208-27-00243 Final Drive for KOMATSU PC400LC-7 PC400LC-8 PC450LC-7 PC450LC-8 -7EO -8EO PC400 PC450 Excavator Travel Track Motor with Reducer

• Part Name: Full Final Drive Assembly (Hydraulic Travel Motor + Planetary Reducer Integrated Track Drive Device)
• Main OEM Part Number: 208-27-00243
• Cross Interchange Part Numbers:

  Supersession PN: 208-27-00240, 208-27-00241, 208-27-00242, 208-27-00312

  Matching internal travel motor head: 706-8J-01012, 706-8J-01030, 706-8J-01411, 706-8J-01421

• Compatible Heavy Excavator Models (Standard & E0 Emission Version)

  Komatsu PC400LC-7, PC400LC-7EO

  Komatsu PC400LC-8, PC400LC-8EO

  Komatsu PC450LC-7, PC450LC-7EO

  Komatsu PC450LC-8, PC450LC-8EO

  Also fits PC400-7, PC450-7, PC400-8, PC450-8 standard chassis machines

• Available Quality Options:

  ✅ Genuine Original Factory New

  ✅ Professionally Fully Rebuilt (All wear components replaced + bench calibrated)

  ✅ High Precision Premium Aftermarket New

• Warranty Policy: 12 months for Genuine & Rebuilt units; 6–12 months for aftermarket assemblies
• Approximate Net Weight: 1750 kg
• Stock Status: In stock, shipped out within 3–7 working days after order confirmation

• Manufactured strictly to Komatsu OEM drawings, perfectly matched original hydraulic system for Dash-7 & Dash-8 series long-carriage excavators, compatible with E0 emission configuration
• Built-in two-speed switching valve: high-speed mode for site relocation, low-speed high-torque mode for slope climbing, muddy terrain and heavy mining excavation
• Integrated spring-applied hydraulic-release multi-disc parking brake + built-in counterbalance valve, prevents track slipping on inclines and eliminates hydraulic shock during forward/reverse switching
• Double planetary reduction gear structure outputs large driving torque, strong overload resistance, stable performance under long-cycle mining, quarrying and bulk earthmoving harsh working conditions
• Direct bolt-on replacement design, identical mounting hole layout, oil port layout and sprocket hub spline interface; no cutting, welding or machining modification required during field repair
• Forged alloy steel planetary gears with quenching & tempering heat treatment for excellent wear resistance; thick cast iron housing equipped with heavy-duty floating seal assembly to block mud, water and dust ingress
• Every finished assembly passes full hydraulic pressure testing, internal leakage inspection, brake function test, two-speed shift verification and running-in endurance test before delivery; ISO9001 & CE certified

• Assembly Type: Complete Final Drive (Travel Motor + Two-Stage Planetary Reducer Integrated Unit)
• Motor Type: Variable Displacement Axial Piston Travel Motor
• Max System Relief Pressure: 37.3 MPa (373 bar)
• Travel Mode: Switchable high/low two-speed travel
• Brake Structure: Spring-applied static parking brake, hydraulic release
• Reduction Form: Two-stage planetary gear reduction
• Output Interface: OEM standard spline matched to sprocket hub

PC400LC-7, PC400LC-7EO, PC400LC-8, PC400LC-8EO, PC450LC-7, PC450LC-7EO, PC450LC-8, PC450LC-8EO

208-27-00243, 208-27-00240, 208-27-00241, 208-27-00242, 208-27-00312

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

PC400-7, PC450-7, PC400-8, PC450-8

• Over 13 years specializing in final drives and travel motors for 40–50 ton Komatsu heavy mining excavators
• Three quality grades available to meet different budget and severe construction site working environment demands
• Strict incoming & outgoing QC inspection system to guarantee long-term stable service life
• Sufficient inventory stored in Guangzhou warehouse, flexible sea freight & air freight global shipping solutions
• Professional engineering team provides on-site installation guidance, fault troubleshooting and long-term technical after-sales support
• Integrated one-piece assembly for direct replacement, effectively shortening machine downtime and maintenance cycle

A: 208-27-00243 is the updated universal final drive part number compatible with LC long-carriage models; 208-27-00241 is left side, 208-27-00242 is right side, they are interchangeable in assembly structure for repair matching.

A: Yes. If the planetary reduction gearbox remains intact without gear damage or oil leakage, you can replace only the faulty motor head (706-8J series part numbers) to greatly cut maintenance costs.

A: Rebuilt final drive replaces all worn internal consumable parts (piston, valve plate, planetary gears, friction plates, oil seals), fully bench tested to OEM performance standard with cost advantages. Genuine New is original factory brand-new assembly fully compliant with Komatsu factory drawing and specification.

A: Goods are in ready stock, dispatched within 3–7 working days after order confirmation, worldwide sea and air shipping options available.

This table organizes all listed Komatsu excavator models by series, with complete serial number ranges and official version descriptions, aligned with OEM parts catalog standards.