Generac 9734 / NP-66LPG — Change Engine Oil
Maintenance
For the Generac 9734 / NP-66LPG, from the Generac owner's manual.
Applies to: Generac 9734, Generac NP-66LPG, Generac GN-480 engine
Parts for this job
- 70185 Oil filter — Generac 9734 Amazon eBay $18.99 NAPA $9.09 KuduParts $11.00
- 70185 Oil filter — Generac NP-66LPG Amazon eBay $18.99 NAPA $9.09 KuduParts $11.00
Part numbers from the service-parts lists for Generac 9734, Generac NP-66LPG. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Warm up engine for at least five minutes, then shut down.
- With engine still warm, remove cap from oil drain hose and drain oil completely into a suitable container.
- When oil has drained, install and tighten drain hose cap.
- Remove oil dipstick and fill crankcase with recommended oil; crankcase holds about 1.4 liters.
- Do not fill above FULL mark; install and tighten dipstick cap before operating.
Tools required
- suitable container Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- SAE 10W-30 Amazon eBay $54.99 'For Service SF'
- 1.4 liters
Full service-parts list: Generac 9734 →, Generac NP-66LPG →
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.