The Yanmar D1703BM-DI-EF04 is a reliable three-cylinder diesel engine suitable for generator sets, construction machinery, agricultural machinery, and industrial equipment. Utilizing advanced design and direct injection technology, it ensures efficient performance, low fuel consumption, smooth operation, and long-lasting durability.
Typical Applications
- Generator Sets: Small backup or primary power sources
- Construction Machinery: Mini excavators, small rollers, and other construction equipment
- Agricultural Machinery: Tractors, harvesters, seed drills
- Industrial Equipment: Air compressors, water pumps, welders, and other power units
Features & Benefits
- Compact and efficient, easy to install on industrial and construction equipment
- Powerful power and high fuel efficiency
- Smooth operation with low noise and vibration
- Durable and reliable, suitable for long-term continuous operation
- Professional application, covering a wide range of generator sets, construction machinery, and industrial power equipment

Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: If I only know the excavator model, but can not offer parts No., what should I do?
A2: If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
A3: Yes sure. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I do if there is something wrong with the items?
A5: Our products have been professionally tested and the quality is very stable. If you really found something wrong, please contacts. We have a professional after-sales team to help you solve the problem.