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Audi B5 A4 FWD 1.8T

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Audi B5 A4 FWD 1.8T Cooling System Service & Maintenance Parts

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Thermostat Replacement Kit

ES#2581870 - 050121113ckt-4 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Assembled By ECS - Audi

Maintain proper operating temperature with a new thermostat, housing and hardware 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581870
Mfg#:
050121113CKT-4
In Stock
ON SALE! SAVE 24%
$41.99

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

$31.82 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Freeze Tester

ES#4337913 - CTAA195 - Anti-Freeze Tester - Tests all ethylene glycol solutions with radiator hot or cold - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tests all ethylene glycol solutions with radiator hot or cold

Brand:
CTA Tools - Corporate Logo
ES#:
4337913
Mfg#:
CTAA195
Ships on Aug 6, 2026
$9.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2

ES#2608134 - 030121121BKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AEB from VIN 8D-W-007800 up to VIN 8D-X-500000, splits are in the 1998-1999 model years

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608134
Mfg#:
030121121BKT2
Ships in 1-2 days
ON SALE!
$155.99

This product was last offered at the strikethrough price on
06-18-2026

$153.42 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2608133 - 06B121121LKT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608133
Mfg#:
06B121121LKT
Ships in 1-2 days
ON SALE!
$159.99

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

$152.06 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 3

ES#2608143 - 050121113CKT4 - Cooling System Refresh Kit - Level 3 - Replace critical cooling system components and perform a proper coolant system flush! - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine codes AEB & ATW from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608143
Mfg#:
050121113CKT4
Ships on Nov 27, 2026
ON SALE!
$194.99

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

$184.22 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Cooling System Service & Maintenance Parts

From individual cooling system parts to full cooling system refresh kits and cooling system upgrades, we have it all right here so you can keep your engine temperature in check or improve cooling system performance to meet the demands you place on your car.

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