'87-96 Air Cleaners Motorcraft FA1046 K&N 33-2023
IF THE IMAGE IS TOO SMALL, click it.
Top 2 are MAP (speed-density) '87-95; bottom 2 are MAF '94-96.
Left 2 are 4.9L I6 (and 7.5L V8 ); right 2 are 5.0L/5.8L V8.
9C658 is actually 2 pieces for 5.0L/5.8L.
V8 MAF . . . . . . . . . 4.9L MAF
Lightnings are V8 MAP regardless of year, but use an intake plenum more like a car's.
The best air filter is either MotorCraft, Purolator (probably the OEM for Ford/MotorCraft filters), Wix, or K&N (when properly oiled). This one was still spotlessly clean on the clean side: