DuraMac 4×4 Off-Road Trucks EQ6680ZT6D
Dongfeng EQ6680ZT6D is a National VI standard bus with an overall length of 6800mm, suitable for scenarios such as urban-rural passenger transport. It is equipped with the Dongfeng Cummins D4.0NS6B170 engine, adopting a front-engine rear-drive layout and matching a 6-speed manual transmission, with a rated power of 125kW and a maximum speed of 100km/h. Its comprehensive performance meets the needs of short-to-medium-distance passenger transport.
In terms of the chassis, the bus is equipped with Dongfeng Dana axles, a few-leaf spring suspension and pneumatic brake system to ensure driving stability. The body adopts a semi-load-bearing structure, with a common softened interior, basic facilities such as side windows and manual outward-swinging doors, and optional fully enclosed windows. In addition, the vehicle is equipped with an independent air conditioning and heating system, which can meet riding comfort in different environments. Its overall configuration fits the practical needs of the passenger transport market.
We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.
Advantages of Dongfeng EQ6680ZT6D 4×4 Off-Road Trucks
4×4 Off-road: Professional 4×4 system, maximum gradient of 60%.
Safe and Reliable: Standard ABS anti-lock braking system and satellite positioning recorder.
Spacious interior space: It meets the small and high-level seat space layout.
Flexible Passenger Capacity: 10-23 seat layout, adaptable to various special operation scenarios.
Technical Specifications
| Total Length (mm): | 6800 |
| Total Width (mm): | 2280 |
| Total Height (mm): | 3020 (Regular Vehicle) 3155(Full Roof air Conditioner) |
| Interior Height (mm) | 1730 |
| Wheelbase (mm): | 3800 |
| Front Suspension / Rear Suspension (mm): | 1340/1660 |
| Approach/Departure Angle (°): | 27/20 |
| Step Height (mm): | 550 |
| Rated Maximum Gross Vehicle Weight (kg) | 8150 |
| Rated Number of Passengers (Persons) | 10-23 |
| Top Speed (km/h) | 100 |
| Minimum Ground Clearance (mm) | 245 (4×4 part-time drive) |
| Track (Front/Rear) (mm) | 1810/1700 |
Model | Total Length(mm) | Overall Width(mm) | Total Height(mm) | Maximum Speed (km/h) | Maximum Total Mass(kg) |
| EQ6680ZT6D | 6800 | 2280 | 3020 (Standard Vehicle) 3155 (With Full-Top Air Conditioning) | 100 | 8150 |
| EQ6820ZT6D | 8200 | 2380 | 3050 (With Sunroof) 3250 (With Full-Top Air Conditioning) | 100 | 12000 |
| EQ6600ZT6D | 5990 | 2280 | 2810(Standard Vehicle) 3030(With Full-Top Air Conditioning) | 100 | 7300 |
| EQ2125GTJ2 | ≤6700 Customizable Upon Request | ≤2550 | ≤3150(Fully Loaded) ≤3300(No-load) | 110 | 12500 |
| EQ2111GTJ2 | ≤6700 Customizable Upon Request | ≤2550 | ≤3150(Fully Loaded) ≤3320(No-load) | 120 | 11000 |
| EQ2120GTJ2 | ≤6700 Customizable Upon Request | ≤2550 | ≤3150(Fully Loaded) ≤3320(No-load) | 120 | 12500 |
| EQ2123GTJ2 | ≤6800 Customizable Upon Request | ≤2550 | ≤3150(Fully Loaded) ≤3320(No-load) | 120 | 12500 |
| EQ2124GTJ2 | ≤6700 (Customizable Upon Request) | ≤2550 | ≤3150(Fully Loaded) ≤3150(Fully Loaded) | 120 | 12500 |
| ——END—— | |||||
Basic information of Dongfeng EQ6603LT6A motor | |||
| 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 |
| ——END—— | |||
Chassis Parameters And Configuration | ||
| 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 14PR | — — |
| Battery/Generator | 6-QW-120MF x 2 / 28V 150A | — — |
| others | Copper radiator, urea pipe electric heater, engine preheater, steering damper, and for high-altitude areas: silicone hoses (radiator inlet and outlet, cooling pipes, and water heating pipes) with compensation clamps | — — |
| ——END—— | ||
Main body Assembly | ||
| Item | Standard Configuration | Optional configuration |
| Body structure | Body-on-frame | — — |
| Interior | Molded soft interior | — — |
| Doors and Door Pumps | Driver’s and co-driver’s doors (electric lift windows), manually rotating passenger door, rear container-type double doors, rear inner and outer opening double doors | — — |
| Side Windows | Fully bonded windows with middle windows (F green) | Fully bonded closed windows, partial middle windows + partial fully bonded closed windows |
| Windshield | Laminated front windshield, tempered rear windshield | — — |
| Rearview System | Steel frame asymmetric manual lever rearview mirror | — — |
| Air – conditioning System | Full roof-mounted air conditioner (cooling capacity: 14Kw) or driving area air conditioner (cooling capacity: 3.5Kw) | — — |
| Heating System | — — | — — |
| Independent water heating for high-altitude areas – Heating capacity: 30 kW,Heating system with independent heater, equipped with three radiators (three 170W box radiators or two 170W box radiators + one wall-mounted radiator) | — — | |
| — — | — — | |
| Independent water pump for heating (for high-altitude areas) | — — | |
| Defroster | Variable-speed defroster 24V, 280W | — — |
| Audio-visual System | MP3 player with USB interface | — — |
| Lamp | Front and rear combination lamps | — — |
| Wiper | Forward-scraping electric wiper | — — |
| Hatch Door | Steel plate side hatch door | — — |
| Seats | 23 seats, shock-absorbing driver’s seat, mid-range seats (white + black faux leather, adjustable backrest, upward armrests), armrests standard on seats next to the aisle | — — |
| Paint | Domestic plain paint | — — |
| Others | 2.5mm aluminum patterned floor, two fire extinguishers (2kg), three safety hammers, electronic clock, DC816A horizontal sunroof, front sun visor (standard car), double half-width roller sunshades for driver and co-driver (air-conditioned car), air horn, seat belts for all vehicles, driver’s seat belt alarm, mechanical power off switch, GPS driving recorder, passenger door retractable step, T-BOX, engine compartment, battery compartment, optional independent heater compartment with manual and automatic fire extinguishing system, external luggage rack, reverse monitoring system, warning lights and sirens, vehicle curtains | — — |
| ——END—— | ||
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




