2011-2015 Peterbilt 388 11.9L 6 Cyl ISX 11.9 Cummins. 2008-2015 Peterbilt 388 14.9L 6 Cyl ISX 15.0 Cummins. Notes: Fuel Water Separator Filter -- Fleetguard : FS19729. WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
