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Audi A3 Engine Cooling Parts

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Heater Core Hose - Supply

ES#4899602 - 1K0122157HE - Heater Core Hose - Supply - Connects the heater core pipe to the flange - Rein - Audi Volkswagen

Connects the heater core pipe to the flange 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with TSI engines only

Brand:
Rein - Corporate Logo
ES#:
4899602
Mfg#:
1K0122157HE
In Stock at Vendor
$51.99

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

$49.99 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 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!

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

Cooling System Refresh Kit - Level 1

ES#2592485 - 06H121121JKT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!
For TSI engine models with CCTA engine code equipped with Behr water pump

Brand:
Assembled By ECS - Corporate Logo
ES#:
2592485
Mfg#:
06H121121JKT
Ships in 3 Business Days
ON SALE!
$299.99

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

$297.79 USD
Free Shipping
This product is lifetime replacement eligible Partial 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

Thermostat Housing O-Ring

ES#268978 - 021121119A - Thermostat Housing O-Ring - O-Ring between thermostat housing and cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

O-Ring between thermostat housing and cylinder head

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
268978
Mfg#:
021121119A
In Stock
35% off MSRP

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

$13.73

This product was last offered at the strikethrough price on
07-21-2026

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core Hose - Return

ES#315218 - 1K0121073BF - Heater Core Hose - Return - Connects the heater core pipe to the flange - Genuine Volkswagen Audi - Audi Volkswagen

Connects the heater core pipe to the flange For vehicles with FSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315218
Mfg#:
1K0121073BF
Ships in 1 day
6% off MSRP

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

$62.99

This product was last offered at the strikethrough price on
07-21-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#3235555 - 1K0965561G - Auxiliary Water Pump - Secondary pump for more efficient cooling - Gates - Audi Volkswagen

Secondary pump for more efficient cooling For vehicles with FSI engines only

Brand:
Gates - Corporate Logo
ES#:
3235555
Mfg#:
1K0965561G
In Stock at Vendor
$294.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2535364 - 06H121026BA - Water Pump - Featuring a metal impeller - Geba - Audi Volkswagen

Featuring a metal impeller For vehicles with TSI engines only

Brand:
Geba - Corporate Logo
ES#:
2535364
Mfg#:
06H121026BA
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Core

ES#1928598 - 1K0819031D - Heater Core - Transforms hot coolant into warmth for your cabin - Genuine Volkswagen Audi - Audi Volkswagen

Transforms hot coolant into warmth for your cabin

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1928598
Mfg#:
1K0819031D
Ships in 1 day
7% off MSRP

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

$311.99

This product was last offered at the strikethrough price on
07-21-2026

$290.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#3235556 - 1K0965561J - Auxiliary Water Pump - Secondary pump for more efficient cooling - Gates - Audi Volkswagen

Secondary pump for more efficient cooling

Brand:
Gates - Corporate Logo
ES#:
3235556
Mfg#:
1K0965561J
Ships on Aug 10, 2026
$287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Quick Coupler

ES#4810736 - 1K0122291C - Quick Coupler - Connects upper radiator hose to return line - Rein - Audi Volkswagen

Connects upper radiator hose to return line 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4810736
Mfg#:
1K0122291C
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RADIATOR

ES#4665833 - 5WA121251D - RADIATOR - Genuine Volkswagen Audi - Audi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4665833
Mfg#:
5WA121251D
Ships in 1 day
7% off MSRP

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

$306.99

This product was last offered at the strikethrough price on
02-26-2026

$285.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Union

ES#4818499 - 06L121131 - Water Pump Union - Connects water pump module to oil cooler - Bremmen Parts - Audi Volkswagen

Connects water pump module to oil cooler 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818499
Mfg#:
06L121131
In Stock
ON SALE! SAVE 29%
$5.99

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

$4.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#3663875 - 06l121111hKT2 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensor with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensor with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3663875
Mfg#:
06L121111HKT2
Ships in 1 day
ON SALE! SAVE 29%
$397.99

This product was last offered at the strikethrough price on
01-26-2026

$281.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2762958 - 03L121111AC1 - Thermostat - Includes housing and seal ring - Behr - Audi Volkswagen

Includes housing and seal ring

Brand:
Behr - Corporate Logo
ES#:
2762958
Mfg#:
03L121111AC1
Ships in 7 Business Days
$73.84

This product was last offered at the strikethrough price on
05-09-2026

$69.50 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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