Kobelco SK300LC Mark IV Excavator Parts List OEM

Get the exact part numbers and assembly diagrams you need for your Kobelco SK300LC Mark IV Excavator. This official OEM catalog covers serial numbers YCU0603, YCU0607, and subsequent builds (ASN YCU0611).

Whether you are rebuilding the swing motor or tracing a hydraulic line, accurate documentation prevents costly ordering mistakes. Instead of tying up a service bay while waiting for dealer parts confirmation, your mechanics can verify exact OEM fitment in minutes to speed up complex troubleshooting. The 437-page PDF ensures you get the right component the first time.

• OEM Filter References: Correctly identifies critical components like the YN50VU0001D5 engine oil filter and YN50VU0001D3 fuel filter.
• 130+ Exploded-View Diagrams: Detailed visual breakdowns of the undercarriage, electrical system, and cab installations.
• Complete System Breakdowns: Includes highly specific sub-component callouts for hydraulic line service and cabin installation hardware.
• Core Machine Assemblies: Travel reduction units, Cummins engine specifications, Hendrix bucket assemblies, pilot control valves, swivel valve installations, power take-off setups, and hydraulic pump units.
• Essential Technical Visuals: Electrical wiring diagrams, hydraulic routing views, component assembly drawings, instrument panel views, fastener conversion charts, and solenoid valve schematics.

Component Assembly Details

This manual breaks down the machine's complete physical structure, starting with a comprehensive filter list for routine maintenance. From there, it moves into detailed schematics of the upper frame, counterweight installations, and swing motor assemblies. You will find exact layouts for critical hydraulic components, including the main tanks and relief valves. To help you avoid expensive dealer labor rates, the manual even includes step-by-step visual instructions to safely remove and replace the counterweight.

The cabin interior section covers all configurations. It details seating groups, floor plate variants, control boxes, and the operator control lever assemblies. Boom, arm, and mass excavator attachment setups—including nibbler and breaker lines—are also fully mapped out to support heavy modifications or structural repairs.

Technical Specifications & Capacities

Beyond part numbers, the catalog includes essential operational limits and capacities for precise component matching. Key data points include a maximum hydraulic pressure threshold of 385 Kgf/cm², a swing motor hydraulic oil capacity of 4.5 gallons, and a 45-gallon fuel tank limit.

Because field repairs often require quick adaptability, the manual provides practical metric-to-inch hardware substitution guidelines to keep your project moving. You will also find exhaustive electrical system identifiers, mapping out a master repair kit containing 3,777 pieces for wiring harness maintenance.

Safety Note: This manual is intended for component identification and reference purposes. Always rely on certified technicians and follow proper shop protocols when performing heavy equipment service.