Heating and Cooling› Thermostats, Housings and Fillers

Design Engineering

DEI Radiator Relief - 16oz.

$6.16

SKU: D00B 40200

In Stock
In Stock
Ships by Jul 29
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Non-Returnable Item

Description

The Design Engineering Radiator Relief is a coolant additive designed to reduce engine temperatures by up to 30 degrees Fahrenheit. It acts as a preventive measure against overheating, as well as electrolytic and chemical corrosion. The formula includes an anti-foaming agent and corrosion inhibitor, balancing pH levels and reducing mineral deposits. It is safe for use with all radiator materials including cast iron, copper, brass, and aluminum, and is compatible with all coolant additives and antifreeze mixtures.

Fitment

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Specifications

BrandDesign Engineering
Part NumberD00B 40200

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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