Sale

Wahler

Thermostat 90°C with Gasket

$75.62 $32.49 Save $43.13

SKU: 3457.90D

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

With a precise opening temperature of 90°C, it ensures your engine performs efficiently and avoids overheating. This thermostat comes complete with the required gaskets and seals, simplifying the installation process. It is designed as a direct replacement for OE part numbers A 271 203 03 75 and 271 200 00 15. The Wahler 3457.90D is compatible with a range of Mercedes-Benz models manufactured between 2002 and 2018, including various C-Class, E-Class, and Sprinter variants. Specific engine types include C 180 Kompressor, C 200 Kompressor, E 200 Kompressor, and more, covering a power output range of 122-192 hp (90-141 kW). Manufactured by Wahler, a brand known for its commitment to quality, this thermostat is built to meet or exceed original equipment standards, ensuring reliability and longevity for your vehicle's cooling system.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandWahler
Part Number3457.90D
CategoryHeating and Cooling

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy