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Audi A4 Engine Cooling Parts

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Freeze Plug - Priced Each

ES#466002 - N01190710 - Freeze Plug - Priced Each - Keep your engine block sealed. 14mm - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine block sealed. 14mm Engine codes AEB, ATW & AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466002
Mfg#:
N01190710
Ships in 1-2 days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring - 2 Pin

ES#4872601 - 025906041AKT - Coolant Temperature Sensor With O-Ring - 2 Pin - Blue sensor used by the ECU to control engine fueling - Vemo - Audi Volkswagen

Blue sensor used by the ECU to control engine fueling From VIN 8D-W-007800 up to VIN 8D-X-199999, splits are in the 1998/1999 model years

Brand:
Vemo - Corporate Logo
ES#:
4872601
Mfg#:
025906041AKT
Ships in 1 Business Day
$14.99

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

$13.99 USD
Free Shipping
on orders $49 and up

Sealing O-Ring - Priced Each

ES#3353262 - N90365302 - Sealing O-Ring - Priced Each - Genuine Porsche - Audi Volkswagen

O-Ring for the faulty coolant "J-Plug" that is located next to the thermostat.

Brand:
Genuine Porsche - Corporate Logo
ES#:
3353262
Mfg#:
N90365302
Ships in 4 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 280mm

ES#3098864 - 8D0959455 - Auxiliary Fan Assembly - 280mm - 300W with round 2 pin connector - URO - Audi Volkswagen

300W with round 2 pin connector 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Valeo style assembly, please check existing manufacturer for proper fitment

Brand:
URO - Corporate Logo
ES#:
3098864
Mfg#:
8D0959455
Ships in 1 Business Day
$64.99

This product was last offered at the strikethrough price on
10-13-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#2873160 - 028117021L - Engine Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Febi - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873160
Mfg#:
028117021L
Ships in 1-2 days
$76.99

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

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3234814 - 06E121111G - Thermostat - Includes housing and gasket. - Gates - Audi

Includes housing and gasket.

Brand:
Gates - Corporate Logo
ES#:
3234814
Mfg#:
06E121111G
Ships on Nov 19, 2026
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2731898 - 4B0121055J - Radiator Hose - Lower - Connects the lower radiator port to the water pump and expansion tank - Rein - Audi Volkswagen

Connects the lower radiator port to the water pump and expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2731898
Mfg#:
4B0121055J
Back Ordered
$103.99

This product was last offered at the strikethrough price on
10-22-2026

$54.89 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#3139155 - 8E0121403 - Coolant Expansion Tank - Plastic reservoir for cooling system - Hudson - Audi

Plastic reservoir for cooling system

Brand:
Hudson - Corporate Logo
ES#:
3139155
Mfg#:
8E0121403
Ships in 1-2 days
$27.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - (NO LONGER AVAILABLE)

ES#3149419 - 06D121111G - Thermostat Assembly - (NO LONGER AVAILABLE) - Keep your cooling system operating properly - Rein - Audi

Keep your cooling system operating properly 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149419
Mfg#:
06D121111G
Ships in 3 Business Days
$53.99 USD
Free Shipping
on orders $49 and up

Turbo Coolant Line Install Kit (Return)

ES#3149748 - 06d121492jKT - Turbo Coolant Line Install Kit (Return) - Consists of banjo bolts and crush washers for a complete return line install - Genuine Volkswagen Audi - Audi

Consists of banjo bolts and crush washers for a complete return line install

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3149748
Mfg#:
06D121492JKT
Ships in 1-2 days
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant "J" Plug

ES#4415624 - 06B103033A - Coolant "J" Plug - Located on the block near the coolant regulator - URO - Audi

Located on the block near the coolant regulator 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4415624
Mfg#:
06B103033A
Ships in 1 Business Day
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Gasket

ES#2845038 - 06L121043B - Water Pump Gasket - Gasket between the thermostat and water pump - Genuine Volkswagen Audi - Audi Volkswagen

Gasket between the thermostat and water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2845038
Mfg#:
06L121043B
Ships in 1-2 days
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

auxiliary water pump hose - lower

ES#281426 - 06H121057G - auxiliary water pump hose - lower - Connects the side port of the auxiliary water pump to the coolant pipe - Genuine Volkswagen Audi - Audi

Connects the side port of the auxiliary water pump to the coolant pipe Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281426
Mfg#:
06H121057G
Ships in 2 Business Days
12% off MSRP

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

$59.99

This product was last offered at the strikethrough price on
10-26-2026

$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#2627317 - 8D0121055T - Radiator Hose - Lower - Connects the lower radiator port to the thermostat housing - Rein - Audi Volkswagen

Connects the lower radiator port to the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D -X-003501, split is in the 1999 model year

Brand:
Rein - Corporate Logo
ES#:
2627317
Mfg#:
8D0121055T
Ships in 3 Business Days
$37.99

This product was last offered at the strikethrough price on
10-22-2026

$26.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2804121 - 058121132KT - Cooling Flange Replacement Kit - 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 Into Our F80 M3 Sweepstakes
For vehicles with AEB & ATW engine codes with square coolant temp sensor

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804121
Mfg#:
058121132KT
Ships on Feb 25, 2027
ON SALE!
$55.99

This product was last offered at the strikethrough price on
08-13-2026

$52.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

auxiliary water pump hose - upper

ES#281425 - 06H121057E - auxiliary water pump hose - upper - Connects the top port of the auxiliary water pump to the coolant pipe - Genuine Volkswagen Audi - Audi

Connects the top port of the auxiliary water pump to the coolant pipe Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281425
Mfg#:
06H121057E
Ships in 1-2 days
13% off MSRP

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

$59.99

This product was last offered at the strikethrough price on
08-31-2026

$51.99 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.

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