706-8J-01030 Travel Motor For KOMATSU PC400-7 PC450-7 PC400LC-8 PC400-8 PC450-8 PC450LC-8 PC450LCHD-8 PC490LC-10 PC490-10 PC350HD-8 PC350LL-7E0 Track Motor Only Excavator Parts

• Product Description: Independent travel hydraulic motor head only, used to replace faulty motor part while reusing intact original planetary reduction gearbox for repair cost saving
• Main OEM Part Number: 706-8J-01030
• Cross Interchange Part Numbers:
  706-8J-01012, 706-8J-01411, 706-8J-01421, 706-8J-01011, 706-8J-01020
• Compatible 40~49 Ton Heavy Excavator Models:
  Komatsu PC400-7, PC450-7
  Komatsu PC400-8, PC400LC-8, PC450-8, PC450LC-8
  Komatsu PC490-10, PC490LC-10
  Also fits PC390LC-10 as cross application
• Available Quality Options:
  ✅ Genuine Original New
  ✅ Professionally Rebuilt (Full wear parts replacement + bench performance calibration)
  ✅ High Precision Premium Aftermarket New
• Warranty: 12 months for genuine & rebuilt motors; 6–12 months for aftermarket units
• Approx. Net Weight: 98 kg
• Stock Status: In stock, shipment arranged within 3–7 working days after order confirmation

• Designed per original Komatsu OEM specification, perfectly matching hydraulic system configuration of PC400 / PC450 / PC490 series heavy excavators
• Built-in two-speed switching valve: high speed for site transfer, low speed with high torque for climbing, muddy terrain and heavy digging conditions
• Integrated spring-applied hydraulic-release multi-disc parking brake plus counterbalance valve, preventing track sliding on slopes and suppressing hydraulic shock during forward/reverse switching
• Direct bolt-on replacement design: identical mounting hole pattern, oil port layout and input spline size, no cutting or modification required during field installation
• Reinforced internal components including hardened piston, cylinder block and valve plate; high-pressure resistant housing and improved sealing structure to resist leakage under long-cycle mining & earthmoving operations
• Every unit undergoes strict bench testing including pressure calibration, internal leakage inspection, brake functionality test and two-speed shift verification before delivery; ISO9001 & CE certified

• Type: Variable displacement axial piston travel motor (motor head only, no gear reducer)
• Max relief pressure: 37.3 MPa (373 bar)
• Working mode: Two-speed switchable
• Brake type: Spring applied parking brake, hydraulic release
• Matching interface: Input spline compatible with original two-stage planetary reduction gearbox assembly
• Rotation direction: Standard OEM direction matching machine chassis requirement

PC400-7, PC450-7, PC400-8, PC400LC-8, PC450-8, PC450LC-8, PC490-10, PC490LC-10

706-8J-01030, 706-8J-01012, 706-8J-01411, 706-8J-01421, 706-8J-01011, 706-8J-01020

PC390LC-10

• More than 13 years focused on travel motors and final drives for 39–50 ton Komatsu heavy excavators
• Three quality grades available to meet different budget & usage demands
• Rigorous pre-delivery quality control procedure to guarantee stable performance
• Adequate stock stored in Guangzhou warehouse, flexible sea & air shipping for global clients
• Professional technical team provides installation guidance, troubleshooting and long-term after-sales support
• Economical repair solution instead of purchasing complete expensive final drive assembly

A: Yes, they are superseded alternative OEM part numbers for the identical travel motor unit, fully interchangeable for replacement on all above listed excavators.

A: If the reduction gearbox is still intact with no damage, only replacing the faulty motor head can greatly cut maintenance cost and shorten repair downtime.

A: Rebuilt motor replaces all worn internal consumable parts, fully tested to OEM performance standard with competitive price; genuine new is original factory brand-new assembly complying with full factory specification.

A: Goods are in ready stock, dispatched within 3–7 working days once order confirmed, both sea freight and air freight options available worldwide.