DuraMac EQ6680ZT6D Four Wheel Drive Bus
The Dongfeng EQ6680ZT6D is a National VI emission-compliant passenger bus, powered by the Dongfeng Cummins D4.0NS6B170 engine. It is engineered to deliver reliable performance while meeting strict environmental standards, making it a sustainable choice for public transit operations.
With an overall length of 6800 mm and a wheelbase of 3800 mm, this model offers a flexible passenger capacity of 10–23 seats. The 1730 mm interior height ensures comfortable travel, and a maximum speed of 100 km/h supports efficient urban and short-distance intercity transportation.
Boasting a maximum total mass of 8150 kg and a minimum ground clearance of 245 mm, the EQ6680ZT6D balances stability and adaptability. Its 4.0L displacement engine delivers 125 kW of power, providing steady performance for diverse operational scenarios.
Advantages of EQ6680ZT6D Four-wheel Drive Bus
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Robust and Reliable Powertrain Output:The engine delivers a maximum power of 125 kW at 2400 rpm and a peak torque of 600 N·m at 1300 rpm, ensuring strong low-speed torque and smooth power delivery for stable performance under various load conditions.
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Optimized Passenger Capacity and Space Utilization:With a passenger capacity of 10–23 seats and a wheelbase of 3800 mm, the vehicle balances extended length (6800 mm) with a spacious 1730 mm interior layout, making it ideal for high-capacity urban transit.
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Enhanced Stability and Adaptability:Featuring a maximum total mass of 8150 kg, a minimum ground clearance of 245 mm, and a track width of 1810/1700 mm, the model provides reliable stability and terrain adaptability for consistent operation across different road conditions.
Technical Specifications
| Total Length (mm): | 6800 |
| Total Width (mm): | 2280 |
| Total Height (mm): | 3020(flat top)/3155(Full roof air conditioning) |
| Interior Height (mm) | 1730 |
| Wheelbase front/back(mm): | 1810/1700 |
| Front Suspension / Rear Suspension (mm): | 1340/1660 |
| Approach/Departure Angle (°): | 27/20 |
| Step Height (mm): | 245 |
| Rated Maximum Gross Vehicle Weight (kg) | 8150 |
| Rated Number of Passengers (Persons) | 10-23 |
| Top Speed (km/h) | 100 |
| Emission Standard | National VI |
Model |
Total Length(mm) |
Overall Width(mm) |
Total Height(mm) |
Maximum Speed (km/h) |
Maximum Total Mass(kg) |
| EQ6680ZT6D | 6800 | 2280 | 3020 (ordinary car)/ 3155 (Full roof air conditioning) |
100 | 8150 |
| EQ6602ZT6D | 5990 | 2530 | 3225(flat top)/3290(ordinary car)/3465(air conditioner) | 100 | 11950 |
| EQ6600ZT6D | 5990 | 2280 |
2810(ordinary car)/3030(Full roof air conditioning) |
100 | 7300 |
| EQ5070XYBT6D | 5990 | 2280 | 2810(ordinary car)/3030(Full roof air conditioning) | 100 | 7300 |
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Basic information of Dongfeng EQ6680ZT6D motor |
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| Engine Model | D4.0NS6B170 | Engine Manufacturer | Dongfeng Cummins Engine Co., Ltd |
| Location/Fuel Type | Front-mounted/Diesel | Enginetype | Inline four-cylinder, four-stroke, water-cooled, turbocharged, intercooled, electronically controlled single-point injection |
| Maximum power (kw) | 125/2400 | Maximum Torque (Nm/rpm) | 600/1300 |
| Displacement (L): | 4.0L | Emission Standard: | China VI |
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Chassis Parameters And Configuration |
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| Item | Standard Configuration | Optional configuration |
| Chassis Model | EQ6640KZ6T, Dongfeng Special Vehicle Co., Ltd | — — |
| Transmission | 6DS60T Fast 6-speed | — — |
| Clutch | 395mm diaphragm spring clutch | — — |
| Front Axle | 2.7T | — — |
| Rear Axle | 5.5T | — — |
| Suspension | Leaf springs: 10 front/10 rear + 8-plate | — — |
| Steering | Power steering | — — |
| Braking | Air brake, dryer, ABS, self-leveling arm, exhaust brake, wear alarm | — — |
| Fuel Tank | 135L | — — |
| Tires | 7.50R20 | — — |
| Battery/Generator | 6-QW-120MF x 2 / 28V 150A | — — |
| others | Copper water tank, urea pipe electric heating, engine preheating, steering damper | Oil circuit heating; Meizhong Runwan; Power take-off; Electric winch |
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Main body Assembly |
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| Item | Standard Configuration | Optional configuration |
| Body structure | Body-on-frame | — — |
| Interior | Molded soft interior | — — |
| Doors and Door Pumps | Driver & co-driver doors (electric window lift), manually rotating passenger door | Rear container-style double doors, inward & outward opening double doors |
| Side Windows | Fully bonded window-in-window (F green) | Fully bonded sealed windows, partial window-in-window + partial fully bonded sealed windows |
| Windshield | Laminated front windshield, tempered rear windshield | — — |
| Rearview System | Steel-frame asymmetric manual lever-type rearview mirror | — — |
| Air - conditioning System | Full roof-mounted air conditioning/Driver’s compartment air conditioning | |
| Heating System | — — |
Standard Independent Water Heating-Heating capacity: 15kW Heating system with independent heater, 3 radiators inside vehicle (3×170W square-box radiators, or 2×170W square-box radiators + 1 wall-mounted radiator)
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| — — | Alpine Independent Water Heating-Heating capacity: 30kW Heating system with independent heater, 3 radiators inside vehicle (3×170W square-box radiators, or 2×170W square-box radiators + 1 wall-mounted radiator) |
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| — — | Basic Water Heating- Heating system without independent heater, 3 radiators inside vehicle (3×170W square-box radiators, or 2×170W square-box radiators + 1 wall-mounted radiator) |
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| — — | Independent water pump for warm air supply (high-altitude and cold regions) | |
| Defroster | Step-adjustable defroster, 24V, 280W | — — |
| Audio-visual System | MP3 player with USB interface | MP5 system with 17"/19" color display |
| Lamp | Front & rear combination lamps | — — |
| Wiper | Parallel-wiping electric wiper | — — |
| Hatch Door | Steel side cabin door | Aluminum alloy side cabin door |
| Seats | 23 seats, shock-absorbing driver seat, fabric ordinary seats, aisle-side seats with armrest as standard | Mid-range seats (white+black faux leather upholstery, adjustable backrest, upward-lifting armrests) |
| Paint | Domestic solid-color paint | Metallic paint |
| Others | Color-point vinyl flooring, 2 fire extinguishers (2KG), 3 safety hammers, electronic clock, Model DC816A horizontal ordinary skylight, front sun visor (standard vehicle), front driver & co-driver double half-roller sun visor (air-conditioned vehicle), air horn, full-vehicle seat belts, full-vehicle seat belt alarm, mechanical power-off switch, GPS driving recorder, passenger door telescopic step, TBOX, engine compartment, battery compartment, optional independent warm air compartment, manual-integrated fire extinguishing device | Foldable curtains for side windows and rear windshield, roll-down pull curtains (for rear container doors), driver’s compartment fan (optional only for standard vehicles), 2.5mm aluminum checkered flooring, 1.2mm aluminum checkered flooring, Model DC816B horizontal electric ventilation skylight, roof rack (note: no skylight configuration when roof rack is selected), reverse monitoring system, warning lights and siren, (other special configuration requirements shall be agreed in the order contract) |
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Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
