Details
Genuine Dongfeng Cummins EQB170-20 Diesel Engine (5.9L, 170HP)
Finding a reliable heavy-duty engine that balances raw power with operational efficiency is critical for fleet managers and vehicle manufacturers. As a dedicated engine supplier, HekoPower provides the genuine Dongfeng Cummins EQB170-20 engine, engineered specifically for rigorous commercial vehicle applications.
This specific model is a cornerstone of the renowned Cummins B series engine family. Built by the DCEC (Dongfeng Cummins Engine Company) joint venture, the EQB170-20 delivers a robust 170HP (125kW) at 2500 RPM. We understand that purchasing a complete commercial vehicle engine is a significant investment. That is why we ship these units fully assembled, rigorously tested, and backed by a comprehensive 12-month warranty.
Tech Specs of Cummins EQB170-20
General Engine Data
Engine Model: Cummins EQB170-20
Type: 6 Cylinders in Line
Displacement: 5.9 L
Bore * Stroke: 102 * 120
Net Weight (with flywheel & alternator): 407 Kg
Overall Dimension: 1026mm*699mm*912mm
Key Performance Data
Rated Power: 125 kW/170HP
Rated Speed: 2500 rpm
Max Torque/Speed: 560 N.m @ 1500 rpm
Fuel Consumption @ Rated Power: 238 g/Kw.h
Max. No-load Governed Speed: 2750 rpm
Idle-Speed: 750 rpm
Max Continuous Running Altitude: 3000 m
More Technical Data
Certification: Euro II
Aspiration: Turbocharged & Intercooled
Fuel System: Wuxi Weifu Pump
Compression Radio: 17.3:1
Electrical System (Starter Motor/Alternator): 12V (500A)/24V (250A)
Lowest Starting Temp Without auxiliary system: -10℃/-25℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 9.0 L
Real-World Application Scenarios for the EQB170-20
Unlike generic engines, the Cummins EQB170-20 is highly specialised. Competitor websites often fail to mention exactly where this engine excels. Through our experience supplying global markets, we see this engine perform best in two primary sectors.
Medium to Heavy Duty Trucks
The Cummins EQB170-20 truck engine is the power plant of choice for medium-tonnage cargo vehicles and regional haulers. Because it delivers high torque at lower RPMs, truck drivers experience less gear shifting on steep inclines. If you are operating a fleet of logistics vehicles in regions with demanding terrain, this Euro II Cummins 5.9L truck engine provides the necessary mechanical reliability without the fragility of overly complex modern systems.
Commercial Passenger Buses
Public transit and inter-city coach operators frequently request the Cummins EQB170-20 bus diesel engine. Stop-and-go city traffic puts immense strain on a vehicle's cooling and fuel systems. The 6BT 5.9L block design is famous for its thermal stability. This ensures passenger buses do not overheat during peak summer transit schedules, making it an ideal Cummins automotive diesel engine for public transport upgrades.
Technical Specifications and Engineering Edge
Most suppliers simply copy and paste the same basic specification sheets. At HekoPower, we want you to understand the engineering behind the numbers.
The Legendary 6BT 5.9L Foundation
The EQB170-20 is built on the architecture of the legendary Cummins 6BT 5.9L engine. This means it is an inline 6-cylinder, turbocharged diesel engine. It utilizes a 102mm bore and a 120mm stroke, displacing exactly 5.9 liters. This specific geometry is what allows the engine to balance fuel economy with heavy load-hauling capabilities.
Power and Torque Dynamics
With a rated output of 125KW (170HP) at 2500 RPM, the Cummins EQB170-20 power and torque curve is heavily optimised for commercial use. The turbocharger ensures that maximum torque is available early in the rev range. This low-end grunt is essential for getting heavy trucks moving from a standstill without excessive clutch slip.
Fuel Consumption and Performance
When discussing Cummins EQB170-20 fuel consumption and performance, the mechanical fuel injection pump is the star of the show. While electronic systems are common today, this engine utilizes a proven mechanical direct injection system. This results in highly predictable fuel consumption rates. Fleet operators appreciate this because it makes fuel budgeting for long-haul routes incredibly accurate, while remaining compliant with Euro II emission standards.
