COGENG provides high-quality aftermarket and OEM-equivalent switches specifically engineered for Kobelco construction machinery, including excavators, crawler cranes, and wheel loaders. Their Kobelco switch range focuses on two essential categories:
OEM Pressure Switches – Designed to monitor hydraulic, pilot, accumulator, engine oil, or air conditioning refrigerant pressure. These switches activate or deactivate circuits at preset pressure thresholds, providing critical functions such as:
Hydraulic overload protection
Pilot pressure confirmation for boom/arm/travel control
Engine low-oil-pressure warning
A/C compressor clutch control
Common types include normally open (NO) and normally closed (NC) configurations, with thread sizes such as PT 1/8, PT 1/4, or metric M10×1.0 to match original Kobelco specifications.
OEM Limit Switches – Used for position sensing on moving components such as boom angle, swing parking brake, travel pedal neutral, and attachment coupler lock. These switches enhance safety and operational logic by sending signals to the machine's controller (Kobelco SK‑II, SK‑III, or SK‑IV series ECM). Typical applications include:
Boom height limit for overhead obstacle avoidance
Swing parking brake engagement detection
Auto-deceleration pedal position
Attachment changeover confirmation
All COGENG Kobelco switches are manufactured to meet or exceed original OEM standards, featuring:
Direct plug-and-play fitment with genuine Kobelco connectors and thread forms
High sealing protection (IP65, IP67, or IP68) against dust, water jet, and temporary immersion
Wide temperature tolerance (-40°C to +120°C) for extreme job sites
Vibration and shock resistance to JIS or ISO construction equipment standards
These switches are ideal for servicing popular Kobelco models including SK series excavators (SK60, SK75, SK130, SK200, SK210, SK250, SK300, SK350, SK480, SK850) and CK series crawler cranes. They serve as direct replacements for original Kobelco part numbers and are widely used by heavy equipment repair shops, fleet maintenance teams, and parts distributors.
