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Description
25 584 15-S MDI Module Kohler – Genuine OEM Replacement Ignition Control Part
The Kohler 25 584 15-S MDI Module is a genuine OEM replacement ignition control component designed for select Kohler small engines. The MDI (Magneto Digital Ignition) module is responsible for controlling spark timing and ignition performance, ensuring reliable starting, smooth operation, and consistent engine power.
This OEM ignition module is commonly replaced when engines experience no-spark conditions, misfires, or ignition system failures. Manufactured to Kohler factory specifications, it provides the correct fit, durability, and dependable outdoor power equipment performance.
Product Details
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Manufacturer Part Number: 25 584 15-S
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Brand: Kohler
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Part Type: MDI Ignition Module
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Application: Engine Ignition / Spark Control System
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OEM Status: Genuine Kohler OEM Replacement Part
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Condition: New
Function
The Kohler 25 584 15-S MDI Module is designed to:
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Control ignition timing and spark delivery
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Support smooth engine starting and operation
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Prevent misfires and ignition interruptions
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Replace faulty or damaged ignition modules
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Restore proper engine ignition performance
Compatibility
This OEM MDI ignition module fits select Kohler small engine models commonly used in:
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Riding lawn mowers
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Lawn tractors
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Zero-turn mowers
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Commercial outdoor power equipment
⚠️ Always verify your engine model and specification number before ordering to ensure correct fitment.
Installation / Usage
The MDI module installs as part of the engine ignition system and connects to the spark plug and wiring harness. Replacement is recommended if experiencing:
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Engine will not start (no spark)
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Intermittent ignition failure
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Engine misfiring or rough running
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Faulty ignition diagnostics
For best results:
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Inspect spark plug and wiring before replacement
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Follow Kohler service manual installation procedures
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Use only genuine Kohler OEM ignition components
Maintenance Tips
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Keep ignition connections clean and secure
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Replace worn spark plugs regularly
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Inspect wiring harness for damage or corrosion
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OEM modules ensure proper timing and long-term reliability
