KELI EC360B EC360BLC EXCAVATORS FINAL DRIVE ASSEMBLY FINAL DRIVE MOTOR 14528259

The Final Drive Gearbox Motor (Part No. 14528259) is a heavy-duty, high-torque travel propulsion unit manufactured by KELI for the EC360B and EC360BLC crawler excavators. Operating in the 36-ton machine class, this assembly combines a high-displacement axial piston hydraulic motor with a rugged multi-stage planetary reduction gearbox, delivering exceptional tractive effort and reliable travel performance under sustained heavy-load conditions.

Designed as a direct OEM replacement, it ensures precise fitment and factory-specified hydraulic performance, with KELI's proven aftermarket quality and durability.

• North America & Europe: Engineered for heavy civil construction, road building, and infrastructure projects, with reinforced housing and enhanced sealing to withstand extreme temperature variations, abrasive materials, and continuous high-cycle operation.
• Southeast Asia & Oceania: Equipped with heavy-duty floating seals that resist ingress of highly abrasive laterite soils, clay, and tropical mud common in mining, quarrying, and large-scale earthworks projects.
• Middle East & Africa: High-temperature seals and corrosion-resistant materials protect against sand erosion, thermal stress, and airborne particulate contamination in arid desert and semi-arid environments.

• High-Torque Axial Piston Motor: The swashplate-type motor design delivers strong starting torque and smooth speed control, enabling efficient tracking on steep slopes, soft ground, and uneven terrain typical of large excavator applications.
• Multi-Stage Planetary Reduction: The gearbox employs case-hardened alloy steel planetary gears with precision-ground tooth profiles, ensuring uniform load distribution across multiple stages and maximizing service life between major rebuilds.
• KELI Aftermarket Reliability: Manufactured to meet or exceed original specifications, with strict quality control on materials and machining tolerances, providing a cost-effective alternative without compromising performance.
• Heavy-Duty Structural Integrity: The ductile iron housing features reinforced ribbing and stress-relieved construction to resist structural fatigue under continuous shock loading from tramming over rough terrain. Dual-cone floating seals with heavy-duty dust wipers provide robust protection against contamination.
• Precision OEM Replacement Fit: All mounting bolt patterns, pilot diameters, spline connections, and hydraulic port locations match original specifications for the EC360B / EC360BLC models, enabling seamless installation with minimal machine downtime.
• Extended Service Life Under Heavy Loads: Designed with oversized bearings, hardened gear sets, and optimized lubrication pathways to withstand the demands of continuous production schedules in the most demanding working conditions.

• Hydraulic System Care: Routinely inspect case drain lines for restrictions, kinks, or blockages. A restricted drain line can generate excessive back pressure, leading to catastrophic motor rotary group failure or seal damage. Maintain strict hydraulic fluid cleanliness standards and replace return filters at intervals prescribed for heavy equipment.
• Gear Oil Management: Fill the planetary housing with the recommended extreme-pressure gear oil of the correct viscosity grade for heavy-duty applications. Change the oil every 250-500 operating hours under normal conditions, and every 250 hours in severe applications such as continuous quarry work, demolition, or heavy ripping. Perform regular oil sampling and analysis to detect metallic particles as an early indicator of gear or bearing degradation.
• Mounting Bolt Protocol: When reinstalling the final drive gearbox motor, always fit new high-strength bolts meeting the specified grade. Apply a suitable thread locking compound to the bolt threads prior to torquing to factory specifications, preventing loosening caused by extreme vibration and shock loads during travel and digging cycles.
• Pre-Operation 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 production 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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