Valve Coil Part 3036401 for Hyundai Excavator R2157 R2207 R2257 Short description Replacement valve coil designed to restore reliable solenoid operation in hydraulic control valves on compatible excavator models. Directfit part number 3036401 for Hyundai excavator models R2157, R2207, and R2257. Key benefits Restores hydraulic responsiveness: Replaces a worn or failed coil to recover consistent actuation of the valve spool and proper hydraulic flow control. Minimizes downtime: Straightforward swapin installation helps get equipment back into service quickly during field repairs or scheduled maintenance. Reliable operation under load: Built for heavy equipment use to maintain consistent electricaltomechanical conversion required by valve assemblies. Exact part compatibility: Supplied to match the fit and function required by excavator models R2157, R2207, and R2257, reducing the need for modification or adapters. What it does This valve coil converts electrical input into the magnetic force needed to move the valve core inside hydraulic control assemblies. Proper coil performance ensures valves open and close on command, maintaining smooth boom, arm, and bucket movements. Important attributes Part number: 3036401 Function: Solenoid coil for hydraulic control valve actuation Compatibility: Fits Hyundai excavator models R2157, R2207, R2257 Form factor: Designed for direct replacement to match original valve dimensions and mounting Performance: Engineered to deliver consistent magnetic force and repeatable cycling suitable for heavy equipment applications Installation and service notes a failed coil when you observe unreliable valve actuation, intermittent electrical continuity, or overheating at the valve solenoid. Verify electrical connector type and terminal orientation on your machine before installation. Inspect valve housing and armature for wear or contamination when replacing the coil to ensure longterm performance. Use scenarios Onsite : Technicians the coil in a field service call to restore a stuck or slow hydraulic function and the excavator to operation the same day. Preventive maintenance: Fleet maintenance teams swap coils during scheduled service intervals to prevent unexpected failures and maintain consistent machine performance. Rental equipment turnover: Refurbish control valves between rentals to ensure reliable operation for the next user. Why choose this part If your excavator R2157, R2207, or R2257 is showing signs of erratic valve behavior, part 3036401 provides a direct replacement option focused on restoring correct solenoid function and reducing service time. Its compatibility and form factor make it a practical choice for and maintenance tasks.