Caterpillar CAT C12.9 Marine Propulsion Engine
$34,160.00
In Stock
Caterpillar CAT C12.9 Specs
| Brand | Caterpillar |
| Full Model Code / Configuration | CAT C12.9 (Vertical in-line 6-cylinder marine diesel engine) |
| Country of Origin | USA |
| Engine Series / Family | C12 Series Propulsion |
| Engine Type / Cylinder Block | Inline-6, 4-Stroke |
| Displacement | 12.90 Liters / 12,900 cc |
| Rated Horsepower | 850 HP to 1000 HP (625 kW to 735 kW) @ 2300 RPM (Depending on Rating Profile) |
| Maximum Torque | 3436 Nm @ 1700 RPM (At 1000 HP rating configuration) |
| Rated Engine Speed / Redline RPM | 2300 RPM |
| Aspiration & Induction | Supercharged (Compressor) and Turbocharged, Sea Water Aftercooled (SCAC) |
| Fuel System / Injection | High-Pressure Common Rail System (Direct Injection, Electronically Governed) |
| Bore x Stroke | 135 mm x 150 mm |
| Compression Ratio | 16.5:1 |
| Electrical System Voltage | 24V |
| Alternator Output | 120 Amps (Standard 24V marine layout) |
| Cooling System Type | Fresh Water Heat Exchanger (Closed-loop system with high-capacity expansion tank and sea water pump) |
| Coolant Capacity | 45.0 Liters |
| Exhaust System / Configuration | Wet Exhaust (Water-cooled turbocharger housing and manifold structure) |
| Emission Compliance | US EPA Marine Tier 3, IMO NOx Tier II, EU RCD Stage II compliant |
| Lubrication System Capacity | 32.0 Liters (Deep oil sump capability profile parameters) |
| Recommended Oil Grade | Cat DEO-ULS, SAE 15W-40 / 10W-30, API CK-4 / CJ-4 |
| Fuel Type / Requirement | Ultra-Low Sulfur Diesel (ULSD, EN 590 / ASTM D975 No. 2-D) |
| Fuel Consumption at Cruising Speed | 125.4 Liters/hour @ 1900 RPM (At mid-duty standard planing cruising load specifications) |
| Compatible Marine Gear / Transmission | ZF500A, ZF510A, Twin Disc MGX5135A, Twin Disc MGX5147A |
| Available Gear Ratios | 1.48:1, 1.75:1, 2.03:1, 2.47:1 (ZF500A) |
| Drive Type Compatibility | Shaft Drive / V-Drive configurations |
| Dry Weight - Engine Only | 1588 kg |
| Dry Weight - with Transmission | 1810 kg (Combined structural assembly setup with standard ZF transmission variants) |
| Dimensions - L x W x H | 1463 mm x 1113 mm x 1085 mm (Engine dimension layout matrixes) |
| Governor / Engine Control Unit | Electronic Control Unit (Caterpillar A4 ECU Module management systems) |
| Control System Interface | Cat gPME, NMEA 2000 via bridge conversion, J1939 CAN-bus telemetry arrays |
| Starting System | Electric starter motor 7.5 kW (24V architecture) |
| Flywheel & Housing Size | SAE No. 1 |
| Standard Warranty | 2 Years / Unlimited Hours (Recreational) or Caterpillar Platinum Plus extended coverage packages |
| Application | Luxury flybridge motor yachts (50–70 feet), high-performance luxury catamarans, deep-sea sportfishing cruisers, and fast commercial pilot interceptors. |
Caterpillar CAT C12.9 Marine Included:
- Caterpillar CAT C12.9 6-Cylinder Marine Propulsion Engine Core
- Supercharger and Turbocharger Sequential Twin-Forced Induction Assembly
- Common Rail Electronic Injection Fuel System with Solenoid Injectors
- Marine-Grade Corrosion-Resistant Closed Circuit Heat Exchanger System
- Gear-Driven Sea Water Pump and Closed Crankcase Ventilation Module
- Premium High-Capacity Oil Filter and Fuel Priming Assembly
- Official Caterpillar Global Marine Limited Warranty Card
- Technical Marine Propulsion Installation and Operation Guide Manual
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