99

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

$180.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter

With an integrated oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4865930
Mfg#:
06A115405BS
Special Order: No Guaranteed ETA
$332.99 USD
Free Shipping
on orders $49 and up

Expansion Tanks Breather Line

keep your engine temps where they are supposed to be! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4819061
Mfg#:
8W0121081ED
Special Order: No Guaranteed ETA
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

Ensure proper cooling for your engine with a new radiator. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4819045
Mfg#:
8W0121251AK
Special Order: No Guaranteed ETA
$445.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

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

Brand:
Vernet - Corporate Logo
ES#:
4674381
Mfg#:
050121113C
Back Ordered
$12.99 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.

Let us help you find the parts that fit your Audi

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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