Two new electric fuel pumps, part number 173891 or 170427. These fit:
Ferrari 550 series (Maranello & Barcheta) 1996 - 2000
Ferrari 456M 1998 - 2001
Ferrari 456M GT 1992 - 1997
Inline Fuel Pump 12v Electric Transfer Low Pressure Gas Diesel Fuel Pump HEP-02A
$12.29
12V Universal 2.5-4PSI Gas Diesel Inline Low Pressure Electric Fuel Pump HEP-02A
$13.59
KEMSO 340LPH High Performance Fuel Pump "Replace Walbro 255LPH GSS342" #14
$39.98