DONGFENG GX 6X4 Tractor

Product Snapshot

• Series:​ DONGFENG Tianlong GX Flagship (Next-Gen Long-Haul Tractor)

• Drive Type:​ 6×4 (Front Single + Rear Tandem Dual)

• Engine:​ Cummins ISZ13 / Dongfeng Z14 13.5L In-line 6 Turbo Diesel

• Power & Torque:​ 520 HP / 560 HP / 600 HP Optional — Max Torque 2,500–2,750 N·m @ 900–1,400 rpm

• Emission Standard:​ Euro V / Euro VI (Selective Catalytic Reduction Urea SCR)

• Transmission:​ FAST 12JSD / 14JSD 12-Speed Manual or ZF AMT 12-Speed (Eco-Roll Enabled)

• GCW (Gross Combination Weight):​ Up to 49,000 kg (49 Ton)

• Wheelbase:​ 3,300 + 1,350 mm

• Cabin:​ High-Roof Flat-Floor Double Sleeper, 4-Point Air Suspension + Hydraulic Dampers

• Fuel Tank:​ 600 L Aluminum Single / 860 L Dual (Main 600 L + Aux 260 L) Optional LNG Cascade

• Certification:​ CCC, ISO 9001:2015, E-Mark Components Available

• Steering:​ LHD Standard / RHD on Request

Product Description

Long-haul success hinges on two metrics: fuel cost per ton-kilometer and uptime. The DONGFENG GX 6×4 Tractor Head is engineered to master both.

Built on the flagship Tianlong GX platform, it pairs the high-torque Cummins ISZ13 or Dongfeng Z14 13.5L engine with a wind-tunnel-optimized cab and a FAST 12-speed or ZF AMT transmission. This combination sustains peak thermal efficiency between 1,100–1,300 rpm, delivering a proven 3–6% fuel saving​ over legacy 6×4 tractors under equivalent GCW loads.

The chassis features an 850 MPa high-tensile steel frame with reinforced hangers to resist torsional fatigue at 49-ton GCW. Thermally balanced cooling and aftertreatment packaging prevent hot-spot degradation during prolonged mountain grades.

Inside, a four-point pneumatically suspended flat-floor cab transforms the workspace. With 2,050 mm of stand-up height, multi-contour air-suspended seating, and dual bunks, the GX functions as a mobile rest station—because well-rested drivers make sharper decisions when conditions turn critical.

Key Features & Highlights

• Powertrain & Driveline
  Cummins ISZ13 / Dongfeng Z14 13.5 L engine with VGT, cooled EGR, and closed-loop urea dosing. Peak torque from 900 rpm reduces downshifting on grades; power bands: 520 hp (general freight) to 560–600 hp (mountainous/time-sensitive cargo). FAST 12JSD manual (0.78:1 overdrive) or optional ZF TraXon / FAST AMT with hill-hold, creep mode, Eco-Roll coasting function, and predictive ratio selection based on grade/load/throttle.

• Chassis & Load Capacity
  280 × 80 × (8+4) mm reinforced ladder frame, 7 t front parabolic leaf suspension, rear tandem with 10/13-leaf progressive springs and V-rod torque rods; air suspension optional. 13-ton drive axle (ratio 2.69–4.44), fifth-wheel height adjustable 1,150–1,310 mm. Rated for 49 t GCW with stable handling across varied pavement.

• Cab Comfort & Driver Environment
  ECE R29 high-roof flat-floor cab, 620 mm upper bunk, thick foam lower mattress, blackout curtains, programmable pre-heater. 7" TFT display (fuel economy, DPF regen, fault codes); center-console controls for PTO, diff lock, retarder, mirror defrost. 24V–220V inverter, USB/12V outlets, map light, lockable storage.

• Aerodynamics & Efficiency
  Roof deflector, side fairings, chamfered bumper reduce CdA by ~8% vs. predecessors — lowering fuel consumption at highway speeds >70 km/h.

