Kobelco SK200-8 Travel Gearbox 1st Planetary Carrier Spider With Sun Gear Assy

This integrated first-stage planetary carrier spider paired with sun gear serves as the core power distribution assembly installed inside the travel reduction gearbox of Kobelco SK200-8 crawler excavators. Continuously bearing alternating heavy impact loads during crawler traveling, this assembly delivers stable power transmission for heavy-duty operations including quarry mining, bulk earthmoving and infrastructure foundation construction.
All manufacturing processes strictly comply with original Kobelco OEM dimensional specifications and precision tolerances. Gear modulus, spline parameters and assembly mounting dimensions fully match two cross-referenced part numbers: YN53D00004S006, YN53D00004S009. No cutting, grinding or welding modification is required during on-site installation, effectively cutting maintenance labor expenses and eliminating long construction downtime caused by hard-to-source genuine planetary drive assemblies.

1. Dual Cross-Referenced OEM Part Numbers, Exclusive Fit for Kobelco SK200-8

   YN53D00004S006 and YN53D00004S009 share identical dimensional parameters and are mutually interchangeable. This assembly is tailor-made only for SK200-8 travel gearbox and cannot be matched with other Kobelco excavator models. All geometric sizes fully replicate original OEM components, avoiding assembly offset, abnormal walking vibration and accelerated gear wear after replacement.

2. Reinforced Forged Structure for Continuous Heavy Load Operation

   Low-grade ordinary planetary carriers are prone to spider cracking and gear tooth breakage under long-time rough terrain travel. Our product adopts integrated precision forging and whole-piece heat treatment technology, effectively resisting shock loads from rocky working surfaces and extending service life under round-the-clock heavy-duty excavation work.

3. Independent Dual Pre-Delivery Inspection to Eliminate Hidden Defects

   Every finished assembly undergoes two separate testing procedures before leaving the factory. Dimension calibration verifies all fitting parameters; simulated travel fatigue test replicates long-distance walking on quarry sites to check transmission stability. All defective products are filtered out before warehousing to prevent unexpected equipment shutdown losses for contractors and mining operators.

4. High Cost Performance for Excavator Fleets & Repair Yards

   Genuine Kobelco planetary drive spare parts carry high purchase prices and unstable supply cycles. This aftermarket assembly provides equivalent structural load capacity and full service cycle consistent with original parts at competitive factory price, greatly lowering recurring maintenance costs for machinery repair shops and equipment leasing enterprises with fleets of SK200-8 machines.

5. Flexible Global Logistics Solutions for Worldwide Clients

   All stocked products can be dispatched within 3 working days after payment confirmation. Air freight supports emergency urgent orders for sudden gearbox failures at remote construction sites. Consolidated bulk sea freight and full container transport provide cost-effective wholesale delivery solutions for machinery spare parts distributors serving Africa, Southeast Asia, Middle East and Latin American markets.

Our factory owns over 10 years of specialized R&D and mass production experience in excavator final drive planetary components, with Kobelco series travel gearbox parts as mature core production lines. We operate a complete closed-loop production workflow including alloy steel forging, precision gear machining, integral heat treatment and finished product load simulation testing. Professional heavy-load test benches replicate harsh quarry and foundation working environments to continuously optimize component shock resistance and long-term wear durability. Our planetary gear spare parts are exported to dozens of countries year-round, maintaining stable long-term cooperative partnerships and consistent positive feedback from global heavy machinery spare parts distributors.

A1: Cross-model installation is not supported. Different Kobelco excavators adopt travel gearboxes with exclusive non-interchangeable structural dimensions. Please double-check your complete machine model and OEM part number before placing orders.

A2: Suitable for repairing travel motor failures caused by cracked carrier spider, severely worn sun gear, excavator walking shaking, gearbox abnormal noise and insufficient travelling power.

A3: Yes. Orders for large quantity purchases enjoy progressive bulk purchase discounts. Consolidated full-container sea shipping service can also be arranged to reduce overall international logistics expenses for large-batch procurement.

A4: All metal surfaces are evenly coated with thick anti-rust grease. The whole assembly is wrapped with multi-layer heavy waterproof PE film and fixed inside reinforced thick plywood export crates to avoid scratches, impact deformation and moisture corrosion during long cross-ocean transit.