This direct-fit fuel pump module drops into any 1983-1997 Ford Mustang EFI fuel tank, built around a 525 LPH Holley fuel pump rated to support up to 1200 EFI or 1450 carbureted horsepower (60 PSI at 13.5V / 17A draw). The flange uses a 6AN o-ring outlet and return port for easy plumbing, and the kit includes the hanger assembly, fuel pump inlet filter, flange o-ring, and tank lock ring/gasket needed for a complete stock-tank installation.
Specifications:
- Application: 1983-1997 Ford Mustang
- Fuel Type: Gasoline/E85 Compatible
- Material: 6061-T6 Aluminum, bright dip black anodized flange
- Maximum Flow Rating: 525 LPH
- Inlet/Outlet: One each, -6AN o-ring
- Sub Category: Fuel Pumps and Related Components
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 12-347
Requires a bypass-style fuel pressure regulator, such as Holley 12-886 (EFI) or 12-887 (carbureted).
FAQ
What horsepower will this fuel pump module support?
Up to 1200 EFI horsepower or 1450 carbureted horsepower at 60 PSI and 13.5 volts.
What years and vehicles does 12-347 fit?
1983-1997 Ford Mustang EFI fuel tanks, direct fit.
Do I need a separate fuel pressure regulator?
Yes, a bypass-style regulator such as Holley 12-886 (EFI) or 12-887 (carbureted) is required.
What is included in the kit?
The hanger assembly, fuel pump inlet filter, flange o-ring, and tank lock ring/gasket for a complete stock-tank install.

