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Heating and Cooling› Radiators

Frostbite

FROSTBITE FAN/SHROUD ELECTRIC FAN RELAY

$168.95 $161.22 Save $7.73

SKU: F00R FB403

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Frostbite FB403 is an electric fan/shroud relay kit designed for engine cooling systems. It features a universal fitment for compatibility with all types of vehicles and allows for flexibility in configuring fans as either pushers or pullers.

This kit has a draw capacity of up to 40 amps and includes a temperature sensor that activates the fans at 185 degrees F and deactivates them at 170 degrees F. The temperature sensor thread size is 1/2 in NPT, and it is also compatible with a 3/8 in NPT sensor thread.

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

BrandFrostbite
Part NumberF00R FB403

Buy with Confidence

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.

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