

Product Introduction
The HDZ425 Hub Reduction Steering Drive Axle is a heavy-duty axle assembly specifically engineered for mining trucks, construction vehicles, military transport trucks, oilfield vehicles, and off-road heavy-duty applications. Featuring a planetary hub reduction structure, the HDZ425 delivers superior torque multiplication, enhanced traction, and exceptional load-carrying performance under extreme operating conditions.
Built according to OEM standards, this steering drive axle integrates steering and driving functions into one assembly, ensuring excellent maneuverability and reliability. The reinforced axle housing, high-strength differential assembly, and planetary wheel-end reduction system provide outstanding durability and reduce maintenance costs.
The HDZ425 is widely used in 6×6 and 8×8 heavy-duty trucks operating in mining, construction, infrastructure, and special transportation sectors. It is an ideal replacement axle solution for fleet operators, truck repair workshops, distributors, and aftermarket truck parts suppliers worldwide.
Technical Specifications
| Item | Specification | Item | Specification |
| Product Name | Hub Reduction Steering Drive Axle | Model | HDZ425 |
| Part Number | HDZ425 | OEM Number | HDZ425 |
| Axle Type | Steering Drive Axle | Reduction Type | Hub Reduction |
| Drive Type | Front Drive Axle | Steering Function | Yes |
| Differential Type | Heavy Duty Differential | Wheel End Type | Planetary Hub Reduction |
| Rated Load Capacity | 13T / 16T / 18T / 20T | Front Axle Load Rating | 13,000 KG / 16,000 KG / 18,000 KG / 20,000 KG |
| Gross Axle Weight Rating (GAWR) | Up to 20,000 KG | Gross Vehicle Weight Support | Up to 120,000 KG |
| Gear Ratio | 4.266 / 4.769 / 5.262 / 5.921 | Track Width | 2030 mm - 2150 mm |
| Steering Angle | Up to 40° | Wheel Stud Configuration | 10 × M22 × 1.5 |
| Brake Type | Drum Brake / Disc Brake Optional | Housing Material | High Strength Cast Steel |
| Application | Mining & Construction Trucks | Condition | Brand New |
| Quality Standard | OEM Replacement | Warranty | 12 Months |
| Packaging | Export Standard Packaging | Origin | China |
Vehicle Fitment
| Vehicle Brand | Compatible Models |
| SHACMAN | X3000 6×6, X5000 6×6, F3000 AWD Series, H3000 Mining Series |
| SINOTRUK HOWO | HOWO 6×6, HOWO 8×8, HOWO Mining Truck, HOWO Off-Road Truck |
| BEIBEN | NG80 AWD Series, NG80 Mining Truck |
| NORTH BENZ | 6×6 Off-Road Truck, 8×8 Heavy Transport Truck |
| DONGFENG | Tianlong AWD Series, Off-Road Engineering Vehicle |
| FAW JIEFANG | J6P AWD Series, Heavy Construction Vehicle |
| XCMG | Mining Dump Truck Series |
| SANY | Mining Truck Series |
| LIUGONG | Heavy Mining Vehicle Series |
| CAMC | Heavy Duty Construction Truck Series |
Payment & Shipping
| Category | Options |
| Payment Methods | T/T (Bank Transfer), PayPal, Western Union, MoneyGram, Visa, MasterCard, L/C (Letter of Credit), Alibaba Trade Assurance |
| Express Shipping | DHL, FedEx, UPS, TNT |
| Freight Shipping | Air Freight, Sea Freight, Railway Freight |
| Delivery Time | Express: 3-7 Working Days; Air Freight: 7-15 Days; Sea Freight: 20-45 Days |
| Shipping Coverage | Worldwide Shipping Available |
| Trade Terms | EXW, FOB, CFR, CIF, DDP |
Related Products Categories
| Section/System | Common Spare Parts |
| Cylinder Block & Cylinder Head | Cylinder Block, Cylinder Head, Cylinder Liner, Piston, Piston Ring, Cylinder Head Gasket |
| Crankshaft System | Crankshaft, Connecting Rod, Main Bearing, Connecting Rod Bearing, Thrust Washer |
| Fuel System | Fuel Injector, Fuel Pump, Injector Nozzle, Fuel Filter |
| Cooling System | Water Pump, Thermostat, Radiator, Fan Clutch |
| Lubrication System | Oil Pump, Oil Filter, Oil Cooler, Oil Pan |
| Turbocharger System | Turbocharger, Turbo Repair Kit, Intercooler, Intake Pipe |
Transmission & Drivetrain Parts
| Section/System | Common Spare Parts |
| Clutch System | Clutch Disc, Pressure Plate, Release Bearing, Clutch Booster |
| Transmission System | Gearbox Assembly, Synchronizer, Gear Set, Shift Fork |
| PTO System | PTO Assembly, PTO Pump, PTO Gear, PTO Seal |
| Driveshaft System | Driveshaft Assembly, Universal Joint, Center Bearing |
| Differential System | Differential Assembly, Crown Wheel & Pinion, Differential Bearing |
| Section/System | Common Spare Parts |
| Front Axle | Steering Axle, Kingpin Kit, Steering Knuckle, Wheel Bearing |
| Drive Axle | Hub Reduction Axle, Differential Housing, Half Shaft, Axle Housing |
| Suspension System | Leaf Spring, Air Spring, Shock Absorber, Equalizer Beam, U-Bolt |
| Brake System | Brake Drum, Brake Disc, Brake Chamber, Slack Adjuster |
| Steering System | Steering Gearbox, Power Steering Pump, Drag Link |
| Wheel Hub System | Wheel Hub, Wheel Bearing, Hub Oil Seal, Wheel Bolt |
Cabin & Body Parts
| Section/System | Common Spare Parts |
| Cabin Assembly | Cabin Shell, Cabin Suspension, Cabin Lock |
| Dashboard System | Dashboard Panel, Instrument Cluster, Switch Assembly |
| Door System | Door Assembly, Door Lock, Door Handle, Window Regulator |
| Seat System | Driver Seat, Passenger Seat, Seat Shock Absorber |
| Electrical System | Headlamp, Tail Lamp, Wiring Harness, Relay |
| Air Conditioning System | AC Compressor, Condenser, Evaporator, Blower Motor |
