Yanmar 4JH4E: A Comprehensive Marine Engine Guide

Yanmar 4JH4E Specs: A Comprehensive Overview

Introduction

The Yanmar 4JH4E is a powerful and reliable marine diesel engine that is widely used in various boating applications. In this article, we will delve into the detailed specifications of this engine, covering different aspects such as performance, dimensions, and fuel consumption.

Engine Performance

The Yanmar 4JH4E boasts impressive performance capabilities, making it a popular choice among boat owners. Here are the key specifications related to its performance:

  • Maximum Output: 54 horsepower (40.3 kW)
  • Number of Cylinders: 4
  • Displacement: 2.19 liters (133.6 cubic inches)
  • Aspiration: Naturally aspirated
  • Combustion System: Direct injection
  • Cooling System: Freshwater cooling with heat exchanger

Dimensions and Weight

When considering an engine for your boat, it is essential to take into account its dimensions and weight to ensure proper installation and balance. Here are the specifications related to the Yanmar 4JH4E’s dimensions and weight:

Length 750 mm 29.5 inches
Width 560 mm 22 inches
Height 640 mm 25.2 inches
Weight (dry) 198 kg 436 lbs

Fuel Consumption

Efficiency is a crucial factor when it comes to marine engines. The Yanmar 4JH4E offers a good balance between performance and fuel consumption. Here are the fuel consumption specifications:

  • Fuel Type: Diesel
  • Fuel Consumption at Full Load: 8.4 liters/hour (2.2 gallons/hour)
  • Fuel Consumption at Cruising Speed: 6.5 liters/hour (1.7 gallons/hour)

Other Specifications

In addition to the performance, dimensions, and fuel consumption, here are some other noteworthy specifications of the Yanmar 4JH4E:

  • Starting System: Electric start
  • Alternator: 12V – 80A
  • Transmission: Kanzaki KM4A
  • Gear Ratio: 2.63:1
  • Oil Capacity: 6.1 liters (1.6 gallons)

Conclusion

The Yanmar 4JH4E is a reliable and efficient marine diesel engine that offers impressive performance and fuel economy. With its compact dimensions and moderate weight, it is suitable for various boating applications. Whether you are looking for a new engine or considering a repower, the Yanmar 4JH4E is certainly worth considering for its specifications and capabilities.

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Adam

An engineer with 20 years of experience. Passionate about construction, mechanisms and heavy construction machines

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