FORD 1998 Explorer - Manual (Page 197)

MOTORCRAFT PART NUMBERS
Component 4.0L EFI
engine 4.0L SOHC
engine 5.0L engine
Air filter FA-1616 FA-1658 FA-1658
Fuel filter FG-872 FG-872 FG-872
Battery BXT-65-650 BXT-65-650 BXT-65-650
Oil filter FL-1A FL-1A FL-820S
PCV valve EV-225 EV-225 EV-152
Spark plugs* AGRF-22P AGRF-22P AWSF-32EE
* Refer to Vehicle Emissions Control Information (VECI) decal for
spark plug gap information.
Capacities and specifications
197