6BT5.9 Diesel Engine

6BT5.9 is a legendary 5.9L mechanically turbocharged on-highway engine, widely used in heavy trucks, dump trucks, buses, and special vehicles, famous for its rugged durability and low cost of ownership, making it a proven power solution for commercial vehicles.

Key Specifications

  • Configuration: 6-cylinder in-line, four-stroke
  • Displacement: 5.9 liters
  • Bore × Stroke: 102 mm × 120 mm
  • Aspiration: Turbocharged (water-cooled aftercooler optional)
  • Fuel System: Mechanical inline fuel injection pump
  • Rated Power: 130–180 hp (97–134 kW)
  • Rated Speed: 2500–2800 rpm
  • Max Torque: 550–700 N·m (at 1400–1600 rpm)
  • Cooling System: Liquid-cooled
  • Lubrication System: Pressure lubrication
  • Applications: Heavy trucks, dump trucks, buses, special vehicles

Key Technologies & Advantages

  1. Reliability & Economy
    • Mechanical inline pump design tolerates a wide range of fuel qualities, ideal for remote operations.
    • High parts commonality and affordable spares ensure low total lifecycle costs.
  2. Structural Durability
    • Proven reliability with millions of kilometers of trouble-free operation, perfect for long-haul transport.
    • High-strength cast iron block resists impact and wear, adapting to complex road conditions.
  3. Maintenance & Service Support
    • Simple structure enables easy maintenance and low repair costs.
  4. Multi-scenario Adaptability
    • Customizable power and speed configurations are available to meet the transport needs of different commercial vehicles.

 

OEM configurations, different power ratings, and complete power solutions are available.
Contact us now for price, lead time, and technical support.

Quality Assurance & Compliance

Warehouse Storage

FAQ

Q1. What is your main products and business?

A: Our core business covers diesel engine development, production, customized modification, maintenance and testing; explosion-proof engine R&D and manufacturing; Cummins spare parts supply, as well as engine overhaul and testing services.

Q2. What is your packing terms ?

A: Export-standard wooden box packaging

Q3. How about your delivery lead time?

A:The specific delivery time depends on the items and the quantity of your order. We will confirm it with your detailed order.

Q4. How to buy an engine?

A. Please provide us with your engine model, required rated power and speed, and application scenario. We will then recommend the most suitable model based on those information.

Q5. Do you provide engine customization? What's the MOQ?

A: We offer professional engine customization services and can fully tailor the products to your specific requirements, with a variety of options available for pricing, specifications and configurations. The minimum order quantity (MOQ) for customized engines is 1 unit.

Q6. Will the engines be tested before leaving the factory?

A:Yes, every engine is subjected to rigorous and comprehensive performance tests prior to shipment. We also provide clients with detailed test videos and electronic data.

Q7. What are your delivery terms ?

A: EXW, FOB, CFR, CIF,DDU,DDP.

Q8. What are your payment terms?

A: T/T, X Transfer, L/C, MoneyGram, PayPal, Cash etc

Q9.Do engines come with a warranty? What is the warranty period? What does the warranty cover?

A:Yes, the warranty period is 6 months, covering main engine components. Consumable parts and failures caused by improper operation are excluded.