FAST brass bushing 1/2MPT x 3/8F coolant temperature sensor fitting, intended as an adapter used on EZ‑EFI systems to mount or adapt coolant temperature sensors to different intake manifolds. It allows the coolant sensor to be fitted where manifold thread or port differences exist during EFI installations or manifold swaps.
FAST Brass Bushing 1/2Mpt X 3/8F