1991 Ford F-150 Custom SuperCab 4x4 8-foot Styleside box — 4.9-liter EFI inline-six

Service topics

1

Factory intervals

0

Fitment-scoped

1

Exact references

1

Before orderingIdentify your engine, options and build date.Part numbers and sizes can change within one model year. Shopping links appear only for catalog-backed references; still verify the listing against your vehicle before ordering.

• 01

  Engine air filter

  Exact reference available

  Applies to: 1991 · 4.9-liter EFI inline-six, 5.0-liter EFI V8, 5.8-liter EFI V8 · United States

  Source: Walmart Business catalog — FA-1046 interchange and engine-specific F-150 fitment · Vehicle fitment — F-150 4.9L and 5.0L 1987–1996; 5.8L 1988–1996; OE interchange FA-1046 · checked 2026-08-27

  4.9L inline-six, 5.0L V8, and 5.8L V8

  Motorcraft FA-1046

  Applies to: 1991 · 4.9-liter EFI inline-six, 5.0-liter EFI V8, 5.8-liter EFI V8 · United States

  Source: Walmart Business catalog — FA-1046 interchange and engine-specific F-150 fitment · Vehicle fitment — F-150 4.9L and 5.0L 1987–1996; 5.8L 1988–1996; OE interchange FA-1046 · checked 2026-08-27

  Verified ordering references

  • Service replacementMotorcraft FA-1046

    Qty. 1 · Engine air-filter element · catalog-listed

    The catalog cross-references FA-1046 for these 1991 F-150 gasoline-engine applications; confirm the VIN and installed air-cleaner housing before ordering.

    Catalog: Walmart Business catalog — FA-1046 interchange and engine-specific F-150 fitment · Vehicle fitment — F-150 4.9L and 5.0L 1987–1996; 5.8L 1988–1996; OE interchange FA-1046 · checked 2026-08-27

    Search this part on Amazon