| Manufacturer / Brand | Cummins Marine |
| Model Designation | X15 Heavy Commercial Inboard |
| Engine Type | 4-Stroke Heavy-Duty Commercial Marine Diesel |
| Cylinder Configuration | Inline-6 Cylinder |
| Total Displacement | 14.9 Liters (912 cu in) |
| Bore x Stroke | 137 x 169 mm (5.39 x 6.65 in) |
| Aspiration & Charge Air | Turbocharged with Water-Cooled Aftercooler (SCAC) |
| Cooling System Architecture | Heavy-Duty Marine Tubular Heat Exchanger (Keel Cooled Optional) |
| Continuous Power Rating (P1) | 500 BHP (373 kW) @ 1,800 RPM |
| Maximum / Intermittent Power (P3/P4) | 600 BHP (447 kW) @ 1,900 RPM |
| Fuel Injection Platform | Cummins XPI High-Pressure Common Rail (HPCR) Injection System |
| Cylinder Head Metallurgy | Single-Piece Cast Iron 24-Valve Head (4 Valves per Cylinder) |
| Cylinder Liners | Replaceable Wet Sleeve Cast Iron Cylinder Liners |
| Flywheel Housing & Flywheel | SAE 1 or SAE 0 Flywheel Housing with SAE 14 or SAE 18 Flywheel |
| Electrical System & Ground | 24V Isolated Ground Marine Electrical System |
| Starter & Alternator Output | 24V 9.0 kW Electric Starter / 24V 100A Marine Alternator |
| Lube Oil Sump Capacity | 45.4 Liters (12.0 US gal) Deep Cast Iron Commercial Sump |
| Engine Coolant Capacity | 60.0 Liters (15.9 US gal) |
| Dry Weight (excl. gearbox) | 1,710 kg (3,770 lbs) |
| Overall Dimensions (L x W x H) | 1,712 x 1,092 x 1,234 mm (67.4 x 43.0 x 48.6 in) |
| Emissions Certification | EPA Marine Tier 3, IMO Tier II Compliant |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Marine Gas Oil (MGO DMA/DMB), B20 |
| Transmission / Outdrive Compatibility | Bare Engine Bobtail - Compatible with Twin Disc MG-516, ZF 360A, or Reintjes WAF |
| Factory Warranty Period | 2-Year / Unlimited-Hour Base Commercial Marine Warranty |
| Application Research | Offshore supply vessels (OSV), heavy commercial fishing trawlers, deep-sea scallopers, cargo freighters, and commercial passenger ferries |
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