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Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.

Shipping Policy

This part does not have vehicle specific fitment. Please contact us if you need fitment assistance.

Design Engineering Radiator Relief 32oz
Part Number: 040104

Design Engineering Radiator Relief 32oz-A1
Images may be for reference only

Design Engineering Radiator Relief 32oz
Part Number: 040104

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Was: $23.98
$19.18
Save: $4.80 (20%)
Extra 5% off until 11/29/2022. Discount applied in cart.

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Product Details

Part Number: 040104
Manufacturer: Design Engineering
UPC: 607078401045

DEI's highly acclaimed Radiator Relief line has expanded with the addition of several thermal additives designed to increase the cooling efficiency of any stock or aftermarket radiator. 

  • Reduce engine temperatures up to 30° F with new anti-foam formulas using corrosion inhibitors.
  • DEI's Radiator Relief thermal chemicals can increase the cooling systems efficiency of any vehicle by working with the radiator to lower engine operating temperatures up to 30° F!
  • Before you upgrade to a performance fan or larger radiator try DEI Radiator Relief products.

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

This part does not have vehicle specific fitment

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Not Available for Pickup

This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.