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The Generac 5665 Maintenance Kit is a comprehensive, factory-original service kit designed specifically for 20kW home standby generators with 999cc air-cooled OHVI engines. It includes all essential components—air filter, oil filter, spark plugs, oil funnel, chamois, and reminder sticker—to perform scheduled maintenance every 200 hours or 2 years, ensuring optimal performance, extended engine life, and warranty compliance.


















| ASIN | B003TSFYHY |
| Additional Features | Portable |
| Brand Name | Generac |
| Color | Orange |
| Customer Reviews | 4.8 4.8 out of 5 stars (543) |
| Engine Displacement | 999 Cubic Centimeters |
| Engine Power Maximum | 20 Kilowatts |
| Engine Type | 4 Stroke |
| Frequency | 60 Hz |
| Fuel Type | Gasoline |
| Global Trade Identification Number | 00696471056655 |
| Ignition System Type | Electric start |
| Included Components | Air Filter, Oil Funnel, Spark Plug, Chamois, Instruction Manual, Reminder Sticker |
| Item Type Name | Generac 5665 Air Cooled Home Standby Generator Maintenance Kit, 20kW, |
| Item Weight | 1.55 Pounds |
| Manufacturer | Generac Power Systems Inc |
| Manufacturer Part Number | 5665 |
| Model Name | Generac 5665 Air Cooled Home Standby Generator Maintenance Kit, 20kW, 999cc Kit (For HSB models prior to 2013) |
| Model Number | 5665 |
| Output Wattage | 20 Kilowatts |
| Power Source | Gasoline |
| Recommended Uses For Product | Residential |
| Running Wattage | 20 Kilowatts |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 696471056655 |
| Unit Count | 1 Count |
| Wattage | 20 KW |
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