Isuzu UM6SD1TCX – 374hp Marinised Propulsion Engine
Isuzu Japan Factory Marinised Propulsion Engine
The ISUZU UM6SD1TCX is a high‑performance marinised propulsion engine engineered for demanding commercial marine operations. With a heritage of reliability and precision engineering, this 6‑cylinder, vertical in‑line diesel engine delivers exceptional power output, fuel efficiency, and durability in harsh marine environments.
Powerful, Efficient Performance
Designed with a 9.498‑litre displacement and turbocharged intercooler system, the UM6SD1TCX provides impressive propulsion across a range of duty cycles.
- Light‑duty output: 279 kW (380 PS) at 2300 min⁻¹
- Medium‑duty output: 254 kW (345 PS) at 2220 min⁻¹
This engine’s direct‑injection combustion ensures optimal fuel delivery and performance, supported by full‑flow lubrication and water‑cooled heat management for long, reliable service life.
Durability You Can Trust
With a solid engine weight of 1,125 kg (with MGN123) and a design optimized for continuous operation, the UM6SD1TCX is engineered to withstand the rigors of marine duty cycles.
Its robust construction includes an advanced intercooler system, multi‑plate hydraulic clutch, and constant‑mesh marine gear—ensuring dependable operation trip after trip.
Isuzu UM6SD1TCX – Engine Specifications
| Specification | Details |
|---|---|
| Configuration | 6‑cylinder, vertical in‑line, 4‑cycle diesel engine |
| Bore × Stroke | 117.9 × 145 mm (4.64 × 5.70 in) |
| Displacement | 9.498 L (579 cid) |
| Rated Output – Light Duty | 279 kW (380 PS) / 2300 min⁻¹ |
| Rated Output – Medium Duty | 254 kW (345 PS) / 2220 min⁻¹ |
| Application | Commercial use |
| Governor Type | Mechanical |
| Combustion Type | Direct injection |
| Aspiration | Turbocharged / Intercooler |
| Exhaust Gas Status | IMO Tier |
| Engine Weight | 1,125 kg (2,480 lb) with MGN123 |
| Fuel Used | Diesel fuel |
| Starter | 24 V – 7.4 kW |
| Alternator | 24 V – 40 A |
| Lubrication Method | Full‑flow pressure circulation |
| Cooling Method | Freshwater, full‑flow circulation (seawater indirect) |
| Heat Exchanger | Multi‑tube type (freshwater → seawater) |
| Intercooler | Multi‑tube type (seawater circulation) |
| Rotation Direction – Propeller Shaft | Right (clockwise when viewed from stern) |
| Idling Speed | 500 min⁻¹ |
| Marine Gear Model | MGN123 |
| Marine Gear – Reverse Type | Constant‑mesh type gear |
| Reduction Ratios | 1.52, 1.97, 2.57, 3.08 |
| Clutch Type | Wet, multi‑plate hydraulic type |
Standard Accessories
- Installation kit
- Kingston valve
- Control head
- Instrument panel
- V‑belt*
- Tool kit
- Owner’s manual
- Bilge pump
- Oil drain pump
- Blow‑by pipe
- Battery relay
- Extension harness (5 m)
- Seawater pump impeller*
* 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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