Billet Thermostat Housing W/ Seal for 1999-2003 Powerstroke 7.3L by KB Diesel Performance.
Engineered with CAD
Precision CNC Machined from Billet Aluminum
Set the weak stamped steel housing aside & upgrade to our billet housing!
Includes
1. Billet Thermostat Housing / Water Outlet
1. Heavy Nitrile Seal 
3. Replacement Bolts
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Fits: 1999-2003 7.3L Ford Powerstroke engines.
Replaces P/N's: 031508299047, RH63, BK 6051769, 203 Degree, F81Z8592AA , 902-1004, 1824521C, 85190, 815558