Hitachi EX200-2 Travel Gearbox 1st Planetary Carrier Spider With Sun Gear Assy

This first‑stage planetary spider and sun gear combined assembly acts as the primary power transfer heart inside the travel reduction final drive for Hitachi EX200‑2 crawler excavators. Deployed in earth‑moving sites, rock digging projects and bumpy off‑road travelling scenarios, this key transmission component endures fluctuating torque plus repetitive shock loads each time the machine digs, turns and travels. The overall track driving performance heavily depends on the working integrity of this 1st‑stage planetary group.

Every critical dimension, internal spline profile and mounting hole position strictly follows original Hitachi engineering drawings, fully interchangeable with three reference part numbers:1013982, 3047447, 2028213. Field mechanics can perform direct replacement without any cutting, drilling or secondary modification. It greatly shortens equipment idle time, especially when genuine OEM stock runs short and delivery lead‑times become lengthy.

1. Multi‑PN Interchangeable Unit Specially Matched for Hitachi EX200‑2 Final DrivePart numbers 1013982, 3047447 and 2028213 can substitute one another during repair work. This carrier and sun gear assembly is tailor‑made to fit the inner structural layout of EX200‑2 travel gearbox and cannot adapt to other Hitachi excavator families. Strict dimensional replication maintains ideal gear meshing clearance, effectively prevents track shaking, harsh internal grinding noise and accelerated component wear post‑installation.
2. One‑Piece Forged Structure Improves Survivability Under Severe Site CircumstancesMany low‑cost aftermarket planetary carriers suffer spider cracking or sun gear tooth chipping under continuous operation on rocky ground. Our one‑body forging combined with complete heat‑treatment workflow remarkably elevates impact resistance. It sustains stable working performance amid long‑time non‑stop excavation and high‑frequency track movement.
3. Multi‑Layer Factory Quality Validation Lowers Unexpected Site Breakdown RisksEach finished assembly undergoes two independent validation sessions before leaving factory premises. Comprehensive dimension check validates all mating tolerances. Real‑world simulated heavy‑load test reproduces actual site stress to verify transmission reliability. Potential defective pieces are filtered out internally, helping repair workshops and site operators avoid unplanned equipment stand‑by losses.
4. Pocket‑Friendly Repair Option for Fleet Operators & Independent Service GaragesOriginal Hitachi planetary drive components carry high purchase costs alongside unstable supply cycles. This aftermarket assembly delivers performance and service life close to OEM standards at factory‑direct price points, helping enterprises operating multiple EX200‑2 machines cut down repeated maintenance expenditure.
5. Multiple Logistics Solutions for Worldwide Machinery Spare‑Part MerchantsIn‑stock items can be shipped out within 3 working days after payment confirmation. Air freight service caters to urgent emergency repair orders from remote construction locations. Consolidated sea cargo and full‑container options bring cost‑saving bulk procurement solutions for distributors covering Africa, Southeast Asia, Middle East and Latin America regions.

We focus more than 10 years on R&D and volume production for excavator final‑drive planetary components. Travel gearbox planetary assemblies belong to our core product portfolio. Our complete production chain covers alloy steel forging, precision gear machining, professional thermal treatment and finished‑product load simulation assessment. Dedicated test benches mimic real‑world quarry and construction‑site load conditions to continuously optimize component anti‑shock performance and long‑term service lifespan. Our planetary spare parts are exported across dozens of countries, maintaining solid long‑term partnerships with heavy‑machinery spare‑part dealers globally.