For 99-03 Ford 7.3L Powerstroke Diesel Fuel Relief Pressure Spring & Seal Kits

Fuel Relief Pressure Spring and Seal Kit for Ford

This fuel relief pressure spring and seal kit for Ford restores proper fuel pressure regulation in 7.3L Powerstroke diesel engines.

Overview

This heavy-duty fuel relief pressure spring and seal kit for Ford helps maintain optimal fuel system pressure to prevent engine performance drops. Over time, weak factory springs cause pressure loss, making this fuel relief pressure spring and seal kit for Ford essential for maintaining proper fuel delivery. It contains all necessary components to rebuild the pressure regulator housing reliably.

Built For Performance

• High-tension steel spring calibrated to match factory pressure specs
• Premium viton seals resist degradation from diesel fuel
• Precision-machined hardware ensures a leak-free seal
• Restores consistent fuel atomization for cleaner combustion

Fits These Machines

• for Ford F-250 7.3L Powerstroke 1999 to 2003
• for Ford F-350 7.3L Powerstroke 1999 to 2003
• for Ford Excursion 7.3L Powerstroke 2000 to 2003

On-The-Job Use

• Used during diesel fuel system servicing to rebuild the fuel bowl regulator
• Installed to resolve low fuel pressure symptoms like rough idling and hard starts
• Applied during routine high-mileage engine maintenance to maintain optimal fuel delivery

Specs At A Glance

Good To Know

Q: Does low fuel pressure cause hard cold starts on these engines? A: Yes, weak fuel pressure prevents correct injector atomization, which is why a fresh regulator spring kit often remedies hard starting issues.

Q: Are instructions included for setting the target PSI? A: This kit is pre-calibrated to factory specifications, so installing the spring returns the system to its standard operational pressure.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.