Material: High temperature resistant and corrosion resistant metal to ensure durability. Purpose: Accurately measure radiator temperature to optimize engine performance. Installation: The replacement number is E5TZ-18599-A, leak-free and firm. Design: Elbow design adapts to complex layout for easy connection. Applicable: Applicable to 1985-1997 for Ford F-150 F-250 F-350 and for Bronco E-150 E-250 E-350 models