1978 Ford F-150 Custom Regular Cab 4x2 8-foot Flareside box — 5.8-liter V8

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 oil filter

  Exact reference available

  Motorcraft catalog fitment for 1978 F-150

  Motorcraft FL-1A / Ford D9AZ-6731-A

  Applies to: 1978 · United States · Motorcraft's application table covers the F-150 nameplate and model-year range but does not print an engine-by-engine split. Confirm the installed filter, engine, and VIN before ordering.

  Source: Motorcraft — Original Equipment Performance oil-filter application data · PDF page 3 — FL1A / D9AZ-6731-A application table, Ford F-150 1975–1996 · checked 2026-08-30

  Verified ordering references

  • Service replacementMotorcraft FL-1A

    Qty. 1 · Spin-on engine-oil filter; Ford service number D9AZ-6731-A · catalog-listed

    Motorcraft's application table lists FL1A / D9AZ-6731-A for Ford F-150 model years 1975–1996. It does not separate the 1978 engine choices, so confirm the installed filter, engine, and VIN before ordering.

    Catalog: Motorcraft — Original Equipment Performance oil-filter application data · PDF page 3 — FL1A / D9AZ-6731-A application table, Ford F-150 1975–1996 · checked 2026-08-30

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