Standard Features
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Conquer power.

Introducing the new EF5500P Industrial Series generator with GFCI protected receptacles. This versatile dual 120/240 volt unit is ideal for primary power sources for industrial and commercial applications such as construction sites but can also be used for home, cottage or business emergency backup power too. The EF5500P sets new standards for performance and value.


Model Year
Starting at MSRP


29.1 in. (740 mm) handle folded
42.1 in. (1,070 mm) handle extended
31.5 in. (800 mm)
28.3 in. (720 mm)
209 lbs. (95 kg) dry


MZ360, OHV, 2-valve, 4-stroke
357 cc
Manual recoil with auto decompressor
Air (fan-assist)
Run Time
9 hrs. @ rated load
Fuel Type
87 octane regular gasoline
Fuel Tank Capacity
26 l
Oil Capacity
1.1 l


Maximum AC Output: 5,500W
Rated AC Output: 4,500W
Regulator: Damper winding
Maximum / Rated AC Output: 44 / 36A @ 120V; 22.9 / 18.75A @ 240V
AC Receptacle: 15A plus 15A for 125V; 30A for 125V; 30A for 125V and 250V

Standard Features

 Powered by Yamaha's MZ360; 357 cc, air-cooled (fan assist), OHV, 2-valve, 4-stroke, single cylinder engine with transistor controlled (TC) ignition  
 Manual recoil starting with auto decompression system for a light, easy recoil starter pull  
 Lightweight piston and offset cylinder design reduce frictional losses for improved fuel economy  
 Manual choke  
 Maintenance-free brushless alternator offers superior reliability and reduced maintenance  
 Dual 120 and 240V output makes the EF5500P very versatile  
 Damper Winding alternator reduces wave form distortion for "cleaner" power (power is almost as clean as an inverter)  
 Ground Fault Circuit Interruption (GFCI) senses a leak to ground and automatically shuts down power to reduce risk of electric shock  
 Rated AC output for continuous use is 4,500W / 36A at 120V and 4,500W / 18.7A at 240V  
 Economy Control System (when turned on) lowers the engine rpm when there is no load to conserve fuel and reduce noise and engine wear  
 Yamaha's Oil Watch Warning System automatically shuts off the engine when oil level is low and will not re-start until oil is added, preventing costly engine damage and enhancing long-term durability  
 Multi-function digital volt and hour meter  
 Electrical "noise" suppressor reduces electrical interference with TVs and radios  
 Easy access, washable foam air filter reduces maintenance costs  
 Easy access oil drain plug  
 Cleanable spark arrestor stops sparks exiting from the exhaust  
 On-off fuel petcock lets you shut off the gas to run the carb dry for storage, helping to prevent stale fuel problems, which are becoming more common with ethanol based fuels  
 Large fuel fill hole for easy filling. Fuel gauge is standard  
 Rubber vibration isolation mounts reduce vibration for smoother operation and reduced noise  
 Rugged perimeter steel frame protects the generator, engine and battery from damage  
 Folding handle and lift hook for improved portability  
 Never flat, non-pneumatic tires mounted to rugged steel axles  
 CSA approved (Canadian Standards Association)  
 Meets or exceeds EPA and CARB Tier 3 emission standards  

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*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
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