Technical Comparisons: How the EQB170-20 Stands Out
Buyers often ask us to compare the DCEC EQB170-20 engine against older 4BT engines or non-turbocharged variants.
The primary difference lies in the aspiration and block integrity. A naturally aspirated engine will lose significant power at higher altitudes due to thinner air. Because the EQB170-20 is a turbocharged diesel engine, the forced induction compensates for altitude changes. If your trucks operate in mountainous regions, the EQB170-20 will vastly outperform a similarly sized naturally aspirated engine.
Furthermore, compared to older generations of the Cummins B5.9 engine, the EQB series features reinforced piston rings and a higher-capacity oil cooler. This specifically addresses the thermal stress caused by extended highway driving under heavy loads.
Maintenance and Replacement Tips
Downtime costs money. Proper upkeep of your Dongfeng Cummins B series engine ensures it outlasts the chassis it powers.
Servicing Your Engine
We always recommend adhering strictly to the Cummins EQB170-20 engine maintenance manual. Because this is a turbocharged engine, oil quality is non-negotiable. The turbo bearings spin at incredibly high speeds and rely entirely on the engine oil for cooling and lubrication. Allowing the engine to idle for three minutes before shutting it down will prevent oil coking inside the turbocharger—a simple tip that saves thousands in repair costs.
Sourcing Replacement Parts
As a heavy-duty unit, eventually, components like water pumps, alternators, or fuel injectors will wear out. HekoPower is not just an engine supplier; we provide genuine replacement parts for Cummins EQB170-20 engines. Always avoid aftermarket, unbranded filters. Using genuine fleetguard filters ensures the mechanical fuel pump remains free of microscopic debris, extending the life of your entire Cummins EQB170-20 engine assembly.
Common Misconceptions About the EQB170-20
A frequent misconception in the industry is regarding the Cummins EQB170-20 electronic control system. Many buyers mistakenly believe that all modern truck engines require complex computer diagnostics.
This is not the case here. The EQB170-20 (Euro II) relies on a fully mechanical fuel delivery system. It does not have a fragile, sensor-heavy electronic control unit (ECU) governing the injection timing. This makes it incredibly easy to repair in remote locations. A skilled mechanic can diagnose and fix this engine with standard hand tools, making it the perfect Cummins EQB170-20 replacement engine for trucks operating in developing infrastructure areas.
Why Choose HekoPower as Your Engine Supplier
Navigating the international market for a replacement engine for trucks can be difficult due to varying quality standards. As a premier China Cummins EQB170-20 engine exporter, HekoPower eliminates the guesswork.
When you buy a Cummins EQB170-20 diesel engine from us, you receive a factory-fresh unit. We pride ourselves on transparent communication. The Cummins EQB170-20 engine price we quote includes secure export crating. We accept flexible payment terms, including T/T, L/C, and Western Union. Most importantly, we maintain a rapid supply chain, offering a lead time of around just 10 business days for standard orders.
DCEC WQB Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes EQB125-20, EQB140-20, EQB160-20, EQB170-20, EQB180-20, EQB190-20, EQB210-20, EQB235-20.
Frequently Asked Questions (FAQ)
What vehicles can use the Cummins EQB170-20 as a replacement engine?
This 5.9L diesel engine for heavy duty vehicles is highly versatile. It is a direct drop-in replacement for many Dongfeng commercial trucks, 8-to-10-meter passenger buses, and custom industrial vehicles designed for a Euro II mechanical engine footprint.
Where can I find the official Cummins EQB170-20 5.9L engine specification sheet?
Our sales engineering team provides the complete, official technical data sheet and installation drawings upon request. Contact us via sales@hekopower.com to ensure you get the exact dimensional data for your vehicle chassis.
How do I get a quote for a DCEC Cummins EQB170-20 supplier/price?
You can reach out directly via our contact channels. Because shipping costs fluctuate globally, we provide tailored quotes that include both the engine price and the exact freight costs to your nearest port.
Does this engine come with a warranty?
Yes, every genuine Cummins EQB170-20 purchased through HekoPower includes a standard 12-month manufacturer warranty, protecting your investment against any factory defects.
