6BTA5.9 Diesel Engine

The 6BTA5.9 and 6BTAA5.9 are legendary 6-cylinder diesel engines known for exceptional durability, fuel efficiency, and wide application coverage.
Widely used in trucks, construction machinery, generator sets, marine, and heavy-duty industrial equipment.

Technical Specifications

6BTA5.9 / 6BTAA5.9 Engine Models

Model Rated Power (kW@rpm) Max Torque (N·m@rpm)
6BTA5.9-C150-II 112 @ 2200 655 @ 1500
6BTA5.9-C155-II 114 @ 2000 625 @ 1400
6BTA5.9-C170-II 127 @ 2000 710 @ 1300
6BTA5.9-C180-II 132 @ 2200 750 @ 1300
6BTAA5.9-C125-II 92 @ 2000 580 @ 1400
6BTAA5.9-C160-II 118 @ 2000 690 @ 1300
6BTAA5.9-C180 132 @ 2500 640 @ 1400
6BTAA5.9-C205 153 @ 2200 870 @ 1400

The 6BTA5.9 diesel engine is one of the most widely used and trusted power solutions in the global heavy-duty market.

Featuring an inline 6-cylinder direct injection design, the engine offers a compact structure with extremely high rigidity, ensuring excellent combustion efficiency and long-term operational stability.

With power output ranging from approximately 140 HP to 285 HP, the 6BTA/6BTAA5.9 series delivers strong low-speed torque, fast response, and outstanding fuel economy across a wide range of applications.

Technology & Fuel System Options

  • Classic Mechanical Version
    Equipped with the PT fuel system, known for its simple structure, excellent reliability, and ease of maintenance.

  • Electronic Control Version
    Upgraded to electronic fuel systems (such as CELECT or ISB-series electronic injection / common rail) to meet higher emission requirements.

Key Advantages

  • Exceptional Reliability & Durability
    Many units achieve over 1 million kilometers of operation without major overhaul.

  • Wide Power Coverage
    Suitable for medium to heavy-duty applications across multiple industries.

  • Strong Torque Reserve
    Excellent low-speed torque performance for demanding load conditions.

  • Excellent Fuel Economy
    Optimized combustion system reduces operating costs.

  • Global Service & Parts Availability
    Easy access to spare parts worldwide.

Applications

  • Trucks
    8×4 dump trucks, mixer trucks, tractor trucks
    (Dongfeng, FAW J5/J6, Foton Auman, etc.)

  • Buses & Coaches
    City buses, long-distance coaches, luxury touring buses

  • Construction Machinery
    Loaders (e.g. 5-ton class), excavators, cranes, rollers

  • Power Generation
    Diesel generator sets
    Power range: 150 kWe – 250 kWe

  • Special Vehicles
    Fire trucks, oilfield service units, communication vehicles

  • Marine Applications
    Small vessels (main engines) or large vessels (auxiliary engines)

  • Agriculture & Mining
    Large tractors, mining equipment

Technical Specifications

6BTA5.9 / 6BTAA5.9 Engine Models

Model Rated Power (kW@rpm) Max Torque (N·m@rpm)
6BTA5.9-C150-II 112 @ 2200 655 @ 1500
6BTA5.9-C155-II 114 @ 2000 625 @ 1400
6BTA5.9-C170-II 127 @ 2000 710 @ 1300
6BTA5.9-C180-II 132 @ 2200 750 @ 1300
6BTAA5.9-C125-II 92 @ 2000 580 @ 1400
6BTAA5.9-C160-II 118 @ 2000 690 @ 1300
6BTAA5.9-C180 132 @ 2500 640 @ 1400
6BTAA5.9-C205 153 @ 2200 870 @ 1400

General Specifications

  • Engine Type: Inline 6-cylinder, 4-stroke

  • Fuel Injection: Direct Injection

  • Aspiration: Turbocharged / Turbocharged & Aftercooled

  • Cooling System: Water-cooled

  • Fuel System: PT Fuel System / Electronic Control

  • Displacement: 5.9 L

  • Power Range: Approx. 152-180HP

  • Application: Truck, Construction, Generator, Marine, Agriculture

 

Multiple configurations, emission options, and OEM solutions are available.
Contact us today for pricing, lead time, and technical support.

Model

6BTA5.9-C150-II

,

6BTA5.9-C155-II

,

6BTA5.9-C170-II

,

6BTA5.9-C180-II

,

6BTAA5.9-C125-II

,

6BTAA5.9-C160-II

,

6BTAA5.9-C180

,

6BTAA5.9-C205

Rated Power (kW@rpm)

112@2200

,

114@2000

,

118@2000

,

127@2000

,

132@2200

,

132@2500

,

153@2200

,

92@2000

Max Torque (N·m@rpm)

580@1400

,

625@1400

,

640@1400

,

655@1500

,

690@1300

,

710@1300

,

750@1300

,

870@1400

Series

B Series

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.