| Manufacturer / Brand | Yanmar Marine |
| Model Designation | 4LV150 Compact Inboard |
| Engine Type | 4-Stroke Turbocharged Common-Rail Marine Diesel Inboard Engine |
| Cylinder Configuration | Vertical Inline-4, 16-Valve DOHC with Chain Drive Camshafts |
| Total Displacement | 2.755 Liters (168.1 cu in) |
| Bore x Stroke | 92.0 x 103.6 mm (3.62 x 4.08 in) |
| Aspiration & Charge Air | Turbocharged with Seawater-Cooled Charge Air Intercooler |
| Cooling System Architecture | Closed Freshwater Cooling Loop with Tubular Heat Exchanger and Raw Water Impeller Circuit |
| Continuous Power Rating (P1) | 120 BHP (88.3 kW) @ 3,356 RPM |
| Maximum / Intermittent Power (P3/P4) | 150 BHP (110 kW) @ 3,500 RPM (Rating 5 Pleasure / Rating 4 Light Commercial) |
| Fuel Injection Platform | Denso High-Pressure Common Rail (HPCR) Direct Injection (2,500 bar) with Thermo-Shield |
| Cylinder Head Metallurgy | Single-Piece Heavy-Duty Cast Iron Cylinder Head with Integrated Dual Overhead Cams |
| Cylinder Liners | Parent Bore High-Grade Cast Iron Engine Block |
| Flywheel Housing & Flywheel | SAE 4 Flywheel Housing with Dampened Torsional Drive Plate |
| Electrical System & Ground | 12V 2-Pole Isolated Earth Marine Electrical System with NMEA 2000 CAN-Bus Output |
| Starter & Alternator Output | 12V 2.5 kW Starter / 12V 130A High-Output Marine Alternator |
| Lube Oil Sump Capacity | 8.0 Liters (2.11 US gal) |
| Engine Coolant Capacity | 9.0 Liters (2.38 US gal) |
| Dry Weight (excl. gearbox) | 334 kg (736 lbs) [With KM4A1 Gearbox: 356 kg (785 lbs)] |
| Overall Dimensions (L x W x H) | 1,001 x 755 x 772 mm (39.4 x 29.7 x 30.4 in) |
| Emissions Certification | EPA Marine Tier 3, IMO Tier II, EU RCD Stage II |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Marine Gas Oil (MGO DMA/DMB), B20 Biodiesel |
| Transmission / Outdrive Compatibility | Bare Engine Bobtail Inboard - Compatible with Yanmar KM4A1, ZF 25A, ZF 45A, or Yanmar ZT370 Sterndrive |
| Factory Warranty Period | 2-Year Limited Factory Warranty with 3-Year Extended Major Components Coverage |
| Application Research | Compact motor yachts, semi-displacement cruisers, displacement fishing vessels, ski and wake boats, and commercial water taxis. |
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