Kobelco SK120 Mark III and SK120 Mark III 1990–1996 Excavator Parts Manual

• Covers 1990–1996 Kobelco SK120 Mark III models, specifically starting with the LP05201 serial number architecture
• Includes 491 pages of precise exploded-view diagrams and corresponding factory part number tables
• Serves as the definitive reference for European, Export, and Extreme Heat model variants
• Highlights precise exploded views for the Isuzu engine, Diesel Kiki injection pumps, Nikko starters, Nikko generators, swing motors, propelling motors, and swivel joints
• Maps out electrical wiring diagrams, control valves, pilot valves, main relief valves, gear pumps, boom cylinders, arm cylinders, and bucket cylinders

Parts Documentation Scope

Time is money in the shop. This 1990–1996 Kobelco SK120 Mark III parts guide helps you identify exactly what you need without second-guessing. While parts catalogs do not contain written procedures, the high-resolution exploded views act as a visual step-by-step disassembly and reassembly guide for complex units like the swing motor reduction gears and the fuel injection pump. This saves you from outsourcing these major overhauls to an expensive external workshop. Referencing this PDF provides a clear look at how components fit together. The manual breaks down the upper frame, cooling system, and fuel system, along with undercarriage elements like track springs, idlers, and rollers, using clear, detailed schematics. You will find complete component assemblies for the cabin, seating, and protective guards. Every diagram connects structural parts, hoses, and filters directly to their exact OEM part numbers, which speeds up your inventory checks and ordering process for any upcoming repair. The guide also clearly separates components specific to North European versus standard export configurations.

Technical Data Preview

Getting the right parts requires knowing your exact machine specifications. This manual outlines the power plant assembly for the 5.1L engine and maps out the cooling capacity for the -20°C to +50°C operating range. Beyond basic specs, having the factory structural layout is critical for accurate troubleshooting and executing a successful repair. You get detailed references for the hydraulic relief valves and filters, along with the 24V electrical baseline and 3.5 km/h track speed limit. Bucket capacity is confirmed at 0.45 M³ for standard models. Working on heavy machinery carries inherent risks, so always verify your part numbers and consult a certified technician before tearing into the hydraulic or electrical systems.