• Fuel & Range
  Standard 600 L aluminum tank (1,000–1,200 km range at 35–40 L/100 km for 40 t GCW); dual-tank option extends to 1,600+ km. 60 L DEF tank aligned with oil-change interval; -35 °C coolant; 80 Ah × 2 maintenance-free batteries.

• Safety & Braking
  ABS + EBS + ESC + ASR, LDWS, FCWS, TPMS. Full air dual-circuit brakes; front disc brake option (330 × 28 mm). Engine exhaust brake (320 kW retarding) plus optional Voith/Telma hydraulic retarder for fade-free descent control on alpine routes.

• Telematics & After-Sales
  DONGFENG WindLink (or fleet platform bridge) tracks fuel, idle time, DTCs, geo-fencing. Full parts catalog, workshop manual (English/Spanish/Russian), PM schedule (oil @ 50,000 km, fuel filter @ 20,000 km). Regional parts stockists, authorized service points, and SKD/CKD support for volume buyers.

Technical Specifications

Why Choose Our DONGFENG GX 6×4 Tractor

• Flagship-Class Proven Platform:​ The Tianlong GX is DONGFENG's top-tier export tractor, field-tested in Southeast Asia, Africa, the Middle East, and South America under GCW 40–49 t conditions.

• Best-In-Class Torque-to-Weight Ratio:​ Z14 13.5 L engine delivers up to 2,750 N·m, enabling confident hill climbing without excessive downshifts — saving time and reducing drivetrain thermal stress.

• Transparent Total Cost of Ownership:​ High thermal efficiency, extended drain intervals, and globally available FAST / Cummins / ZF service parts keep operating costs predictable.

• Driver Retention Advantage:​ A quiet, flat-floor sleeper cab with climate control and ergonomic seating helps fleets attract and retain experienced drivers — a hidden but significant cost factor.

• Regulatory Readiness:​ Euro V / Euro VI compliance, CCC type approval, and component-level E-mark / CE documentation simplify import clearance and road registration.

• Dedicated Export Support:​ Pre-shipment PDI report, container or Ro-Ro booking assistance, and post-arrival commissioning guidance via video or on-site technician dispatch (where available).

FAQ — DONGFENG GX 6×4 Tractor HEAD

Q1: Which engine displacement and horsepower is best for my operation?​

For general 40 t GCW freight on relatively flat highways, the 520 HP (Z14 / ISZ13) is the most economical choice. For mountainous terrain, frequent starts/stops, or when hauling near the 49 t GCW limit, the 560 HP or 600 HP variants provide better gradeability and reduce transmission cycling.

Q2: Is the AMT transmission reliable for heavy-haul and steep grades?​

Yes. The ZF TraXon-based or FAST AMT units used in the GX are programmed with grade-sensing algorithms, a dedicated crawl mode for docking, and a manual override. They are widely adopted in European and Asian long-haul fleets and require no special driver retraining beyond a short familiarization session.

Q3: What is the recommended service interval?​

Engine oil and filter: every 50,000 km or 12 months (whichever first). Fuel filter: 20,000 km. Air filter: inspect at 20,000 km, replace per restriction indicator. DPF ash cleaning: typically 300,000–400,000 km depending on duty cycle. Full PM schedule is supplied in the owner's manual.

Q4: Can the fifth-wheel height be adjusted to match our existing trailers?​

Yes. The fifth-wheel mounting plate has multiple hole positions and can be shimmed. We confirm your trailer kingpin height before production to set the correct default position.

Q5: Are LHD and RHD versions available, and do instruments support multiple languages?​

Both LHD and RHD bodies are available. The instrument cluster supports English, Spanish, French, Arabic, and Russian — selectable via the menu button on the steering wheel or dash.

Q6: Does the truck come with telematics / fleet management capability?​

Standard fitment includes DONGFENG WindLink telematics hardware. Data export (fuel, fault codes, GPS) can be accessed via web portal; API bridging to third-party fleet software is possible with prior arrangement.