Executive Summary

The Dongfeng Tianlong Kx 660HP 6x4 Tractor Truck represents a compelling solution for fleet operators and logistics enterprises seeking high-performance heavy-duty commercial vehicles at competitive price points. This certified pre-owned unit combines Dongfeng's renowned engineering excellence with the proven capabilities of the Tianlong Kx platform, delivering a tractor head that excels in demanding long-haul and regional distribution applications. As part of Dongfeng's premium commercial vehicle lineup, the Tianlong Kx series has established itself as a trusted workhorse across global logistics networks, offering operators the reliability and durability required for continuous commercial operation.

The significance of this 6x4 configuration tractor truck extends beyond mere transportation capability—it represents a strategic asset for companies looking to optimize their freight operations while maintaining operational flexibility. With a gross vehicle weight rating between 20,001-25,000 kg and a payload capacity spanning the 21-30 ton range, this unit strikes an effective balance between maximum legal load carrying efficiency and chassis durability. The integration of Euro 5 compliant engine technology ensures operators can deploy this vehicle across regions with stringent environmental regulations while benefiting from reduced emissions and improved fuel economy compared to older powertrain systems.

For B2B buyers in the commercial transportation sector, this used Dongfeng Tianlong Kx offers an attractive value proposition combining Chinese manufacturing quality with proven drivetrain components. The tractor truck's specification profile—featuring a 660+ horsepower engine, 12-speed manual transmission, and substantial 300-400L fuel tank capacity—positions it as a capable solution for intercity freight, heavy cargo transport, and specialized logistics applications requiring sustained highway operation.

Performance & Engineering

The heart of this Dongfeng Tianlong Kx tractor truck lies in its powerful inline-six diesel engine, delivering output exceeding 450 horsepower with peak torque ratings in the 1500-2000Nm range. This substantial powerplant enables the vehicle to maintain consistent performance across varied terrain and load conditions, from flat highway cruising to challenging gradients encountered in regional distribution routes. The engine's 6-8 liter displacement strikes an optimal balance between power density and fuel efficiency, allowing operators to achieve favorable cost-per-kilometer metrics over extended operating cycles. Dongfeng's engine development program has focused on delivering robust mechanical architecture designed for extended service intervals and reduced maintenance requirements, translating to improved vehicle uptime for commercial operations.

Power transmission is managed through a proven 12-speed manual transmission system developed and manufactured by Dongfeng, ensuring seamless gear transitions and optimal power delivery throughout the operational envelope. The synchronized transmission architecture allows drivers to exploit the engine's broad torque curve effectively, maintaining appropriate gear ratios for acceleration, cruising, and deceleration scenarios. Two reverse gear ratios provide adequate maneuvering capability for loading dock operations and confined space navigation. The integration between engine and transmission has been carefully calibrated to deliver smooth power delivery while protecting drivetrain components from excessive wear during high-load operation.

The chassis engineering of the Tianlong Kx reflects Dongfeng's commitment to structural integrity and load-bearing capability. The robust ladder-frame chassis provides the foundation for heavy-duty commercial operation, with strategically reinforced crossmembers and suspension attachment points designed to handle dynamic loads encountered during mixed-terrain transportation. The 6x4 drive configuration delivers excellent traction in challenging conditions while maintaining acceptable tire wear characteristics for highway operation. Twelve-tire configuration distributes vehicle weight effectively across the driving axles, reducing ground pressure and improving maneuverability compared to higher axle count configurations.

Key Advantages & Features

• High-Power Engine Performance: The 660+ horsepower diesel engine delivers exceptional output for demanding commercial applications, providing rapid acceleration capability and sustained high-speed operation on extended routes while maintaining fuel efficiency across diverse operating conditions.
• Euro 5 Emission Compliance: Advanced emission control technology meets stringent Euro 5 standards, enabling deployment in environmentally regulated markets while providing access to urban delivery zones that restrict higher-emission vehicles and supporting corporate sustainability initiatives.
• Substantial Payload Capacity: With a 21-30 ton load capacity and gross vehicle weight rating up to 25,000 kg, this tractor truck optimizes revenue per trip while remaining within legal highway limits, maximizing fleet efficiency and return on investment for logistics operations.
• Advanced Safety Systems: Integration of ABS (Anti-lock Braking System) and ESC (Electronic Stability Control) provides enhanced vehicle control during emergency maneuvers and adverse conditions, protecting cargo, driver, and other road users while reducing accident-related operational costs.
• Extended Range Operation: The 300-400 liter fuel tank capacity enables extended driving ranges between refueling stops, reducing downtime and improving route efficiency for long-haul operations while allowing flexible scheduling for fleet dispatch operations.
• Driver Comfort Features: Air suspension driver's seat, cruise control system, multimedia entertainment, and automatic windows create a productive cabin environment for extended driving shifts, reducing driver fatigue and improving safety outcomes for long-distance transportation.
• Heavy-Duty Drivetrain Integration: Dongfeng-manufactured engine, transmission, and drivetrain components are designed to work as an integrated system, ensuring optimal performance matching and simplifying maintenance procedures through unified service protocols.
• Comprehensive After-Sales Support: Video technical support and online assistance services provide operators with accessible maintenance guidance and troubleshooting resources, minimizing vehicle downtime and supporting efficient fleet management operations.

Specifications Table

Ideal Applications

• Long-Haul Freight Transportation: The combination of 660 horsepower output, extended fuel tank capacity, and comfortable driver amenities makes this tractor truck ideally suited for intercity and cross-regional freight operations spanning hundreds of kilometers, where sustained highway performance and driver comfort directly impact operational profitability.
• Heavy Cargo Logistics: With a 21-30 ton payload capacity and robust 6x4 drivetrain, this vehicle excels in transporting dense cargo commodities including construction materials, industrial equipment, and bulk goods that require maximum legal load efficiency within regional transportation networks.
• Container Haulage Operations: The tractor head configuration is optimized for coupling with various semi-trailer types commonly used in container transport, providing flexibility for intermodal logistics operations connecting ports, rail terminals, and distribution centers across regional supply chains.
• Cross-Border Trade Routes: Euro 5 emission compliance enables access to international trade corridors with stringent environmental requirements, making this unit suitable for logistics companies operating in regions with regulatory frameworks mandating low-emission commercial vehicles.
• Fleet Expansion and Replacement: B2B buyers seeking to expand existing transportation fleets or replace aging equipment will find this used Dongfeng Tianlong Kx offers an attractive balance of capability, reliability, and acquisition cost compared to new vehicle investments while maintaining competitive operational performance.
• Specialized Transport Services: The robust chassis and substantial power reserves provide a suitable foundation for specialized transport applications including heavy machinery relocation, oversized load convoy support, and industrial project logistics requiring reliable heavy-duty vehicles.

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