Isuzu N-Series gas trucks are powered by a 6.6-liter V8 that has been engineered to give you the best of both worlds—it meets published Federal emission standards through the 2026 model year while generating more power and torque than previous N-Series gasoline engines.

The rigorous driving demands of medium-duty trucks require adurable powertrain. The N-Series meets this need with a cast iron block specifically designed for heavy-duty use. In addition, larger piston-cooling jets lower the engine’s temperature to help the engine run cooler and more efficiently.

Efficiency is a hallmark of this power plant. An aluminum head design incorporates direct injection, variable valve timing, and an air intake humidity sensor. This engine is a fuel sipper, not a fuel gulper.

The 6.6-liter V8 is not only clean and efficient—it’s also powerful. The engine generates an impressive 350 horsepower and 425 lb.-ft. of torque; the broader torque band gives the driver plenty of power and great response even with full loads. This engine runs smoother and quieter than previous gasoline powertrains in Isuzu trucks, lowering cabin noise and vibration for an enhanced driving experience. Isuzu N-Series gas trucks, powered by an engine that’s clean, powerful, durable, efficient and quiet: the best of both worlds.

Class: 4

GVWR: 14,500 pounds

GCWR: 20,500 pounds

Body/Payload Allowance: 8,237 to 8,947 lbs.

Engine: 6.6L GMPT L8T (GEN V) 8-cylinder; 350 HP @ 4,500 RPM; 425 lb-ft @ 3,800 RPM

Brakes: Vacuum/Hydraulic with 4-channel ABS

Tires: 225/70R 19.5F (12-pr)

Fuel Tank: 38.6 gallons in-frame

Transmission: 6-speed automatic

Body Application: Up to 24 feet

Cab: Seating for 3 (standard)/Seating for 7 (crew)

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