This is a Racetronix "Fuel Pump Wiring Harness HD for Double Pumper fuel pumps" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is used for the Racetronix G7X 510LPH QD E100 and the Racetronix G7X 725LPH QD E100.
