John Deere Rotary Ignition Switch — GY20074

Overview

• Manufacturer: John Deere
• Part type: Rotary ignition switch (replacement)
• Function: Provides engine start/stop control and ignition circuit signaling for compatible John Deere equipment
• Use case: Replaces worn or damaged ignition switches in machines that require the GY20074 form factor

Key Features

• Part Number: GY20074
• Type of machine suitable for: John Deere equipment that utilizes a rotary ignition switch with a standard wiring harness
• Installation tips:
  • Disconnect battery before replacement
  • Ensure ignition is in OFF position prior to removal
  • Securely connect the wiring harness and verify proper seating
  • Test start and key-off functions after installation; consult the machine’s service manual for any model-specific torque or alignment notes

Compatibility

• Suitable machine models: Not specified in provided data; compatible with John Deere equipment that uses part GY20074
• Alternative part numbers: Not listed