Full OEM Interchangeability Identical mounting flange, spline, hydraulic port and overall dimensions as original 05901037, 05818892, 05901333 Bomag gearbox, no modification needed for direct installation on BW202AD-4, BW203AD-4 and matching road rollers.

Heavy-Duty Three-Stage Planetary Structure High-strength alloy steel gears with quenched hard tooth surface support 32000–48000 N·m rated torque and 48000 N·m peak torque, stable to resist frequent compaction impact loads.

Integrated Multi-Disc Parking Brake Built-in spring-applied hydraulic release brake avoids extra brake assembly, effectively preventing roller sliding on slopes for safer construction work.

Stable Hydraulic Matching Performance Perfectly compatible with A6VM55/A6VM80 walking motors, works steadily under 320 bar rated pressure and 380 bar peak pressure without internal leakage.

Premium Sealing & Wide Temperature Adaptability Fluorine rubber sealing components resist high temperature and asphalt mud erosion, suitable for long-time operation under -25℃ to +85℃ working environment.

Cost-Effective Alternative Spare Part XLF Hydraulic remanufactured replacement with reliable quality, shorter delivery lead time and competitive price compared with original Bomag spare parts, ideal for machinery repair wholesalers.

Q: Which machines fit this gearbox reducer?
A: Gearbox Part No.05901037, 05818892 and 05901333 are exclusively designed for BOMAG BW202AD-4, BW203AD-4, BW213D-4 double drum road rollers and BF600 asphalt pavers.

Q: Direct OEM interchangeable?
A: Yes. Input spline flange, output wheel mounting flange, bolt hole layout and overall dimensions match the original OEM unit 1:1, plug-and-play replacement without cutting or adapter modification.

Q: Key technical specs?
A: Rated working pressure 320 bar, peak pressure 380 bar; max output torque range 32000–48000 N·m. It adopts integrated 3-stage carburized hard-tooth planetary transmission structure with built-in parking brake.

Q: Compatible with original hydraulic motors?
A: Perfectly matched with original Rexroth A6VM55 / A6VM80 hydraulic motors via standard internal spline input flange, fits factory original walking hydraulic circuits directly.

Q: Stable compaction performance?
A: Precisely ground carburized alloy planetary gears minimize vibration, friction and abrasion, delivering consistent low-speed high torque to handle long-hour asphalt paving, climbing and frequent start-stop construction work.

Q: Heavy-duty upgraded options available?
A: Optional thickened reinforced gear assemblies, multi-layer fluorine rubber floating seal kits and heavy-duty roller bearings for frequent overload, high-temperature asphalt construction sites.

Q: Recommended lubricant & maintenance cycle?
A: ISO VG460 EP extreme pressure industrial gear oil. Check oil level and seals daily; fully drain and replace gear oil every 1000 working hours under dusty road construction conditions.

Q: Troubleshoot leakage & overheating?
A: Retighten mounting bolts for minor oil seepage; replace full seal kit for serious leakage. Overheating generally results in degraded lubricant, insufficient oil volume or worn internal gears. Follow official maintenance guides, unauthorized disassembly is not recommended.

Q: Warranty terms?
A: 12-month factory warranty. Free technical consultation and free spare parts replacement for failures caused by non-human damage under standard operating conditions.