Komatsu PC200-6 PC220 Travel Gearbox 2nd Planetary Carrier Spider With Sun Gear

This matched 2nd-stage planetary carrier and sun gear set acts as the mid-stage deceleration core inside travel final drive, custom engineered for Komatsu PC200-6 and PC220 medium crawler excavators, classic models extensively deployed in rural earthworks and urban building projects. Sustained hard digging, hillside grading, muddy field operations and frequent cross-town equipment transfers subject this transmission component to alternating torque stress and random rock impact shocks. If the 2nd planetary unit suffers spider arm rupture, sun gear tooth breakage or spline surface abrasion, operators will encounter uneven track speed, weak walking traction, continuous harsh metal friction noise and excessive heat accumulation inside the travel motor housing.

Every gear tooth profile, inner spline dimension and mounting hole position strictly matches original Komatsu factory drawing standards. The three cross-reference part numbers 20Y-27-13230, 20Y-27-13210, 20Y-27-13220 are interchangeable for gearbox overhaul work. The unit is a direct replacement without extra machining on-site, greatly cutting maintenance downtime. This benefit stands out for global second-hand equipment dealers, as genuine Komatsu OEM parts often face long waiting periods and stock shortages for this aging excavator model.

1. Three Interchangeable OEM Part Numbers, Exclusively Designed for Komatsu PC200-6 & PC220 Final Drive System

   The three part numbers 20Y-27-13230, 20Y-27-13210, 20Y-27-13220 can be mutually replaced during travel gearbox repair and rebuilding. This carrier and sun gear combination is precisely sized to fit the internal cavity of PC200-6/PC220 travel reducers and cannot be fitted onto other Komatsu excavator models. Precise 1:1 dimensional repliion maintains ideal gear meshing clearance, avoiding track deviation, shaky walking, loud internal grinding noise and premature wear of matched transmission components after installation.

2. Thickened One-Piece Forged Frame Extends Service Life Under Long-Term Cyclic Construction Loads

   Most cheap generic aftermarket planetary carriers easily develop cracked spider arms or chipped sun gear teeth under non-stop repeated construction impact loads. Our thickened integral forging craft combined with complete multi-stage constant temperature heat treatment greatly boosts impact resistance and fatigue resistance. It delivers steady torque transmission during round-the-clock digging work and frequent long-distance site reloion for rental and pre-owned excavator fleets.

3. Two Rounds of Pre-Delivery Quality Inspection Eliminate Hidden On-Site Equipment Failure Risks

   Each finished assembly undergoes two separate independent inspection procedures before leaving the factory. Full-range dimension calibration verifies all matching tolerances of gear surfaces and internal splines. Simulated gravel pit heavy torque aging test replies extreme real construction load conditions to verify long-term transmission stability. All unqualified finished products are filtered out internally, helping repair shops and equipment owners avoid costly unplanned construction shutdown losses.

4. High Cost-Performance Repair Solution for Medium Excavator Fleet Operators & Local Maintenance Garages

   Genuine Komatsu original planetary drive spare parts come with high procurement costs and unstable supply cycles for this widely circulated older medium excavator model. This aftermarket assembly reaches OEM equivalent load-bearing performance and service life at factory direct wholesale prices, effectively reducing regular maintenance expenditure for enterprises managing multiple PC200-6 and PC220 excavator assets.

5. Rich Global Logistics Options for International Heavy Machinery Spare Parts Wholesalers

   All in-stock items can be dispatched within 3 working days after payment confirmation. Air freight service handles urgent emergency breakdown orders from remote mountain and rural construction zones. Consolidated bulk sea cargo and full-container shipping provide cost-effective bulk purchase plans for distributors serving Africa, Southeast Asia, Middle East, Central Asia and Latin American markets.

Our production factory has over 10 years of specialized R&D and mass production experience focusing on medium excavator final drive planetary transmission components. Travel gearbox planetary carrier assemblies belong to our top core flagship product range. Our closed-loop production workflow covers alloy steel die forging, 4-axis precision gear cutting, constant temperature professional heat treatment and finished product heavy load simulation evaluation. Custom heavy torque test benches simulate harsh gravel pit and urban infrastructure construction working environments to continuously optimize product shock resistance and extended long service lifespan. Our planetary spare parts are exported to more than 40 countries worldwide, building long-term stable strategic cooperative partnerships with heavy machinery spare parts dealers globally.