15mm head with the word Metric stamped on it. The rubber seal comes with the bolt its made on it and the thread is 12mm X 1.75-6g thread, Without low oil sensor
RH; Tubular design. Requires Cap N807040-S2 when using in place of F67Z-9430-CA (without EGR boss). Use only with F67Z-9431-BA Tubular LH manifold., FROM 11/4/96
FordPartsGiant.com offers the wholesale prices for genuine 1998 Ford Explorer parts. Parts like Engine - Complete are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.0L. Transmission: 5AT 5R55E.