208-27-00242 208-27-00241 Final Drive for KOMATSU PC300-7 PC400-7 PC400LC-7

• Part Name: Full Final Drive Assembly (Hydraulic Travel Motor + Planetary Reducer Integrated Track Drive Device)
• OEM Side Definition:
  208-27-00241 = Left Hand Final Drive
  208-27-00242 = Right Hand Final Drive
• Cross Interchange Part Numbers:
  Supersession PN: 208-27-00240, 208-27-00312
  Matching internal travel motor head: 706-8J-01012, 706-8J-01030, 706-8J-01411, 706-8J-01421
• Compatible Heavy Excavator Models (30–45 Ton Class, Standard & E0 Version)
  Komatsu PC300-7
  Komatsu PC400-7, PC400LC-7, PC400-7EO, PC400LC-7EO
  Komatsu PC450-7, PC450LC-7, PC450-7EO, PC450LC-7EO
  Also fits PC400-8, PC400LC-8, PC450-8, PC450LC-8 for cross replacement
• 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

• Exact OEM structure matched to Komatsu original hydraulic system, perfectly compatible with standard Dash-7 and EU E0 emission version machines
• Built-in two-speed shift valve: high-speed mode for site relocation, low-speed high-torque mode for climbing slopes, 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 torque, strong overload resistance and stable performance under long-cycle mining & bulk earthmoving harsh working conditions
• Direct bolt-on replacement with identical mounting hole layout, oil port positions and sprocket spline interface; no cutting, welding or machining modifications 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 undergoes full pressure testing, internal leakage inspection, brake performance check, two-speed shift test and running-in endurance verification before shipment; 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
• Side Distinction: 208-27-00241 Left Side, 208-27-00242 Right Side (Not interchangeable left-right)
• Output Interface: OEM standard spline matched to sprocket hub

PC300-7, PC400-7, PC400LC-7, PC400-7EO, PC400LC-7EO, PC450-7, PC450LC-7, PC450-7EO, PC450LC-7EO

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

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

PC400-8, PC400LC-8, PC450-8, PC450LC-8

• Over 13 years specializing in final drives and travel motors for 30–50 ton Komatsu heavy mining excavators
• Three quality grades available to meet different budget and harsh construction site requirements
• 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
• Complete one-piece assembly for direct replacement, effectively shortening machine downtime and maintenance cycle

A: No. 208-27-00241 is dedicated left final drive, 208-27-00242 is dedicated right final drive; internal oil circuit layout differs, cross installation will cause abnormal travel speed, weak traction or movement failure.

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 consumable internal 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.