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The Yamaha EF4500iSE is a gasoline portable inverter generator rated at 4,000 watts continuous and 4,500 watts peak, with a 357cc OHV engine and a 4.5-gallon tank. It stands out for its brushless inverter design, which delivers clean power for sensitive electronics, plus electric start with automatic choke and Economy Control for fuel savings. At 209 lbs dry it is a heavy, two-person lift, and its 58-60 dBA rating is quiet for its class. The best new price is $3,399.00 at Amazon as of November 5, 2026, with 4 stores carrying it new.
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Lowest price we've seen: $3,399.00 on Nov 5 at Amazon. Tracked across 2 stores since Nov 5.
Yamaha EF4500ISE Brushless 4000 Watt Portable Inverter Generator Electric Start
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Warranty Information
Full factory warranty applies to all customers , including island locations.
The only exception is warranty shipping to and from island locations, which is not included.
We offer a low‑cost 5‑year Replacement Shipping Protection plan that covers those shipping costs.
PLEASE NOTE: This item is NOT RETURNABLE.
SKU : YAMEF4500ISE
GENERATOR & INVERTER FUEL TYPE: Gasoline
The Yamaha EF4500iSE inverter generator is engineered to deliver reliable power for commercial and leisure applications. With a rated output of 4000 watts and maximum output of 4500 watts, it ensures consistent electricity for demanding equipment.
Its computer‑controlled inverter provides clean, stable power suitable for sensitive electronics. The generator features a durable 4‑stroke OHV engine, designed for efficiency and longevity. A soundproof design keeps operation quiet, making it ideal for both indoor and outdoor use.
The electric starter and auto choke system simplify operation, while the oil warning system protects the engine from damage. A fuel gauge allows easy monitoring, and the included twin bar and four wheels with parking brake enhance portability.
Yamaha’s reputation for quality ensures this generator meets high standards of performance and durability.
Key Benefits & Advanced Features
Computer‑controlled inverter ensures stable electricity
4000 watt rated output for reliable performance
Electric starter for effortless ignition
Auto choke system for easy starting
Oil warning system prevents engine damage
Fuel gauge for quick monitoring
Soundproof design reduces noise levels
Durable 4‑stroke OHV engine for longevity
