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Audi S5 Engine Thermostat Parts

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Thermostat Replacement Kit

ES#3651498 - 06e121111alktKT4 - 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 Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3651498
Mfg#:
06E121111ALKTKT4
In Stock
ON SALE! SAVE 15%
$82.99

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

$70.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat Housing

ES#5374543 - 06M121115K - Thermostat Housing - Common point of failure for the cooling system. - Hamburg Tech - Audi

Common point of failure for the cooling system.

Brand:
Hamburg Tech - Corporate Logo
ES#:
5374543
Mfg#:
06M121115K
Ships in 1 Business Day
$150.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#284823 - 079121119C - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat - Genuine Volkswagen Audi - Audi

Ensure a proper seal when installing your new thermostat

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284823
Mfg#:
079121119C
In Stock
8% off MSRP

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

$25.99

This product was last offered at the strikethrough price on
10-23-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4056291 - 06E121111AL - Thermostat - Includes sealing gasket and housing - Vemo - Audi

Includes sealing gasket and housing

Brand:
Vemo - Corporate Logo
ES#:
4056291
Mfg#:
06E121111AL
Ships in 1 Business Day
$120.99

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

$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

Common point of failure for the cooling system.

Brand:
Vernet - Corporate Logo
ES#:
4845444
Mfg#:
06M121115N
Ships in 1 Business Day
$80.99

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

$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3188278 - 06E121111AL - Thermostat - Includes sealing gasket and housing - MotoRad - Audi

Includes sealing gasket and housing

Brand:
MotoRad
ES#:
3188278
Mfg#:
06E121111AL
In Stock
Limited Qty Sale
$86.27

This product was last offered at the strikethrough price on
08-26-2026

$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#3211787 - 06M121688 - Thermostat Housing O-Ring - Seal for the thermostat housing - Genuine Volkswagen Audi - Audi

Seal for the thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3211787
Mfg#:
06M121688
Ships in 1-2 days
10% off MSRP

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

$9.99

This product was last offered at the strikethrough price on
10-23-2026

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

Thermostat

Includes sealing gasket and housing

Brand:
Mahle - Corporate Logo
ES#:
5396687
Mfg#:
06E121111AL
Back Ordered
$69.99

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

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#5443871 - 06E121111AL - Thermostat - Includes sealing gasket and housing - Hamburg Tech - Audi

Includes sealing gasket and housing

Brand:
Hamburg Tech - Corporate Logo
ES#:
5443871
Mfg#:
06E121111AL
Ships in 1 Business Day
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#4690986 - 06M121688 - Thermostat Housing O-Ring - Seal for the thermostat housing - Elring - Audi

Seal for the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4690986
Mfg#:
06M121688
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

B8 S4/S5 Performance Aluminum Radiator & Billet Aluminum Thermostat (80°C)

ES#5528452 - 053120LADBKT - B8 S4/S5 Performance Aluminum Radiator & Billet Aluminum Thermostat (80C) - The ULTIMATE cooling system upgrade for your 3.0T-equipped Audi! This limited-time Doorbuster includes our high-performance aluminum radiator and our billet aluminum thermostat to add cooling capacity and durability. - Doorbusters - Audi

The ULTIMATE cooling system upgrade for your 3.0T-equipped Audi! This limited-time Doorbuster includes our high-performance aluminum radiator and our billet aluminum thermostat to add cooling capacity and durability.

Brand:
Doorbusters - Corporate Logo
ES#:
5528452
Mfg#:
053120LADBKT
Ships in 10 Business Days
$822.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4845814 - 06M121115N - Thermostat Housing - Common point of failure for the cooling system. - Vemo - Audi

Common point of failure for the cooling system.

Brand:
Vemo - Corporate Logo
ES#:
4845814
Mfg#:
06M121115N
Special Order: No Guaranteed ETA
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Thermostat Parts

Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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