Universal Ignition Switch Key Assembly 70382510 7038251043 703825104300 Replaces MP51040 This ignition switch key assembly provides reliable on/off and start/stop control for outboard motor control boxes. It is a directfit replacement for MP51040 and is designed for straightforward installation in compatible external machine control boxes. Key benefits Restores reliable engine ignition control: replaces worn or damaged switches so engines start and stop smoothly. Wide compatibility: fits models 70382510, 7038251043, 703825104300 and other external machine control boxes that accept the same assembly. Simple replacement and maintenance: directfit design reduces downtime and avoids complex wiring changes. Durable everyday use: built for repeated cycling and regular marine or outdoor equipment operation. What it does Provides the keyed ignition function used to power and control outboard motor systems. Replaces the original 70382510 series switch assembly and part number MP51040 for consistent performance. Maintains factorystyle operation and keyed security for equipment control. Key attributes Function: keyed ignition switch assembly for outboard motor control boxes. Compatibility: compatible with 70382510, 7038251043, 703825104300 and equivalent external machine control boxes. Fit: designed as a direct replacement to match existing mounting and electrical connections for supported models. Durability: constructed for regular use in marine and outdoor equipment environments. Typical applications a failed ignition switch on an outboard motor control box to restore starting and stopping capability. Stock as a spare part for marine maintenance and shops servicing boats and outboard systems. Use during routine equipment refurbishment or control box upgrades to ensure reliable keyed control. Notes Confirm model compatibility before installation by matching the part numbers 70382510, 7038251043, 703825104300 or MP51040. Installation should follow standard electrical safety practices and may require basic hand tools.