Zenith Engineering

Isuzu Japan Factory Marinised Propulsion Engine

The ISUZU UM6WG1TCAB1 marine diesel engine delivers the strength, endurance, and efficiency required for today’s commercial marine environments. Built on ISUZU’s proven 6‑cylinder, vertical in‑line, 4‑cycle diesel platform, this engine offers exceptional reliability backed by decades of engineering excellence. With a robust displacement of 15.68 litres and advanced turbocharged, intercooled aspiration, it delivers consistent power across continuous heavy‑duty, heavy‑duty, and medium‑duty operating profiles.

High Output for Demanding Workloads

Available in three duty ratings—AB1, AB2, and AB3—the UM6WG1TC‑AB offers impressive power options:

• 377 kW (512 PS) at 1800 rpm for continuous heavy‑duty use
• 447 kW (608 PS) at 2000 rpm for heavy‑duty operation
• 485 kW (659 PS) at 2100 rpm for medium‑duty demands
  These configurations give operators the flexibility to match their propulsion system to specific vessel requirements.

Engineered for Commercial Reliability

The engine’s direct‑injection combustion and mechanical governor ensure dependable performance and excellent fuel efficiency across varying load conditions. A multi‑tube heat exchanger and intercooler provide stable cooling using freshwater and seawater circulation, making the engine ideal for continuous marine duty cycles.

Designed for commercial marine applications, the UM6WG1TC‑AB also meets IMO Tier II emissions standards—helping operators maintain compliance without sacrificing power.

Built for Ease of Operation and Maintenance

With a full suite of standard accessories—including an installation kit, bilge pump, oil drain pump, control head, zinc bars, and more—the UM6WG1TC‑AB arrives ready for integration into new builds or repowers. Optional extension harnesses, control cables, and stop cables provide additional flexibility.

A Proven Workhorse for Marine Professionals

With a dry engine weight of 1,500 kg (or 1,920 kg with the MGN80B gear), the UM6WG1TC‑AB brings industrial‑grade durability to vessels that demand nonstop performance. Whether powering commercial fishing vessels, workboats, transport craft, or utility fleets, this engine provides the torque, reliability, and longevity that operators count on day after day.

Isuzu UM6WG1TC‑AB Engine Specifications

Standard Accessories

• Installation kit
• Bilge pump
• Blow‑by pipe
• Oil drain pump
• Control head
• V‑belt*
• Zinc bars*
• Battery relay
• Instrument panel
• Tool kit
• Owner’s manual
• Extension harness (5 m)
• Seawater pump impeller*

*Spare parts

Optional Accessories

• Extension harness (5 m)
• Control cables (4 m, 6 m, 10 m, 12 m)
• Stop cables (4 m, 6 m, 8 m)