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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Cooling Parts

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Oil Cooler Nut

ES#257106 - 068115723 - Oil Cooler Nut - Secures the oil cooler onto the oil filter fitting - Genuine Volkswagen Audi - Audi Volkswagen

Secures the oil cooler onto the oil filter fitting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
257106
Mfg#:
068115723
In Stock
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Supply Pipe

ES#280015 - 06B121070H - Coolant Supply Pipe - Located along top of the intake manifold - Genuine Volkswagen Audi - Audi

Located along top of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280015
Mfg#:
06B121070H
Ships in 2 Business Days
9% off MSRP

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

$232.99

This product was last offered at the strikethrough price on
07-01-2026

$212.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Hose

ES#2627325 - 8E0121101 - Upper Radiator Hose - Connects the upper radiator to the expansion tank and thermostat housing - Rein - Audi

Connects the upper radiator to the expansion tank and thermostat housing 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#:
2627325
Mfg#:
8E0121101
In Stock at Vendor
ON SALE!
$55.99

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

$53.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#436138 - 8E0121049N - Lower Radiator Hose - Connects the lower radiator to the expansion tank and thermostat housing - Genuine Volkswagen Audi - Audi

Connects the lower radiator to the expansion tank and thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436138
Mfg#:
8E0121049N
Ships in 2 Business Days
8% off MSRP

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

$224.99

This product was last offered at the strikethrough price on
03-11-2026

$205.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Return Tube

ES#277619 - 058121492A - Coolant Return Tube - Secured to the turbocharger using the integrated connector - Genuine Volkswagen Audi - Audi

Secured to the turbocharger using the integrated connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277619
Mfg#:
058121492A
Ships in 5 Business Days
6% off MSRP

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

$219.99

This product was last offered at the strikethrough price on
07-01-2026

$205.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Return

ES#280013 - 06B121065AB - Coolant Pipe - Return - Main return pipe that routes to the thermostat and the cylinder head flange - Genuine Volkswagen Audi - Audi

Main return pipe that routes to the thermostat and the cylinder head flange affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280013
Mfg#:
06B121065AB
Ships in 6 Business Days
8% off MSRP

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

$219.99

This product was last offered at the strikethrough price on
07-01-2026

$201.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Radiator

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

Brand:
Behr - Corporate Logo
ES#:
4146568
Mfg#:
8E0121251A
Back Ordered
$278.99

This product was last offered at the strikethrough price on
04-04-2026

$200.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer - Priced Each

ES#4013695 - N0138149 - Sealing Washer - Priced Each - Install new hardware with your new parts. M14x18 - Victor Reinz - Audi Volkswagen

Install new hardware with your new parts. M14x18 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
4013695
Mfg#:
N0138149
In Stock
$3.99

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

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

Cooling System Refresh Kit - Level 1

ES#2586289 - 06B121111K2KT - Cooling System Refresh Kit - Level 1 - Replace your thermostat, temp sensor and expansion tank with one kit! - Assembled By ECS - Audi

Replace your thermostat, temp sensor and expansion tank with one kit! 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#:
2586289
Mfg#:
06B121111K2KT
In Stock at Vendor
ON SALE! SAVE 12%
$227.99

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

$200.05 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Upper Radiator Hose

ES#436155 - 8E0121101 - Upper Radiator Hose - Connects the upper radiator to the expansion tank and thermostat housing - Genuine Volkswagen Audi - Audi

Connects the upper radiator to the expansion tank and thermostat housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436155
Mfg#:
8E0121101
Ships in 1 day
8% off MSRP

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

$106.99

This product was last offered at the strikethrough price on
07-01-2026

$97.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

Stop coolant loss and cure a fogged windshield affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Valeo - Corporate Logo
ES#:
4140429
Mfg#:
8E1820031
In Stock at Vendor
$194.38 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

Spring Band Clamp - Priced Each

ES#2801336 - N90687201 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 40x12 - Rein - Audi Volkswagen

Ensure a leak free installation. 40x12 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#:
2801336
Mfg#:
N90687201
In Stock at Vendor
ON SALE! SAVE 14%
$8.99

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

$7.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3447639 - 8E0121251AQ - Radiator - Keep your cooling system operating properly - Behr - Audi

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

Brand:
Behr - Corporate Logo
ES#:
3447639
Mfg#:
8E0121251AQ
Ships on Jul 20, 2026
$180.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Upper Radiator Mount - Priced Each

ES#371827 - 4B3121276A - Upper Radiator Mount - Priced Each - Stabilizes the radiator within the core support - Genuine Volkswagen Audi - Audi

Stabilizes the radiator within the core support affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
371827
Mfg#:
4B3121276A
Ships in 1 day
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
01-07-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2586894 - 8E0121403KT - Expansion Tank Replacement Kit - Composed of genuine Audi parts to fix your leaking coolant expansion tank. - Assembled By ECS - Audi

Composed of genuine Audi parts to fix your leaking coolant expansion tank. 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#:
2586894
Mfg#:
8E0121403KT
Ships in 1 day
ON SALE! SAVE 44%
$158.99

This product was last offered at the strikethrough price on
02-08-2026

$89.69 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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