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Frostbite Radiator Hose Fitting - 1.50 Inch - Fits Frostbite Engine Swap Radiators

-16AN ORB Threaded Radiator Inlet/Outlet hose fitting 1.50" for Frostbite Engine-Swap Radiators


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High-Horsepower street cars and truck can be a challenge to keep cool. A proper cooling system starts with the right radiator. Aluminum Radiators cool more effectively and weight less than older OEM style copper/brass units. These screw-in hose fittings are specifically designed to work with the Frostbite Engine-Swap Radiators.


  • Sold Individually
  • Choose from 1.25", 1.50", and 1.75" fittings based on your cooling flow demands
  • Offers flexability to increase flow capacity without altering the radiator...simply screw-in new fitting
  • Made in the USA
  • Deisgned to work as screw-in inlet/outlet radiator fittings for LS-Swap Radiaotr applications
  • Fittings come with O-ring for superior sealing


Core DimensionN/A
Emission Code5
Fitting Size1.50"
Hose Location InletPassenger
Hose Location OutletPassenger
Mounting TypeThread In
Product TypeRadiator Fitting
Part NumberFB401

Service Parts



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

While there is no specific size to use with a particular swap, see below for general guidelines MG LS-Series Engine Recommendations: 4.8L GM LS Engine 1.25" inlet (FB400), 1.50" outlet (FB401) 5.3L GM LS Engine 1.50" inlet (FB401). 1.50" outlet (FB401) 6.0L GM LS Engine 1.50" inlet (FB401), 1.75" outlet (FB402) 6.2L GM LS Engine 1.50" inlet (FB401), 1.75" outlet (FB402) 7.0L GM LS Engine 1.75" inlet (FB402), 1.75" outlet (FB402) This again only serves as a guide and any size fitting can be utilized with any LS-Swap Radiator.
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