1977 Ford Mustang Base Two-door notchback coupe Manual

Service topics

7

Factory intervals

6

Fitment-scoped

7

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 and filter

  Sourced interval available

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 7,500 mi / 6 months · whichever comes first

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

• 02

  Engine oil filter

  Exact reference available

  Manufacturer application-catalog fitment only; this does not establish an oil-change interval.

  Applies to: 1977 · US

  2.3-liter inline-four

  Baldwin B2

  Applies to: 1977 · 2.3-liter inline-four · US

  Source: Baldwin Filters — Automotive Applications catalog (2017) · Pre-1980 Applications section — Ford 1977, Mustang 2.3-liter inline-four row · checked 2026-09-01

  Verified ordering references

  • Service replacementBaldwin B2

    Qty. 1 · Engine oil filter · catalog-listed

    Baldwin's manufacturer application table lists this filter for the stated model year and engine. Confirm the VIN and installed engine before ordering.

    Catalog: Baldwin Filters — Automotive Applications catalog (2017) · Pre-1980 Applications section — Ford 1977, Mustang 2.3-liter inline-four row · checked 2026-09-01

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• 03

  Spark plugs

  Sourced interval available

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 30,000 mi

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

• 04

  PCV valve

  Sourced interval available

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 15,000 mi

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

  Crankcase emission filter

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 30,000 mi

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

• 05

  Engine coolant

  Sourced interval available

  The recovered transcription's time wording is ambiguous, so only its unambiguous 30,000-mile table mark is encoded.

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 30,000 mi

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

• 06

  Engine air-cleaner filter

  Sourced interval available

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 30,000 mi

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05

• 07

  Accessory drive belts — inspect

  Sourced interval available

  Applies to: 1977 · US · Year-level published schedule; no engine-specific interval exceptions are stated in this recovered table

  Published interval: 30,000 mi · inspection

  Source: MustangSpecs — 1977 Mustang maintenance-table transcription · Maintenance Schedule table, 7,500–60,000-mile columns · checked 2026-08-05