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Audi A3 Engine Cooling Parts

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Thermostat Housing Cover

ES#2812871 - 022121121E - Thermostat Housing Cover - Common source of coolant leaks around your thermostat - Hamburg Tech - Audi Volkswagen

Common source of coolant leaks around your thermostat We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812871
Mfg#:
022121121E
Ships in 2 Business Days
$26.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hoses - Pair

ES#342946 - 3C0122063M - Coolant Hoses - Pair - Hoses that connect the plastic water pipes to the additional water pump - Genuine Volkswagen Audi - Audi Volkswagen

Hoses that connect the plastic water pipes to the additional water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
342946
Mfg#:
3C0122063M
In Stock
7% off MSRP

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

$93.99

This product was last offered at the strikethrough price on
07-20-2026

$86.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Coolant Hose Kit - Black

ES#1832511 - FMKC010 - Silicone Coolant Hose Kit - Black - Improves performance, durability, along with providing a cleaner look. Eight piece kit - Forge - Audi Volkswagen

Improves performance, durability, along with providing a cleaner look. Eight piece kit For vehicles with FSI engines only

Brand:
Forge - Corporate Logo
ES#:
1832511
Mfg#:
FMKC010
Ships in 4 Business Days
$346.99 USD
Free Shipping
on orders $49 and up

Upper Radiator Bracket - Priced Each

ES#3618272 - 1K0121367P - Upper Radiator Bracket - Priced Each - Secures the top corners of the radiator - Febi - Audi Volkswagen

Secures the top corners of the radiator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
3618272
Mfg#:
1K0121367P
Ships on Aug 21, 2026
Auto Notify
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Water Pump

ES#318788 - 1K0965561G - Auxiliary Water Pump - Secondary pump for more efficient cooling - Genuine Volkswagen Audi - Audi Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
318788
Mfg#:
1K0965561G
Ships in 3 Business Days
7% off MSRP

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

$358.99

This product was last offered at the strikethrough price on
07-20-2026

$334.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mishimoto Performance Auxiliary Heat Exchanger

ES#4491502 - MMRAD-MK7-15A - Mishimoto Performance Auxiliary Heat Exchanger - 106% increase in coolant capacity over stock heat exchanger - Mishimoto - Audi Volkswagen

106% increase in coolant capacity over stock heat exchanger

Brand:
Mishimoto - Corporate Logo
ES#:
4491502
Mfg#:
MMRAD-MK7-15A
In Stock at Vendor
$389.99

This product was last offered at the strikethrough price on
05-26-2026

$331.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Tube

ES#1833444 - 03L121065T - Coolant Tube - Connects thermostat housing to heater core hose - Genuine Volkswagen Audi - Audi Volkswagen

Connects thermostat housing to heater core hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1833444
Mfg#:
03L121065T
Ships in 3 Business Days
7% off MSRP

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

$88.99

This product was last offered at the strikethrough price on
07-20-2026

$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#467487 - N10139201 - O-Ring - Priced Each - O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55 - Genuine Volkswagen Audi - Audi Volkswagen

O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467487
Mfg#:
N10139201
In Stock
41% off MSRP

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

$6.72

This product was last offered at the strikethrough price on
07-20-2026

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 295mm

ES#258484 - 1K0959455ET - Auxiliary Fan Assembly - 295mm - Smaller of the two fans found behind the radiator - Genuine Volkswagen Audi - Audi Volkswagen

Smaller of the two fans found behind the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
258484
Mfg#:
1K0959455ET
Ships in 3 Business Days
7% off MSRP

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

$354.99

This product was last offered at the strikethrough price on
07-20-2026

$330.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose Reroute Kit

ES#4623939 - UH013-ACA - Coolant Hose Reroute Kit - Get this silicone hose out of the way to enjoy the looks of your Unitronic Carbon Fiber components. - Unitronic - Audi Volkswagen

Get this silicone hose out of the way to enjoy the looks of your Unitronic Carbon Fiber components.

Brand:
Unitronic - Corporate Logo
ES#:
4623939
Mfg#:
UH013-ACA
In Stock
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug Kit - Priced Each

ES#2535191 - 357121140 - Coolant Flange Plug Kit - Priced Each - Includes the plug, o-ring and securing clip - URO - Audi Volkswagen

Includes the plug, o-ring and securing clip 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535191
Mfg#:
357121140
Ships in 2 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose - Lower

ES#315416 - 1K0122109AL - Expansion Tank Hose - Lower - Replace at the first signs of leakage - Genuine Volkswagen Audi - Audi Volkswagen

Replace at the first signs of leakage For vehicles with FSI engines only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315416
Mfg#:
1K0122109AL
In Stock at Vendor
$83.99

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

$81.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 295mm

ES#2553327 - 1KM959455E - Auxiliary Fan Assembly - 295mm - Smaller of the two fans found behind the radiator - Genuine Volkswagen Audi - Audi Volkswagen

Smaller of the two fans found behind the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2553327
Mfg#:
1KM959455E
Ships in 2 Business Days
$335.99

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

$326.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#4367020 - 5WA121251H - Radiator - Keep your engine running cool with a new radiator. - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running cool with a new radiator.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4367020
Mfg#:
5WA121251H
Ships in 3 Business Days
7% off MSRP

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

$350.99

This product was last offered at the strikethrough price on
07-20-2026

$326.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#315317 - 1K0121251AB - Radiator - Keep your engine running cool with a new radiator - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running cool with a new radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315317
Mfg#:
1K0121251AB
Special Order: No Guaranteed ETA
7% off MSRP

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

$349.99

This product was last offered at the strikethrough price on
07-20-2026

$325.99 USD
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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