Turbo Impeller. Made by Schwitzer, p/n L157149. Also 157149. NSN 2930-00-423-3892. Fits turbocharger used on M88 and M60. SPECS: ABMZ Diameter 4.795 inches minimum and 4.805 inches maximum ABTJ Mounting Hole Quantity 5 AJLB Blade Quantity 14 AYAY Attachment Method Bolt hole 14968 L2A8