The FIRMAN Performance Maintenance Kit keeps your FIRMAN 389cc and 439cc series generators running at peak performance. Designed to extend the life of your generator, this all-in-one kit includes the essential components for routine maintenance and long-term reliability.

What’s Included:

• Spark Plug – Ensures smooth starts and consistent engine performance
• Spark Arrestor – Enhances safety by reducing exhaust sparks
• Air Foam Element – Protects the engine from dirt and debris
• 0.5 oz Fuel Stabilizer – Preserves fuel quality for longer storage periods
• Shop Towel – For quick and easy cleanup during maintenance

Whether you’re preparing for storm season, backup power, or regular operation, the FIRMAN 389cc/439cc Performance Maintenance Kit helps keep your generator ready for anything.