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Home›Repair guides›Generac›Service Engine Air Cleaner

Generac NP-66G — Service Engine Air Cleaner

Maintenance

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 KNOB counterclockwise to loosen.
  2. Remove COVER, FOAM PRE-CLEANER and PAPER FILTER.
  3. Remove foam pre-cleaner from cover.
  4. Wash foam pre-cleaner in liquid detergent and water.
  5. Wrap foam pre-cleaner in a cloth and squeeze dry.
  6. Saturate foam pre-cleaner in engine oil; squeeze out excess oil.
  7. Install foam pre-cleaner into cover, followed by paper filter with tabs locked into slots.
  8. Insert bottom locking tab of cover into slot and install cover assembly.

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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