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XAT UCF20 LS400 Radiator DIY Overkill Thicc LS400 Celsior
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XAT UCF20 LS400 Radiator DIY Overkill Thicc LS400 Celsior


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Cool off, thiccboi! This radiator comes in hard at 2.5 inches thick, 29 inches wide, 20 inches tall.


Will require minor modifications to lower mounting points and new upper radiator mount brackets. We are currently working on billet UCF20 bolt on upper brackets. Otherwise fits perfect in your UCF20, 94-00 LS400, and Celsior


Factory UCF20 hydrofan does NOT bolt up without modifying mounting provisions


Pending fitment check on UCF10, early LS400. We will update this listing with results

  • $295
Market price: $365, you save $70
  • 19% less
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  • Weight
    12.75 lbs
  • SKU
    XAT-UCF-MegaRad
  • Auto Transmission Cooler
    No, I have a manual trans, Mishimoto Heavy Duty with fan, MMOC-F, Mishimoto Cooler (no fan), MMTC-U

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.


IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

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