| Manufacturer / Brand | Doosan Infracore (HD Hyundai Infracore) |
| Model Designation | L136 |
| Engine Type | 4-Stroke Heavy-Duty Commercial Marine Diesel |
| Cylinder Configuration | Inline-6 |
| Total Displacement | 8.1 Liters (492 cu in) |
| Bore x Stroke | 111 x 139 mm (4.37 x 5.47 in) |
| Aspiration & Charge Air | Naturally Aspirated |
| Cooling System Architecture | Tubular Heat Exchanger with Raw Seawater Pump (Keel Cooling Optional) |
| Continuous Power Rating (P1) | 160 BHP (118 kW) @ 2,200 RPM |
| Maximum / Intermittent Power (P3/P4) | 170 BHP (125 kW) @ 2,500 RPM |
| Fuel Injection Platform | Mechanical Inline Multi-Plunger Injection Pump with Mechanical Governor |
| Cylinder Head Metallurgy | Monobloc High-Strength Cast Iron Cylinder Head with 2 Valves per Cylinder |
| Cylinder Liners | Replaceable Wet Sleeve Cast Iron Liners |
| Flywheel Housing & Flywheel | SAE 2 Housing with SAE 11.5 Flywheel |
| Electrical System & Ground | 24V Isolated Ground Marine Electrical System |
| Starter & Alternator Output | 24V 4.5 kW Electric Starter / 24V 50A Marine Alternator |
| Lube Oil Sump Capacity | 20.0 Liters (5.3 US gal), Heavy-Duty Wet Sump |
| Engine Coolant Capacity | 32.0 Liters (8.5 US gal) |
| Dry Weight (excl. gearbox) | 720 kg (1,587 lbs) |
| Overall Dimensions (L x W x H) | 1,288 x 706 x 934 mm (50.7 x 27.8 x 36.8 in) |
| Emissions Certification | IMO Tier II / CCNR Stage II |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Marine Gas Oil (MGO DMA/DMB) |
| Transmission / Outdrive Compatibility | Bare Engine Bobtail - Compatible with Dong-I (DMT 90A / DMT 100) and ZF / PRM Marine Transmissions |
| Factory Warranty Period | Doosan 1-Year or 2,000-Hour Commercial Marine Warranty |
| Application Research | Small coastal net boats, longliners, inland river cargo barges, harbor work punts, and utility passenger tenders operating continuous low-speed operations. |
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