6 0 FLEETGUARD FS20121 Fuel / Water Separator for Cummins $399.99 USD (SURPLUS NEW) Fleet Guard FS20121 Fuel/ Water Separator, for sale!!!! Cummins Part #: 5528103;Filter Head P/N: A057A798 Stock #: FF1038 For more information about this listing, shipping,... ConditionNewFits To Make(s)CumminsPart Number5528103Stock NumberFF1038 MLS Number13854129CategoryFuel / Water Separators Last Updated10/2/2025 LocationHialeah, FL, US Sold ByJJ Rebuilders Inc. (844) 385-___ SHOWNUMBERCall Seller Email Seller Save More Info