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Home›Repair guides›Generac›Changing Oil Filter

Generac NP-66G — Changing Oil Filter

Maintenance · Engine oil filter

For the Generac NP-66G, from the Generac owner's manual.

Applies to: Generac NP-66G, Generac GN-480 engine

Parts for this job

Part numbers from the service-parts list for Generac NP-66G. Verify against your serial number before ordering; some links are affiliate links.

Procedure

  1. Turn oil filter counterclockwise to remove.
  2. Coat gasket of new filter with engine oil.
  3. Turn new filter clockwise until gasket contacts filter adapter, then tighten an additional 3/4 to one turn by hand.
  4. Run engine and check for leaks.

Specs & values

  • Replace after first 25 hours, every 100 operating hours thereafter

Full service-parts list: Generac NP-66G →

Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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