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Audi A4 Engine Cooling Parts

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Radiator

ES#3437443 - 8K0121251AJ - Radiator - Keep your cooling system operating properly - Nissens - Audi

Keep your cooling system operating properly We Price Match - Give Us A Call or Chat!
Automatic transmission vehicles only

Brand:
Nissens - Corporate Logo
ES#:
3437443
Mfg#:
8K0121251AJ
In Stock at Vendor
$321.99

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

$312.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Kit

ES#5341155 - WPL0057 - Water Pump Kit - Includes water pump, belt, union, and hardware - Rein - Audi Volkswagen

Includes water pump, belt, union, and hardware 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5341155
Mfg#:
WPL0057
Back Ordered
$312.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

Keep your cooling system operating properly For automatic transmission vehicles

Brand:
Behr - Corporate Logo
ES#:
4146603
Mfg#:
8E0121251AP
In Stock at Vendor
$341.99

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

$309.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Hose

ES#3448648 - 06D121101B - Coolant Flange Hose - Connects the rear coolant flange to the hard water pipe - Rein - Audi

Connects the rear coolant flange to the hard water pipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3448648
Mfg#:
06D121101B
In Stock
$6.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#4818460 - 06E121058E - Oil Cooler Hose - Supply - Connects the oil cooler to the hard water tube - Bremmen Parts - Audi

Connects the oil cooler to the hard water tube 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818460
Mfg#:
06E121058E
In Stock
ON SALE! SAVE 20%
$11.99

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

$9.59 USD
Free Shipping
on orders $49 and up
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 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

Oil Cooler Hose - Return

ES#2627319 - 06B121058 - Oil Cooler Hose - Return - Connects the oil cooler to the hard water tube - Rein - Audi Volkswagen

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

Brand:
Rein - Corporate Logo
ES#:
2627319
Mfg#:
06B121058
In Stock
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Fan Cowel

ES#450282 - 8K0121207A - Dual Fan Cowel - Secures the dual fan assemblies - Genuine Volkswagen Audi - Audi

Secures the dual fan assemblies

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450282
Mfg#:
8K0121207A
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.

$333.99

This product was last offered at the strikethrough price on
07-26-2026

$304.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Supply

ES#4818668 - 8D0819371H - Heater Core Hose - Supply - Connects the heater core to the cylinder head flange - Bremmen Parts - Audi Volkswagen

Connects the heater core to the cylinder head flange 10X Entries For Our 25th Anniversary Sweepstakes!

From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818668
Mfg#:
8D0819371H
In Stock
ON SALE! SAVE 22%
$22.99

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

$17.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Replacement Kit - With Coolant

ES#2770997 - 06D121132CKT3 - Coolant Flange Replacement Kit - With Coolant - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2770997
Mfg#:
06D121132CKT3
Ships in 2 Business Days
ON SALE!
$81.99

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

$75.44 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Cooler O-Ring

ES#2718036 - 038117070A - Oil Cooler O-Ring - Seals the connection between the oil cooler and the filter adapter. 59x5 - Elring - Audi Volkswagen

Seals the connection between the oil cooler and the filter adapter. 59x5 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Up to VIN 8D-Y-022960, split is in the 2000 model year

Brand:
Elring - Corporate Logo
ES#:
2718036
Mfg#:
038117070A
In Stock
$1.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spal Electric Fan Harness with Relay

ES#4147343 - FRH - Spal Electric Fan Harness with Relay - Electric Fan Relay - 40 amp, 12V, single pole wiring harness kit - Spal - Audi BMW MINI

Electric Fan Relay - 40 amp, 12V, single pole wiring harness kit

Brand:
Spal - Corporate Logo
ES#:
4147343
Mfg#:
FRH
Back Ordered
12% off MSRP

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

$112.99

This product was last offered at the strikethrough price on
07-26-2026

$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant T Connector

ES#3623904 - N90692901 - Coolant T Connector - Connects to the lower radiator hose - URO - Audi Volkswagen

Connects to the lower radiator hose 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Connects lower radiator hose to the coolant expansion tank hose and water pump hose

Brand:
URO - Corporate Logo
ES#:
3623904
Mfg#:
N90692901
Ships in 1 Business Day
$11.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler Gasket

ES#2800396 - 06J117070C - Engine Oil Cooler Gasket - Connects oil cooler to oil filter housing - Ajusa - Audi Volkswagen

Connects oil cooler to oil filter housing

Brand:
Ajusa - Corporate Logo
ES#:
2800396
Mfg#:
06J117070C
Back Ordered
Auto Notify
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Clutch

ES#2187583 - 078121350A - Auxiliary Fan Clutch - Common cause of overheating issues - URO - Audi Volkswagen

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

Brand:
URO - Corporate Logo
ES#:
2187583
Mfg#:
078121350A
Ships in 1 Business Day
$73.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2582072 - 8E0121403 - Coolant Expansion Tank - Plastic reservoir for cooling system - Vaico - Audi

Plastic reservoir for cooling system We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2582072
Mfg#:
8E0121403
In Stock at Vendor
$60.99

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

$58.99 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

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