Hitachi ZX200 Travel Gearbox 3rd Planetary Carrier Spider With Sun Gear Assy for Excavator Parts 1025875 3082156 3084353

This third‑stage planetary carrier spider pre‑assembled with sun gear, OEM part numbers 1025875, 3082156, 3084353, acts as the final torque‑output reduction component inside the travel final drive for Hitachi ZX200 excavator. Bearing the largest torque load within multi‑stage travel reducer, this assembly delivers amplified driving torque for crawler travel, steep‑slope climbing and heavy‑load relocation under earth‑moving, foundation‑digging and quarry‑site working conditions. It is a core replacement component for final‑drive overhaul projects, widely stocked by overseas spare‑part traders, field service garages and equipment‑rental enterprises.

Subjected to continuous low‑speed heavy‑torque load, impact shock and lubricant contamination, the 3rd‑stage carrier and matching sun gear are prone to tooth surface pitting, spider body deformation, spline abrasion and enlarged gear backlash. Typical failure performances include insufficient travel torque, poor uphill travelling performance, persistent metallic grinding noise inside travel gearbox, unilateral track lagging and final‑drive housing overheating. Once gear teeth crack or chip, metal debris will pollute gear oil and damage adjacent planetary parts, eventually triggering travel system lock‑up and costly project downtime.

Our aftermarket carrier spider and sun gear assembly strictly follows OEM dimensional standards for spline profile, gear tooth parameter, mounting hole layout and assembly backlash. No welding, cutting or extra adapter modification is required for on‑site replacement, direct drop‑in fit effectively cuts machine idle hours. As a practical cost‑saving substitute for high‑priced original assemblies with long procurement lead‑time, this unit provides reliable heavy‑torque bearing capacity, satisfying bulk‑purchase demands for global construction machinery spare‑part suppliers.

1. High‑precision dimension matching for Hitachi ZX200 travel final‑drive reducer Produced referring to original component drawing data, this assembly keeps consistent spline specification, gear tooth quantity and mounting hole spacing. Pre‑calibrated meshing backlash reduces internal abrasion and vibration noise inside travel gearbox, no secondary machining work is needed during field installation.
2. Optimized gear heat‑treatment craft for heavy‑torque working condition Many low‑cost replacement carriers suffer tooth chipping and rapid wear under heavy climbing and overload impact. Our key gear components adopt mature carburizing quenching process, balancing surface hardness and core toughness. It improves service life under sustained heavy‑torque operation and lowers parts‑replacement frequency for excavator fleets.
3. Complete finished‑goods inspection before delivery to avoid hidden transmission risks Every finished carrier assembly goes through gear‑meshing test, backlash measurement and appearance inspection before packing. Defective workpieces are screened out inside factory, reducing re‑assembly labor burden for maintenance technicians and preventing unexpected jobsite breakdown losses.
4. Budget‑friendly aftermarket solution for final‑drive overhaul cost control Genuine OEM planetary carrier assemblies come with high purchase cost and lengthy delivery cycle. Our factory‑direct‑supply aftermarket assembly delivers dependable comprehensive performance at competitive wholesale price, helping operators cut overall maintenance expenditure for medium‑tonnage excavator fleets.
5. Diversified logistics solutions for global wholesale customers In‑stock products can be dispatched rapidly upon payment confirmation. Air freight supports urgent breakdown repair orders; consolidated sea freight and full‑container service offer cost‑saving options for long‑term bulk importers.

Our manufacturing workshop concentrates on producing aftermarket final‑drive spare parts including planetary carrier assemblies, sun gears, planet gears and ring gears for mainstream excavator brands. We own complete production workflows: alloy steel forging, gear hobbing, professional heat‑treatment, tooth‑surface grinding and finished‑product inspection. Professional simulation equipment reproduces real‑site low‑speed heavy‑torque impact load to verify component reliability. Our travel‑gearbox spare‑parts are exported to multiple overseas markets and maintain long‑term stable cooperation with global construction‑machinery spare‑part distributors.

Q1: Can this 1025875 third‑stage planetary carrier assembly fit other Hitachi excavator models besides ZX200? A1: Cross‑model installation is not recommended. Different travel gearbox versions adopt different gear parameters and carrier dimensions. Please double‑check machine model and OEM part number before placing orders.

Q2: What travel‑system faults can this assembly resolve? A2: It fixes malfunctions caused by worn, cracked or deformed third‑stage carrier and sun gear: insufficient travel driving force, bad climbing performance, abnormal grinding or rattling noise of travel gearbox, inconsistent track speed and final‑drive overheating.

Q3: Is volume‑based discount available for bulk‑quantity orders? A3: Yes, tier‑based preferential price is offered according to purchase quantity. We can arrange full‑container sea shipment to reduce total logistics expense.

Q4: What packaging is applied for long‑distance overseas transportation? A4: Anti‑rust oil is coated on all gear surfaces. Components are wrapped with waterproof shock‑proof PE film, then secured inside reinforced export‑grade plywood case, preventing collision deformation and moisture corrosion during long‑haul transit.