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Confirm engine series and filter length in your model’s parts list before buying.

Generac 070185 family

Generac air-cooled oil filter line used across many 8–20+ kW standby units and several portable series. Current packaging commonly sold as 070185ES.

Shop 070185ES on Amazon Generators hub

Supersession notes

PartStatus / roleNotes from dealer / service text
070185B Older / shorter Earlier shorter can in the same family
070185D Older / shorter Grouped with B as shorter-length filters
070185E Extended length Longer filter; more oil volume than B/D
070185ES Current Dealer text: ES replaces E; “S” denotes orange can, otherwise same as E

Where it shows up

  • Air-cooled home standby Generac / Guardian-class units roughly 8–20 kW (often post-2008)
  • Some GT / GP / XG / XP portable series per dealer listings
  • Private-label air-cooled units that share Generac engines (Siemens, Centurion, etc. — verify model)

Fitment edges

  • B/D vs E/ES length differs — a “070185” search hit is not enough
  • Aftermarket Wix/Fram crosses exist in forums; dimensions and bypass calibration may differ
  • Warranty-sensitive installs usually stay on genuine Generac ES
  • Spark plugs bundled in kits (for example 0E7585 / RC12YC class) still need engine-specific confirmation

Sources