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{"title":"Heavy-Duty Final Drive Motor Fits Komatsu PC400-5 PC400-7 | 208-27-00411 208-27","imgUrl":"https:\/\/img.chinax.com\/nimg\/f5\/87\/99c51e4ba52a770fedfa2b4e1410-200x200-1\/heavy_duty_final_drive_motor_fits_komatsu_pc400_5_pc400_7_7c_208_27_00411_208_27.jpg","attrs":{"Category":"Final Drive \/ Travel Motor & Gearbox Assy","Delivery Time":"5-8 Weekdays","Price":"Negotiable price","Brand Name":"IRON CAVALRY"}}
{"title":"High Quality SANY SY485 Excavator Hydraulic Travel Motor with Gearbox Replacemen","imgUrl":"https:\/\/img.chinax.com\/nimg\/f9\/53\/b7269ae3b8b0688ec10c5d247073-200x200-1\/high_quality_sany_sy485_excavator_hydraulic_travel_motor_with_gearbox_replacement_part.jpg","attrs":{"Certification":"CE\u3001ISO","Brand Name":"IRON CAVALRY","Condition\uff1a":"NEW\/REBUILT","Delivery Time":"5-8 Weekdays"}}
{"title":"Final Drive M4V290\/170D GM85VA For SANY SY485 DOOSAN DX520 KOBELCO SK460","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/3f\/7f4ced34e75eea1397acebfa37fc-200x200-1\/final_drive_m4v290_2f170d_gm85va_for_sany_sy485_doosan_dx520_kobelco_sk460.jpg","attrs":{"Place of Origin":"China","Delivery Time":"5-8 Weekdays","Condition\uff1a":"NEW\/REBUILT","Payment Terms":"Western Union,T\/T"}}
{"title":"Use For Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/78\/4d8f00cb0f2c46c432cfec6b2c09-200x200-1\/use_for_hitachi_ex100_3_ex120_3_excavators_travel_assembly_9133168_9122946_final_drive_motor_gearbox_device_high_quality_construct.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"Hitachi EX100-3 EX120-3 Excavators Travel Assembly 9133168 9122946 Final Drive Motor Gearbox Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy Duty Final Drive Complete Travel Motor Assembly 144-5196 for TQCAT 301 301","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/54\/918d4c1741f8d46c30063c9aff43-200x200-1\/heavy_duty_final_drive_complete_travel_motor_assembly_144_5196_for_tqcat_301_301_5_301_6_mini_crawler_excavator_premium.jpg","attrs":{"Packaging Details":"Wooden case or as required","Brand Name":"IRON CAVALRY","Payment Terms":"Western Union,T\/T","Supply Ability":"300pcs \/Month"}}
{"title":"Use For CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/fd\/cd3ef1342be0020671efe4978c2e-200x200-1\/use_for_cat_349d2_352f_349e_349f_excavators_travel_assembly_513_0982_513_0981_513_0979_518_1211_527_7097_final_drive_assembly_devi.jpg","attrs":{"Brand Name":"IRON CAVALRY","Model Number":"CAT 349D2 352F 349E 349F Excavators Travel Assembly 513-0982 513-0981 513-0979 518-1211 527-7097 Final Drive Assembly Device High Quality","Place of Origin":"China","CertifiTQCATion":"CE\uff0c ISO"}}
{"title":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422 |","imgUrl":"https:\/\/img.chinax.com\/nimg\/f8\/71\/2da7df3af892c05ce1fb803b9872-200x200-1\/heavy_duty_final_drive_motor_fits_komatsu_pc220_7_pc220lc_7_7c_206_27_00422_7c_rugged_earthmoving_traction_assembly.jpg","attrs":{"Applicable Industries\uff1a":"MECHANICAL REPAIR SHOPS, RETAIL, CONSTRUCTION, ENERGY, MINING","Brand Name":"IRON CAVALRY","Model Number":"Heavy-Duty Final Drive Motor fits Komatsu PC220-7 PC220LC-7 | 206-27-00422","Price":"Negotiable price"}}
Heavy-Duty Final Drive Motor Fits Komatsu PC400-5 PC400-7 | 208-27-00411 208-27-51240 | Optimized Hydraulic Efficiency | Rugged Multi-Stage Planetary Drive
The 208-27-00411 / 208-27-51240 Final Drive Assembly is a heavy-duty track propulsion unit engineered for Komatsu PC400-5 and PC400-7 hydraulic excavators in the 40-ton machine class. This integrated drivetrain combines a high-displacement axial piston travel motor with a two-stage planetary reduction gearbox, delivering the substantial torque output and impact load resistance required for heavy excavation, mining support operations, and large-scale civil engineering projects.
