Name: Isuzu 6WG1X
Brand: Isuzu
Availability: InStock

Overview#

The Isuzu 6WG1X is a 15.681-liter, 6-cylinder inline 6 diesel engine used in commercial and industrial generator applications in the 320-364 kW class. Turbocharged for reliable power density across standby and prime-rated duty cycles.

This engine powers generators from Airman, Echo, making it one of the more widely deployed prime movers in its power class for the commercial standby market.

Generators using this engine#

Airman EBOSS 400-220 (336 kW)
Airman SDG400 (336 kW)
Echo DGK400F (364 kW)

Found in these gensets

Generator models that ship with or are commonly paired with the Isuzu 6WG1X.

Airman

Airman EBOSS 400-220

Only integrated diesel-battery hybrid portable generator on the market — LTO batteries, unlimited paralleling, dramatic fuel and emissions reduction.

336 kW standby · Diesel · Liquid-cooled

Noise-sensitive urban construction, events, and sites where fuel cost and emissions matter.

400 kVA hybrid energy system with 220 kWh LTO battery storage. Flagship diesel-battery hybrid.

3-phaseconstructionrental-fleet

Airman

Airman SDG400

0.001% warranty claim rate, 110% fluid containment standard, 21.3-hr runtime at 320 kW — flagship Isuzu 6WG1X power with Hokuetsu precision for mission-critical applications.

336 kW standby · Diesel · Liquid-cooled

Flagship 320 kW portable for major construction, data center temporary power, commercial emergency standby, and critical infrastructure requiring reliability and environmental compliance.

320 kW prime diesel portable generator. Isuzu 6WG1X engine with 21.3-hour runtime, 491-gallon tank, and 110% fluid containment.

Tier 4 Final3-phaseconstructionrental-fleet

Echo

Echo DGK400F

Patented SimulPhase — simultaneous single and three-phase output from one unit, eliminating step-down transformers on mixed-load sites.

364 kW standby · Diesel · Liquid-cooled

Mixed-load construction sites where SimulPhase eliminates transformer cost, and rental fleets discovering Shindaiwa heritage.

400 kVA portable diesel generator. Flagship Echo/Shindaiwa unit with SimulPhase technology.