OMC Evinrude Johnson Transistor Housing O-Ring #391029 - Ignition Seal

The OMC Evinrude Johnson Transistor O-Ring 391029 is a genuine OEM rubber O-ring that seals the transistor housing to the engine block on select Evinrude and Johnson outboard motors.

• Part Number: 391029
• Manufacturer: Johnson/Evinrude/OMC/BRP
• Material: Rubber
• Color: Black
• Function: Creates a tight seal between the transistor housing and engine block; prevents leaks and ensures proper electrical conductivity
• Application: Select OMC Evinrude and Johnson engines with transistor ignition systems
• Type: OEM — genuine factory original equipment, not aftermarket

Always verify fitment using your engine model and serial number before ordering.