JOHN DEERE GATOR FD620 CARB REBUILD KIT Everything you need to rebuild carburetor MIA11386, MIA12362 or AM118872 Built to John Deere OEM Standards.- Kit Pictured is what you will receive. Shipped FAST & FREE by USPS Priority Mail Main Jet is size #112 Pilot Jet is size #58 Some variations of the FD620 engine may use different jet sizes.