Kubota RD511-61290 KX161-3 EXCAVATORS FINAL DRIVE ASSEMBLY FINAL DRIVE MOTOR HIGH QUALITY TRAVEL MOTOR CONSTRUCTION MACHINERY

The Travel Motor / Final Drive (Part No. RD511-61290) for the Kubota KX161-3 compact excavator is a rugged, high-torque propulsion unit engineered for general construction, utility, and earthmoving applications in the 16-ton machine class. This assembly integrates a high-efficiency axial piston hydraulic motor with a precision multi-stage planetary reduction gearbox, delivering reliable tractive effort and smooth travel performance across a wide range of job site conditions.

Designed as a direct OEM replacement, this final drive ensures exact fitment and factory-specified hydraulic performance for the KX161-3 model.

• North America & Europe: Designed for medium-scale construction, road building, and infrastructure projects, with enhanced cold-weather sealing for reliable operation during winter months and consistent performance in wet conditions.
• Southeast Asia & Oceania: Equipped with heavy-duty floating seals that resist ingress of abrasive mud, clay, and tropical soils common in drainage, foundation, and plantation projects in high-humidity environments.
• Middle East & Africa: Reinforced housing and high-temperature seals protect against sand abrasion and thermal stress in arid desert conditions, ensuring dependable performance on dusty construction sites.

• Hydraulic System Care: Routinely inspect case drain lines for restrictions, kinks, or blockages. A restricted drain line can generate excessive back pressure, potentially causing motor seal failure or rotary group damage. Always maintain clean hydraulic fluid and replace return filters according to the machine's prescribed service schedule.
• Gear Oil Management: Fill the planetary housing with the recommended extreme-pressure gear oil of the correct viscosity grade. Change the oil every 250-500 operating hours under normal conditions, and every 250 hours in severe applications such as demolition, foundation work, or continuous heavy digging. Examine drained oil for metallic particles as an early diagnostic indicator of gear or bearing wear.
• Mounting Bolt Integrity: When reinstalling the travel motor assembly, always fit new high-strength bolts. Apply a suitable thread locking compound to the bolt threads prior to torquing to factory specifications, preventing loosening caused by continuous vibration and shock loads during travel and digging operations.
• Pre-Start Priming Procedure: Before initial startup or after final drive replacement, fill the motor housing with clean hydraulic oil to purge trapped air pockets. Run the machine at low idle for several minutes, cycling the tracks forward and reverse, to ensure complete lubrication of all planetary components before engaging heavy operational loads.

Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District. With nearly 15 years of experience, we specialize in engineering machinery hydraulics and are committed to delivering practical solutions.

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Factory Production Line

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For large items, we use sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention given to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof wrapping.

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• One-stop solution provider for all hydraulic component needs
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