Yanmar 4JH80 Inboard Diesel Engine
Used Yanmar 4JH80 Inboard Diesel Engine Specs
| Brand / Manufacturer | Yanmar Marine International |
| Full Model Code | 4JH80 (Common Rail JH Series) |
| Engine Type | 4-Stroke, Vertical, Water-Cooled In-line 4 Diesel Propulsion Engine |
| Rated Output (Crankshaft) | 58.8 kW (80 mhp) @ 3200 RPM (ISO 8665) |
| Number of Cylinders | 4 Cylinders In-line (16-Valve Configuration) |
| Displacement Size | 2.000 Liters (122.0 cubic inches) |
| Bore x Stroke | 84 mm x 90 mm (3.31" x 3.54") |
| Combustion System | Direct Injection with Bosch High-Pressure Common Rail Infrastructure |
| Aspiration Type | Turbocharged with Liquid-Cooled Turbine Housing & Air Intercooler Matrix |
| Electrical System Voltage | 12V DC Standard Double-Pole System (1.4 kW Starter Motor) |
| Charging Alternator Spec | Standard Factory High-Output 12V - 125A Alternator Component |
| Cooling System Layout | Closed Fresh Water Loop via Centrifugal Pump with Seawater Heat Exchanger Circuit |
| Engine Management | Full Digital Electronic Controls supporting Yanmar VC20 Vessel Control System |
| Crankshaft Rotation | Counterclockwise (CCW) viewed from stern looking forward onto the flywheel |
| Dry Weight (Without Gear) | 229.0 kg (504.8 lbs) Baseline Dry Bobtail Weight |
| Dimensions L x W x H | 909 mm x 613 mm x 671 mm (35.8" x 24.1" x 26.4") Structural Footprint |
| Emission Certifications | EPA Tier 3, IMO Tier 2, EU RCD 2, BSO II, and EMC Compliant Status |
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