GENERAC 5661 Home Standby Air-Cooled Generator Maintenance Kit

The Generac 5661 kit is built for air-cooled home standby units with the 7kW, 410cc engine. It is the Guardian-series maintenance kit for that engine, so if your standby unit uses a different displacement or is liquid-cooled, it is not the right kit.

Generac's recommended interval for the air-cooled unit this kit serves is every 200 hours of run time or every 2 years, whichever comes first. Facilities that exercise a standby set weekly and ride out a few long outages hit the hour mark first; most residential and light commercial installs hit the 2-year mark first. Your generator owner's manual governs the final schedule.

Yes, the oil filter is a spin-on canister, so it threads onto the engine's filter boss and comes off with a standard filter wrench or by hand. No filter housing to open and no separate gasket to seat.

Plan on supplying your own. The kit's contents are the air filter, oil filter, spark plug, chamois and reminder sticker. Have an oil funnel and a plug socket in the truck before you go out to the unit.

Nothing about the kit restricts quantity purchasing, and at roughly 3 lbs assembled it stores easily on a shelf or in a service van. One kit covers one 200-hour or 2-year service on one 7kW air-cooled unit, so buy one per generator per service cycle. The kits are made in the United States.