SPI CDI Modular Igniter Box Unit for John Deere Snow Replaces OEM# AM54840

SPI CDI Modular Igniter Box Unit for John Deere

This CDI modular igniter box unit replaces OEM part number AM54840 for John Deere Snow equipment, providing reliable ignition timing for consistent starting and operation.

Overview

The SPI CDI Modular Igniter Box Unit for John Deere Snow is a direct electronic replacement for OEM# AM54840. It controls ignition spark timing to ensure efficient engine performance. Designed for John Deere Snow applications, this module restores lost ignition function.

Built For Performance

• Direct replacement for OEM part AM54840
• Modular design for easy plug-and-play installation
• Reliable solid-state ignition circuitry
• Durable housing resists vibration and weather
• Restores consistent spark timing

Specs At A Glance

Good To Know

Q: Will this CDI work on other John Deere models? A: It is designed specifically for John Deere Snow equipment; verify compatibility with your model and serial number before ordering.

Q: What symptoms indicate a bad CDI module? A: No spark, intermittent spark, or hard starting often point to a failing CDI igniter box.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.