2025 Generac Power Systems Portable Generators GP18000EFI
- Year 2025
- Make Generac Power Systems
- Model Portable Generators
2025 Generac Power Systems Portable Generators GP18000EFI
Equipped with an 816cc engine with Electronic Fuel Injection, the GP18000EFI delivers power efficiently, providing up to 9 hours of runtime at 50% load. TruePower™ Technology safely powers sensitive electronics, appliances and tools while onboard COsense® Technology provides powerful protection against hazardous carbon monoxide. The GP18000EFI also features electric start (battery included), low-oil shutdown protection, circuit breaker protected outlets and an hour meter with maintenance resets. The included never-flat wheel kit and available lifting eye accessory make transportation easy around the home or jobsite.
Features may include:
- COsense® Technology – Stops. Alerts. Saves. Powerful protection against hazardous carbon monoxide
- Generac 816cc EFI Engine – Delivers the right amount of power to get the best performance and efficiency out of your engine
- TruePower™ Technology – With less than 5% THD, safely powers sensitive electronics and tools
- Low-Oil Pressure Shutdown – Automatically safeguards engine from damage
- Large Capacity Fuel Tank – With incorporated fuel gauge, provides durability and extended run times
- Homelink™ Manual Transfer Switch Compatible – When paired with a manual transfer switch, the GP18000EFI is powerful enough to provide whole home backup and is a great alternative to a Home Standby Generator.
- Hardened 1 ¼” Steel Tube Cradle – For added strength and durability
- Hour Meter – Tracks maintenance intervals
- Heavy-Duty, Never-Flat Wheels – For reliable portability
- Electric Start – Battery Included – Provides hassle-free start-up
Engine
Displacement
816cc
Engine Type
OHVI
Rated Engine Speed
3600 RPM
Lubrication
Oil Pump
Starter
Electric
Wheels & Tires
Wheels
12” Never-flat Wheels
Electric
Electrical
AC Rated Output Running Watts: 18000 | AC Maximum Output Starting Watts: 22500 | Rated AC Voltage: 120/240 VAC | Rated AC Frequency 60 Hz | Rated VAC Amperage: 75 /150
Operational
Run Time Per Tankful
at 50% of Rated Load: 9 Hours
Dimensions
Length
27.2 in (692 mm) | Ext.: 45 in (1151 mm) | Carton: 28.3 (720)
Width
27 in (684 mm) | Carton: 21.7 (550)
Height
26.5 in (674mm) | Carton: 28 (710)
Capacities
Oil capacity
w/ Filter Change: 2.2 qt (2.1 L) | w/o Filter Change: 2.0 qt (1.95 L)
Fuel Capacity
14.2 qt (54.0 L)
Weights
Weight
172 lbs (78 kg)
Weight, As Shipped
190 lbs (86 kg) | with Cord: 196 lbs (89 kg)
Features
Oil Type
10W-30 / SAE30
Choke
Low Oil Shutdown Method: Low Pressure | Start Switch Type: Off/Run/Start Switch | Switch Location: On Control Panel | Fuel Gauge: Built-In Tank | Handle Style: Folding, Locking
Warranty
Warranty
Residential: 3 Year Limited | Commercial: 2 Year Limited