Selection Guide: How to Choose the Right Diesel Engine for Marine, Construction and Agricultural Equipment

2025-04-23 16:09 hdpower

1. Key Selection Factors

1. Power and Load Requirements
Estimate the required continuous and peak power based on the equipment’s ratedload and working conditions. It is recommended to leave a 20% power margin.

2. Operating Environment and Space Constraints
Confirm the engine size and weight to ensure proper fit in the available space.Marine engines should focus on corrosion resistance, construction machineryneeds efficient filtration, and agricultural machines should have good heatdissipation pathways.

3. Maintenance and Reliability
Choose engines with long overhaul cycles and easy maintenance. Convenient dailymaintenance helps reduce operational costs.

4. Fuel Economy and Emissions Standards
Select engines based on local emission regulations (e.g., Euro IV, EPA, StageIII), utilizing technologies like high-pressure common rail to reduce fuelconsumption and emissions.

2. Recommended Selection Based on Application Scenarios

Marine Power
Characteristics: Continuous operation, heavy load, limited space
Recommended Models: 4BT, 4D, 6A, 6B, 6BT, 6MK, K19, K38

Construction Machinery
Characteristics: Dusty, frequent start-stop, high-impact loads
Recommended Models: 4D, 6BT, 6CT, 6A, 6W, P12

Agricultural Machinery
Characteristics: Intermittent operation, dusty, crop residues
Recommended Models: 4BT, 4D, 6CT, 6A, 6W

3. Hengda Power Product Overview

Power Range (hp) /   Recommended Models /   Applications

30–100
4BT, 4D
Small boats, tractors

100–300
6A, 6B, 6BT, 6CT, 6W
Medium vessels, excavators, agricultural machines

300–500
6W, P12, P13
Large construction machinery, passenger ships

500–1000+
P13, K19, K38
Mining trucks, patrol boats, large cargo ships

4. Tips for Selection

It is recommended to leave a 120% power margin whenselecting the engine to avoid running the engine at full load for extendedperiods.

For marine and construction machinery, it is recommended to choose engines withan overhaul cycle ≥ 8,000 hours.

If you are unsure about the power requirements or operating conditions, pleaseconsult Hengda Power’s technical team for a custom solution.

Contact Us

Website: www.symplexcourier.com
Email: lzhdpower@gmail.com


Liuzhou Hengda Power Machinery Manufacturing Co., Ltd
Tel:谭总 13517721860 E-mail:service@lzhd.com.cn Add:No. 18, Leye Road, Xinxing Industrial Park, Liuzhou, Guangxi

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