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YANMAR 4JH4AE 53.1HP

Model: 4JH4AE

Brand: Yanmar

Product Specification Listing: YANMAR 4JH4AE Marine Engine

General Information

Model: YANMAR 4JH4AE
Type: Marine Diesel Engine
Application: Sailboats, yachts, and other small marine vessels

Technical Specifications

Engine Power Output: 53.1 HP (39.2 kW)
Number of Cylinders: 4
Engine Configuration: In-line
Displacement: 1.995 liters (1995 cc)
Bore x Stroke: 84 mm x 90 mm
Compression Ratio: 19.0:1

Performance

Maximum RPM: 3000 RPM
Continuous Rating Output: 47.0 HP (34.3 kW) at 3000 RPM
Fuel Consumption (approx.):
- At Maximum Output: 9.3 liters per hour
- Cruising Speed: 5.0 liters per hour

Physical Specifications

Dimensions (L x W x H): 749 mm x 577 mm x 685.5 mm
Dry Weight: 227 kg
Cooling System: Freshwater cooling with heat exchanger

Fuel System

Fuel Type: Diesel
Fuel Injection System: Direct injection
Fuel Tank Capacity: Depends on the vessel's fuel tank

Lubrication System

Type: Forced lubrication with trochoid pump
Oil Capacity: 4.3 liters
Oil Filter: Spin-on type

Electrical System

Alternator: 12V, 80A
Starter Motor: 12V, 2.5kW
Battery Recommendation: 12V, 120AH (minimum)

Emissions and Environmental

Compliance: EPA Tier 2, IMO Tier 2
Exhaust System: Water-cooled, loop charged
Air Cleaner: Dry type

Additional Features

Engine Mounts: Flexible mounts included for vibration reduction
Instrument Panel: Optional analog or digital panels
Throttle and Shift Control: Available for remote operation

Warranty

Standard Warranty: 2 years or 2000 hours (whichever comes first)
Extended Warranty: Optional with registration and additional cost

Recommended Accessories

Propeller: Matched to vessel size and type
Transmission: YANMAR KM35A or KM4A2 recommended
Cooling System Components: Additional heat exchanger and seawater pump

Maintenance Requirements

Regular Service Intervals: 250 hours or annually
Common Maintenance Tasks:
- Oil filter change
- Fuel filter replacement
- Impeller inspection
- Belt tension checks
- Coolant level and condition checks

Contact Information

Manufacturer: YANMAR Co., Ltd.
Website: www.yanmar.com
Customer Service: 1-800-YANMAR-1 (1-800-926-6271)
Dealer Locator: Available on the official website

Note: Specifications are subject to change without notice. Always refer to the manufacturer’s documentation for the most accurate and specific information.

[Product Type: Engine]