Product Specifications
Product Name
Heavy-Duty Final Drive Motor Fits Komatsu PC400-5 PC400-7 | 208-27-00411 208-27-51240 | Optimized Hydraulic Efficiency | Rugged Multi-Stage Planetary Drive | Industrial-Grade Power Component
We check and send detailed pictures to buyers for confirmation before shipment
Regional Application & Market Suitability
Global Performance Optimization
The PC400-5 and PC400-7 platforms operate across diverse global job sites, and our final drive is tailored to meet region-specific operational demands:
North America & Europe: Configured with enhanced gear tooth surface hardening and heavy-duty bearing sets to withstand the high-cycle demands of scrap processing, demolition, and infrastructure development in urban renewal projects
Southeast Asia & Oceania: Equipped with advanced triple-lip floating seals and zinc-nickel coated hardware to prevent contamination from abrasive volcanic soils, tropical clay, and coastal salt spray in marine construction and land reclamation applications
Middle East & South America: Features enlarged internal oil passages and optimized housing geometry for superior heat dissipation, maintaining stable thermal performance during extended operation in open-pit mines and desert environments exceeding 50°C ambient temperature
Key Features & Performance Advantages
High-Capacity Torque Delivery: Dual-stage planetary gearset with optimized reduction ratios delivers maximum tractive effort for steep grade climbing and soft terrain navigation while maintaining productive travel speeds for daily haul road cycling
Cross-Model Compatibility: Designed to fit both PC400-5 and PC400-7 undercarriage configurations, providing a single solution for mixed fleet maintenance programs across different machine generations
Structural Integrity: Induction-hardened sun gears, carburized planetary pinions, and heat-treated ductile iron housing resist fatigue cracking and torsional failure under repetitive shock loading from hard rock excavation and deep bucket penetration
Direct OEM Fitment: All mounting bolt hole patterns, hydraulic port thread sizes (JIC 37° flare and SAE O-ring boss), and pilot line port orientations match original Komatsu specifications for straightforward replacement without undercarriage modifications
Expert Maintenance Guidance
Hydraulic System Care: Routinely monitor case drain line backpressure; sustained readings above 7 kg/cm² indicate internal motor wear requiring immediate teardown inspection. Replace hydraulic return filters every 250 operating hours and pilot circuit filters every 500 hours to minimize contaminant circulation through travel motor piston assemblies
Gear Oil Management: Drain and replenish planetary gearbox oil every 500 operating hours under normal conditions, or every 250 hours in severe dust, high-humidity, or high-temperature environments. Always use SAE 80W-90 API GL-5 mineral gear oil; avoid mixing with synthetic oils to prevent floating seal incompatibility
Mounting Bolt Replacement Protocol: Always install new OEM-specification mounting bolts coated with medium-strength thread locker compound. Follow a four-stage cross-pattern tightening sequence at 25%, 50%, 75%, and 100% of specified torque to ensure uniform clamping force distribution and prevent housing distortion
Pre-Start Priming Procedure: Before initial engine startup following final drive installation, completely fill the travel motor housing with clean ISO VG 46 hydraulic oil through the uppermost port. Manually rotate the output shaft in both directions using a pry bar to displace trapped air pockets, then verify oil level before commencing operation to prevent dry-start damage to piston shoes, cylinder block, and valve plate surfaces
About IRON CAVALRY
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.
Manufacturing Facility Exterior
Factory Production Line
Trade Show Exhibition
Professional Team
Technical Leadership & Standards
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.
Product & Inventory Capability
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.
Packaging & Delivery
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.
Secure Product Packaging Example
Why Choose IRON CAVALRY?
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
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
Introduction to Guangzhou Tieqi Construction Machinery Company
Founded in 2010 and headquartered in Guangzhou, China, Guangzhou Tieqi Construction Machinery Co., Ltd. is an integrated manufacturing and trading company specializing in hydraulic system components for construction and mining machiner...
