Lombardini KDI1903TCR-MP Turbo Common-Rail Marine Diesel Package
Description
Cast iron monobloc structures ensure thermal stability in the Lombardini KDI1903TCR-MP Turbo Common-Rail Package, producing 56BHP from a 1.9L Inline-3 architecture. Peak output arrives at 2,600 RPM under boost. High-pressure 2,000 bar direct injection requires strict 2-micron fuel filtration to prevent valve seat contamination. Heavy parent-bore walls resist mechanical fatigue during continuous passenger ferry service.
High-grade cast iron forms the parent-bore cylinder block and single-piece cylinder head to maintain structural alignment. Dual intake and exhaust pathways run through 4-Valve per cylinder architecture driven by a rugged overhead camshaft. The 12V negative ground system includes a 2.0 kW electric starter and 100A marine alternator. Dry engine mass measures 507 lbs within a base envelope measuring 28.0in long, 22.2in wide, and 25.8in high holding 2.25 gal of oil.
Key Features of Lombardini KDI1903TCR-MP
Commercial charter operators buy Lombardini KDI1903TCR-MP inboard turbo packages to power high-capacity harbor tenders and tourist launches. The engine platform simplifies commercial workboat diesel engine repower jobs where existing motor boxes require low physical profile machinery.
- Common rail electronic injection maintains 2,000 bar pressure for smokeless low-speed maneuvering.
- Wastegate turbocharging supplies rapid intake boost without thermal exhaust manifold choke.
- Water-cooled charge air intercoolers drop intake charge temps to maximize cylinder density.
- Monobloc 4-Valve cylinder head design optimizes air flow across all three combustion chambers.
- ZF 15M mechanical marine gearbox provides durable forward and reverse shaft direction.
- Continuous P1 rating supplies 50BHP at 2,400 RPM for prolonged commercial transits.
- Intermittent P3 rating yields 56BHP at 2,600 RPM for fast bar crossings.
Dynamometer Test Bench Load Ratings
Dynamometer cell load tests establish continuous output of 50BHP at 2,400 RPM with peak intermittent output at 56BHP at 2,600 RPM. Common rail delivery pressure maintains 2,000 bar under 1.60 bar absolute manifold pressure. Pyrometer sensors measure exhaust gas temperatures at 1,240°F before entering raw water injected exhaust risers. Fresh water coolant holds steady at 185°F inside closed tubular circuits. Lubrication pressure shows 55 PSI at full rated throttle. Crankshaft journal runout remains below 0.0004in TIR through installation angles up to 15°.
Field Operation Common Rail Protocols
Digital helm controls actuate with smooth precision requiring under 2 lbs of throttle force. Do not specify this sophisticated common rail turbo package for remote wilderness vessels lacking access to ultra-low sulfur diesel fuel or clean tank filtration systems.
- Drain engine lube oil and replace lube filter cartridges every 250 operating hours.
- Inspect heat exchanger sacrificial anodes and raw water impellers every 150 operating hours.
- Replace primary 2-micron fuel water separator elements every 500 operating hours to protect injectors.
Factory Warranty Equipment Shipment Manifest
Lombardini Kohler protects this turbo package with a 2-Year or 2,000-Hour commercial marine warranty. Factory wooden crates contain the fully dressed 1.9L engine, ZF 15M transmission, vibration damping mounts, 12V 100A alternator, digital helm display panel, wiring harness, fluid senders, and comprehensive service manuals.
Lombardini KDI1903TCR-MP Specs
| Manufacturer / Brand | Lombardini Marine (Kohler Engines) |
| Model Designation | KDI1903TCR-MP Turbo Package |
| Engine Type | 4-Stroke High-Speed Commercial Marine Diesel |
| Cylinder Configuration | Inline-3 |
| Total Displacement | 1.9 Liters (114 cu in) |
| Bore x Stroke | 88.0 x 102.0 mm (3.46 x 4.02 in) |
| Aspiration & Charge Air | Turbocharged with Wastegate and Water-Cooled Charge Air Intercooler |
| Cooling System Architecture | Tubular Heat Exchanger Closed Circuit with Raw Water Impeller Pump |
| Continuous Power Rating (P1) | 50 BHP (37 kW) @ 2,400 RPM |
| Maximum / Intermittent Power (P3/P4) | 56 BHP (42 kW) @ 2,600 RPM |
| Fuel Injection Platform | High-Pressure Common Rail (HPCR) Electronic Direct Injection (2,000 bar) |
| Cylinder Head Metallurgy | Monobloc Cast Iron 4-Valves Per Cylinder Head with Overhead Camshaft |
| Cylinder Liners | Cast Iron Engine Block with Integrated Parent Bores |
| Flywheel Housing & Flywheel | SAE 4 Housing with SAE 7.5 Flywheel |
| Electrical System & Ground | 12V Negative Ground Marine Electrical System |
| Starter & Alternator Output | 12V 2.0 kW Electric Starter / 12V 100A Marine Alternator |
| Lube Oil Sump Capacity | 8.5 Liters (2.25 US gal) |
| Engine Coolant Capacity | 7.5 Liters (1.98 US gal) |
| Dry Weight (excl. gearbox) | 230 kg (507 lbs) |
| Overall Dimensions (L x W x H) | 710 x 565 x 655 mm (28.0 x 22.2 x 25.8 in) |
| Emissions Certification | RCD 2 (Directive 2013/53/EU) / EPA Tier 3 Marine / EU Stage V |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Automotive Diesel (EN 590), B7 Biodiesel |
| Transmission / Outdrive Compatibility | Packaged with Technodrive Twin Disc TMC 60A / TMC 60P or ZF 15M Inboard Marine Transmission |
| Factory Warranty Period | Lombardini Kohler 2-Year or 2,000-Hour Limited Commercial Marine Warranty |
| Application Research | Inshore commercial fishing vessels, passenger tourist launches, fast response support tenders, and commercial charter catamarans requiring high-torque low-emission diesel power. |












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