Excavator Refurbished Yanmar 4TNV88-PBVB 4-Cylinder Diesel Engine for Construction Machinery
The Yanmar 4TNV88-PBVB diesel engine is a compact power unit for small construction machinery, designed with a focus on structural reliability and sustained output capability. This engine features an in-line four-cylinder cast iron block structure, combined with a water-cooling system and mechanical direct fuel injection, ensuring stable operation even under prolonged use and demanding conditions. Its compact and balanced structure makes it suitable for installation in construction equipment and industrial power systems where space and reliability are critical.
Features and Advantages
• Stable Structure: Cast iron monoblock cylinder block, strong load-bearing capacity, suitable for long-term continuous operation.
• Smooth Operation: In-line four-cylinder layout, low vibration, stable power output.
• Easy Maintenance: Mechanical direct injection system, simple structure, adaptable to complex operating environments.
• Reliable Cooling: Water-cooling system ensures stable engine operation under high load.
Yanmar 4TNV88-PBVB Diesel Engine Overall Structure Diagram

Yanmar 4TNV88-PBVB 4-Cylinder Engine for Construction Machinery

4TNV88-PBVB Diesel Engine Fuel Injection System Structure

4TNV88 Engine Cylinder Block High-Rigidity Structure, suitable for continuous load operation
Excavator 4TNV88-PBVB 4-Cylinder Diesel Engine Flywheel View



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.