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Audi B6 A4 Quattro V6 30v

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Audi B6 A4 Quattro V6 30v Engine Thermostat Parts

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Allen/Hex Bolt - Priced Each

ES#4151982 - N90945002 - Allen/Hex Bolt - Priced Each - Install new hardware with your new parts. M7x21.5mm - Rein - Audi Volkswagen

Install new hardware with your new parts. M7x21.5mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4151982
Mfg#:
N90945002
In Stock
$5.99

This product was last offered at the strikethrough price on
10-18-2026

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

Low Temp Thermostat - 70 Degree C

ES#4858162 - 034-102-7005 - Low Temp Thermostat - 70 Degree C - Get faster coolant circulation through the radiator for cooler running. - 034Motorsport - Audi Volkswagen

Get faster coolant circulation through the radiator for cooler running. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858162
Mfg#:
034-102-7005
Ships in 2 Business Days
$51.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3435242 - 06E121111G - Thermostat - Includes housing and gasket. - Rein - Audi

Includes housing and gasket. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3435242
Mfg#:
06E121111G
In Stock
Limited Qty Sale
$82.99

This product was last offered at the strikethrough price on
10-15-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3659357 - 06E121111M - Thermostat - Includes housing and gasket - URO - Audi

Includes housing and gasket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3659357
Mfg#:
06E121111M
In Stock
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - 92C

ES#4759991 - 06C121111E - Thermostat Assembly - 92C - Housing included - Bremmen Parts - Audi

Housing included 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759991
Mfg#:
06C121111E
In Stock
ON SALE!
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2894879 - 06E121111G - Thermostat - Includes housing and gasket. - Vemo - Audi

Includes housing and gasket.

Brand:
Vemo - Corporate Logo
ES#:
2894879
Mfg#:
06E121111G
Ships in 1 Business Day
$120.99

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

$117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each (24x3)

ES#2802451 - N90380002 - O-Ring - Priced Each (24x3) - O-ring used in various areas on your European vehicle - Rein - Audi

O-ring used in various areas on your European vehicle 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
24x3 O-ring that is seated between the hard coolant pipe and thermostat housing

Brand:
Rein - Corporate Logo
ES#:
2802451
Mfg#:
N90380002
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2762250 - 06c121111ekt - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Genuine Volkswagen Audi - Audi

Maintain proper operating temperature with a new thermostat, housing and hardware

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762250
Mfg#:
06C121111EKT
Ships in 1-2 days
$163.99

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

$155.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#280257 - 06C121111E - Thermostat Assembly - Housing included - Genuine Volkswagen Audi - Audi

Housing included

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280257
Mfg#:
06C121111E
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.

$164.99

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

$143.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#4818465 - 06F121057D - Coolant Hose - Rubber coolant hose that connects thermostat to coolant hard pipe - Bremmen Parts - Audi

Rubber coolant hose that connects thermostat to coolant hard pipe 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818465
Mfg#:
06F121057D
In Stock
$4.99 USD
Free Shipping
on orders $49 and up

Thermostat Assembly

ES#3961 - 06C121111C - Thermostat Assembly - Housing included - Wahler - Audi

Housing included

Brand:
Wahler - Corporate Logo
ES#:
3961
Mfg#:
06C121111C
In Stock at Vendor
ON SALE!
$60.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Low Temp Thermostat - 80 Degree C

ES#4858161 - 034-102-7001 - Low Temp Thermostat - 80 Degree C - Get faster coolant circulation through the radiator for cooler running. - 034Motorsport - Audi Volkswagen

Get faster coolant circulation through the radiator for cooler running. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858161
Mfg#:
034-102-7001
Back Ordered
$51.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#3234807 - 06C121111E - Thermostat Assembly - Housing included - Gates - Audi

Housing included

Brand:
Gates - Corporate Logo
ES#:
3234807
Mfg#:
06C121111E
Ships on Nov 19, 2026
$72.99

This product was last offered at the strikethrough price on
06-03-2026

$64.99 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

Thermostat Replacement Kit

ES#2762251 - 06C121111EKT1 - 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#:
2762251
Mfg#:
06C121111EKT1
Ships in 1-2 days
ON SALE!
$44.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - 92C

ES#3149393 - 06C121111E - Thermostat Assembly - 92C - Housing included - Rein - Audi

Housing included 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149393
Mfg#:
06C121111E
Ships in 3 Business Days
$34.99 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.

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

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