Entropy Terms and Conditions

Delivery time

Due to supply constraints with Covid-19 and workforce constraints, all of our radiator products are made to order with lead times at 4-6 weeks. If you need it sooner, please call us (773)669-6573.

Shipping Time

Most of our products ship by USP and we ship from our HQ in Chicago, IL. Delivery time is 1-4 days for most of the 48 states. Smaller items like wiring harnesses we ship via USPS with delivery times of 2-3 days in most cases.


Unless otherwise specified, our radiators have a natural finish on them and are not polished. For a quick 15 minute way to drastically improve the appearance of your radiator, we recommend going over it with a maroon medium/light Scotch Brite pad and Never Dull aluminum cleaner. Never Dull is available at most hardware stores.


We accept Paypal as well as Visa, Mastercard, Discover and American Express for payment.

We ship to the US and Canada only and ship by either UPS or USPS, depending on the product. Local pickup is available by calling to arrange pickup. We inspect all items before shipment however damage can occur in shipment to you. If you receive your item damaged, please contact us immediately and save all original packaging. UPS will likely want to inspect the package and the original packaging is needed to return it to us. Please note: any Paypal transaction over $500 requires a signature for delivery.

Returns and refunds

Returns are accepted within 30 days of purchase. All returns must be unused, unfilled with coolant and free of any damage including damaged fins and cross thread connections. All items must be returned in the original packaging and well packaged for the return trip. A 20% restocking fee applies to all returns. Shipping is not refundable. Custom made products are not returnable. We will replace defective merchandise and cover all shipping costs.


The warranty on all of our radiators, fans and wiring products have a lifetime warranty. The warranty does not cover abuse, neglect or failure due to electrolysis. For the radiator to be valid on radiator products, new pre-mix coolant is required along with a receipt for such within 60 days of radiator receipt. In the event of failure, we cover shipping both ways for the replacement. Entropy is not responsible for incidental costs or labor involved in warranty claims.