1975Ford F-150

Service topics

9

Factory intervals

9

Fitment-scoped

9

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

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 5,000 mi / 8,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — engine oil: 5,000 miles · checked 2026-08-26

• 02

  Engine oil filter

  Exact reference available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 10,000 mi / 16,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — engine-oil filter: 10,000 miles · checked 2026-08-26

  Motorcraft catalog fitment for 1975 F-150

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

  Applies to: 1975 · 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 1975 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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• 03

  Fuel filter

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 20,000 mi / 32,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — fuel filter: 20,000 miles · checked 2026-08-26

• 04

  Engine air-cleaner element

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 20,000 mi / 32,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — air cleaner: 20,000 miles · checked 2026-08-26

• 05

  PCV valve

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 20,000 mi / 32,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — PCV valve: 20,000 miles · checked 2026-08-26

• 06

  Spark plugs

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 20,000 mi / 32,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — spark plugs: 20,000 miles · checked 2026-08-26

• 07

  Engine coolant replacement

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 40,000 mi / 64,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — coolant replacement and cooling-system flush: 40,000 miles · checked 2026-08-26

• 08

  Chassis lubrication

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 30,000 mi / 48,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — chassis lubrication: 30,000 miles · checked 2026-08-26

• 09

  Front wheel-bearing repack

  Sourced interval available

  Partial same-year F-Series powertrain reference, not a complete 1975 F-150 schedule or a current part-number recommendation.

  Applies to: 1975 · 300 cu in / 4.9L inline-six · manual · United States · Same-year Ford F-100 300-six/manual reference. The federal sheet does not identify an F-150, so use these rows only as partial shared-powertrain evidence and confirm the F-150 owner's literature before service.

  Published interval: 30,000 mi / 48,000 km

  Source: U.S. DOT/NHTSA — 1975 Ford F-100 300-six/manual scheduled-maintenance matrix · PDF page 254 (printed E-248), 1975 Ford F-100, 300-cu.-in. inline-six, manual transmission — repack front wheel bearings: 30,000 miles · checked 2026-08-26