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Generac 5777 Maintenance Kit for Portable 389cc / 410cc Units - GP Series

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  • The Generac 5777 maintenance kit is designed for the GP5 through GP8, 389cc, & 420cc generators

  • Scheduled maintenance is a necessity to ensure the long life and top performance of your portable generator

  • If your generator has been running for extended periods or has been stored for several months, it's a good idea to change the oil and fill the tank with fresh gasoline

SKU: G5777

Availability: In stock

Some Manufacturers Require MOA

Your order will be processed within 24 - 48 hours

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Many products are shipped directly from the manufacturer. Drop-shipped items are subject to manufacturer availability.

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No Payment Until 2018



  • Tune-up kit keeps your generator running at optimum performance
  • Generac portable generator maintenance kit is designed for GP5 through GP8, 389cc & 420cc generators
  • Contents: 2 Piece Air Cleaner Element, Spark Plug, Fuel Stabilizer, and Chamois
  • Oil must be purchased separately


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