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Generac GP3300 — Service Spark Plug

Maintenance

For the Generac GP3300, from the Generac owner's manual.

Applies to: Generac GP3300

Parts for this job

Part numbers from the service-parts list for Generac GP3300. Verify against your serial number before ordering; some links are affiliate links.

Procedure

  1. Remove spark plug cover and disconnect spark plug wire.
  2. Clean area around spark plug.
  3. Remove and inspect spark plug.
  4. Inspect electrode gap with feeler gauge and reset spark plug gap to 0.6 - 0.7 mm (0.024 - 0.028 in).
  5. Install spark plug finger tight, and tighten an additional 3/8 to 1/2 turn using spark plug wrench.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Spark plug gap: 0.6-0.7 mm (0.024-0.028 in)
  • Spark plug: F7TC or equivalent; part number 0K95530157 Amazon eBay

Full service-parts list: Generac GP3300 →

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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