Isuzu UM6WG1TCX – 720hp Marinised Propulsion Engine
Isuzu Japan Factory Marinised Propulsion Engine
The ISUZU UM6WG1TCX marine propulsion engine is engineered to deliver uncompromising performance for commercial maritime operations. Built on ISUZU’s long‑standing reputation for durability, this 6‑cylinder, vertical in‑line, 4‑cycle diesel engine provides the robust power and efficiency required for demanding marine environments.
Designed for medium‑ and light‑duty applications, the UM6WG1TCX produces 515 kW (700 PS) at 2060 rpmin medium‑duty mode and 537 kW (730 PS) at 2100 rpm for light‑duty operations. Its 15.68‑litre displacement, turbocharged and intercooled aspiration system, and direct‑injection combustion ensure optimal fuel efficiency and strong torque across the operating range.
The engine meets IMO Tier II emissions standards, reflecting ISUZU’s commitment to environmentally responsible design. With a rugged construction and a total weight of 2,100 kg (with the MGN80B marine gear), it is built for long service life in heavy‑duty marine conditions.
To support continuous maritime operations, the UM6WG1TCX incorporates full‑flow pressure lubrication, freshwater cooling with a seawater‑assisted heat exchanger, and a multi‑tube intercooler. The right‑hand (clockwise) rotation direction makes it compatible with standard marine propulsion layouts.
ISUZU also equips the engine with a practical suite of accessories, including an installation kit, control head, tool kit, seawater pump impeller, extension harness, and more—ensuring smooth integration into your vessel.
Isuzu UM6WG1TCX – Engine Specifications
| Engine Model | UM6WG1TCX |
|---|---|
| Configuration | 6‑cylinder, vertical in‑line, 4‑cycle diesel engine |
| Bore × Stroke | 147 × 154 mm (5.78 × 6.06 in) |
| Displacement | 15.681 L (957 cid) |
| Rated Output – Medium Duty | 515 kW (700 PS) / 2060 rpm |
| Rated Output – Light Duty | 537 kW (730 PS) / 2100 rpm |
| Application | Commercial use |
| Governor Type | Mechanical |
| Combustion Type | Direct injection |
| Aspiration | Turbocharged / Intercooled |
| Exhaust Gas Standard | IMO Tier II |
| Engine Weight | 2,100 kg (4,630 lb) with MGN80B marine gear |
| Fuel Type | Diesel fuel |
| Starter | 24 V – 7.4 kW |
| Alternator | 24 V – 50 A |
| Lubrication Method | Full‑flow pressure circulation |
| Cooling Method | Freshwater, full‑flow pressure circulation (seawater indirect) |
| Heat Exchanger | Multi‑tube type (freshwater → seawater) |
| Intercooler | Multi‑tube type (seawater circulation) |
| Rotation Direction (Crankshaft) | Right (clockwise) viewed from front of engine |
| Rotation Direction (Propeller Shaft) | Right (clockwise) viewed from stern |
| Idling Speed | 600 min⁻¹ (rpm) |
| Marine Gear Model | MGN80B |
| Marine Gear Type | Constant‑mesh reverse gear, wet multi‑plate hydraulic clutch |
| Reduction Ratios | 1.68, 2.03, 2.55, 2.96, 3.31, 3.48 |
Standard Accessories
- Installation kit
- Battery relay
- Control head
- V‑belt*
- Blow‑by pipe
- Extension harness (5 m)
- Seawater pump impeller*
- Bilge pump
- Tool kit
- Instrument panel
- Owner’s manual
*Spare parts.
Optional Accessories
- Extension harness (5 m)
- Control cable (4 m, 6 m, 10 m, 12 m)
- Stop cable (4 m, 6 m, 8 m)
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Zenith Engineering
Zenith Engineering provides general engineering services to local and interstate customers. In our workshop we have access to CNC machinery and manual lathes. With our highly experienced engineering team and ...
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