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Audi B6 A4 FWD 1.8T

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Audi B6 A4 FWD 1.8T Engine Thermostat Parts

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THERMOSTAT ASSEMBLY 100C

ES#4151133 - 06B121111K - THERMOSTAT ASSEMBLY 100C - Rein - Audi

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Brand:
Rein - Corporate Logo
ES#:
4151133
Mfg#:
06B121111K
Back Ordered
ON SALE!
$111.99

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

$106.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

Includes housing, gasket & sensor

Brand:
SMP - Corporate Logo
ES#:
4070681
Mfg#:
06B121111K
Back Ordered
$135.99

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

$132.99 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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