208-27-00150 208-27-00151 Final Drive for Komatsu PC400-6 | High-Efficiency Axial Piston Travel Motor | Reinforced Multi-Stage Planetary Reduction Gearbox

The 208-27-00150 / 208-27-00151 Final Drive Assembly is a heavy-duty track drive unit precision-engineered for Komatsu PC400-6 hydraulic excavators in the 40-ton machine class. This integrated propulsion system combines a high-efficiency axial piston travel motor with a two-stage planetary reduction gearbox, delivering the robust torque output and structural integrity required for heavy construction, quarry operations, and large-scale infrastructure development projects.

The PC400-6 platform operates in demanding conditions worldwide, and our final drives are specifically adapted to regional environmental challenges:

• North America & Europe: Upgraded with reinforced planetary carriers and oversized taper roller bearings to handle continuous high-load cycles in scrap handling, demolition, and highway construction applications
• Southeast Asia & Oceania: Features heavy-duty Duo-Cone floating seals with enhanced corrosion resistance to prevent contamination from abrasive laterite soils, monsoon mud, and coastal saline environments encountered in marine and reclamation work
• Middle East & Africa: Optimized thermal management through enlarged oil sump capacity and improved cooling fin geometry on the motor housing, maintaining stable operating temperatures during extended shifts in open-pit mines and desert operations above 50°C ambient temperature

• Hydraulic System Care: Monitor case drain flow rate during routine servicing; flow exceeding 15 L/min indicates internal motor wear requiring rebuild inspection. Replace hydraulic return filters every 250 hours and pilot circuit filters every 500 hours to prevent particulate contamination from accelerating travel motor component degradation
• Gear Oil Management: Drain and replenish planetary gearbox oil every 500 operating hours under standard conditions, or every 250 hours in severe dust, high-humidity, or elevated temperature environments. Use SAE 80W-90 API GL-5 mineral gear oil; verify floating seal compatibility before switching to synthetic alternatives
• Mounting Hardware Protocol: Always install new OEM-grade mounting bolts with medium-strength anaerobic thread locker. Tighten in a three-stage cross-pattern sequence at 40%, 70%, and 100% of specified torque to achieve uniform clamping force and prevent housing distortion
• Pre-Operation Priming Procedure: Before initial engine start following final drive replacement, completely fill the travel motor housing with clean ISO VG 46 hydraulic oil through the uppermost port. Rotate the output shaft manually in both directions to expel trapped air, then verify oil level before startup to prevent dry-running damage to piston shoes, cylinder block, and valve plate surfaces

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 and upholding our responsibilities.

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Our efficient execution and rigorous manufacturing approach ensure our products meet over 95% of original performance specifications. This commitment has built widespread trust in the industry.

We maintain a ready inventory of over 500 assembly types, providing access to more than 6,000 different parts. Hydraulic pump, control valve, travel, and swing assemblies are our core products, with particular expertise in large mining excavator components and hard-to-find items.

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
• High-quality products at competitive prices
• Exceptional customer service and support
• Large inventory, short delivery times, and long warranty periods
• Professional expertise with accurate part number identification