Komatsu PC200-8 PC200 Travel Gearbox 2nd Planetary Carrier Spider With Sun Gear Assy for 205-27-71550 205-27-71510 04020-00616

This matched second-stage planetary spider and sun gear assembly serves as the midstream power reduction core inside the travel motor final drive, engineered exclusively for Komatsu PC200 and PC200-8 medium crawler excavators. Continuous digging, road grading, swamp construction and frequent site transfers over uneven rock and mud terrain expose this key transmission piece to constant torque shifts and repetitive impact force. Damage to the 2nd-stage planetary unit including spider cracks, sun gear tooth loss and internal spline wear will directly lead to unequal track speed, weak digging traction, persistent metal friction noise and excessive heat buildup within the travel drive housing.

All gear tooth outlines, inner spline measurements and mounting hole sizes strictly comply with Komatsu’s original factory production specifiions. The three interchangeable OEM reference numbers 205-27-71550, 205-27-71510 and 04020-00616 can be cross-used during travel gearbox maintenance rebuilds. The unit is a direct drop-in replacement requiring no on-site cutting or hole reaming, drastically cutting downtime for maintenance teams. This advantage is especially prominent for global fleets where authentic Komatsu OEM parts face long lead times and supply shortages for this widely used mid-size excavator.

1. Three Interchangeable Part Numbers, Customized for Komatsu PC200 / PC200-8 Final Drive System

   The three part numbers 205-27-71550, 205-27-71510 and 04020-00616 can be freely substituted during travel reducer overhauls. This carrier and sun gear combination is precisely molded to match the internal structure of PC200/PC200-8 travel gearboxes and cannot be mounted on other Komatsu excavator models. Strict 1:1 dimensional repliion maintains optimal gear meshing gaps, eliminating track deflection, jittery movement, harsh internal grinding sounds and accelerated part wear after installation.

2. Integral Forged Body Structure Improves Long-term Durability Under Cyclic Construction Loads

   Many cheap aftermarket planetary carriers easily develop spider fractures or broken sun gear teeth under long hours of repeated construction shocks. Our one-piece forging technology combined with full multi-stage heat treatment greatly boosts impact resistance and fatigue resistance. It delivers stable consistent operation during non-stop excavation cycles and frequent cross-site transport for rental and pre-owned excavator fleets.

3. Two-Stage Pre-Shipment Quality Inspection Eliminates Hidden On-Site Breakdown Risks

   Every finished assembly passes two separate independent inspection procedures before leaving the factory. Comprehensive dimension calibration verifies all matching tolerances for gears and inner splines. Simulated mine heavy-load testing reproduces real construction working stress to confirm transmission stability. All defective semi-finished products are screened out internally, helping repair shops and equipment owners avoid unplanned machine shutdown losses.

4. Economical Maintenance Solution for Medium Excavator Fleet Operators & Local Service Shops

   Genuine Komatsu planetary drive spare parts carry high purchase costs and unstable supply cycles for this mainstream medium excavator model. This aftermarket assembly achieves load-bearing performance and service life equivalent to OEM standards at factory direct prices, lowering recurring maintenance costs for enterprises managing multiple PC200 and PC200-8 excavator assets.

5. Diversified Global Shipping Options for International Machinery Spare Parts Wholesalers

   In-stock items can be shipped out within 3 working days once payment is confirmed. Air freight service ers to urgent breakdown orders from remote construction and mining areas. Consolidated sea cargo and full container shipping provide cost-saving bulk procurement plans for distributors covering Africa, Southeast Asia, Middle East and Latin American regions.

Our production plant has over 10 years of specialized R&D and mass production experience in excavator final drive planetary components. Travel gearbox planetary assemblies are our core flagship product line. Our closed-loop production workflow covers alloy steel forging, high-precision gear cutting, professional heat treatment and finished product load simulation evaluation. Dedied heavy-load test benches simulate harsh quarry and infrastructure construction environments to continuously upgrade the product’s shock resistance and long service life. Our planetary spare parts are exported to dozens of countries, establishing stable long-term cooperative relationships with heavy machinery spare parts dealers all over the world.