X AUTOHAUX Fuel Injection Pressure Regulator for Ford F-150/F-250 1993-1999 — Direct-Fit OE Replacement, Reinforced Body

The X AUTOHAUX fuel injection pressure regulator is a direct-fit replacement that restores stable fuel pressure for compatible Ford trucks from the 1993–1999 model years.

If your Ford F-150, F-250, F-350 or Super Duty is experiencing inconsistent fuel delivery, rough idle, or difficulty maintaining proper fuel pressure, the regulator on the fuel rail could be the cause. This aftermarket unit replaces OE numbers F4SZ9C968A and F4TZ9C968B and is designed to fit a wide range of Ford models including F-150 (1994–1999), F-250 (1993–1999), F-350 (1993–1997), and Super Duty variants (1994–1997, 1999–2001).

Will this regulator fit my Ford truck?

This part is made to match the mounting points and ports of the listed OE references, so it’s compatible with many Ford trucks from the mid‑1990s. Confirm fitment by checking your vehicle’s year, model, and the OE part number currently installed.

• OE cross-references: F4SZ9C968A, F4TZ9C968B
• Fitment: F-150 1994–1999; F-250 1993–1999; F-350 1993–1997
• Also fits select Ford Super Duty models 1994–1997 and 1999–2001

How does this regulator affect engine performance?

The pressure regulator controls fuel rail pressure so the injectors deliver the correct amount of fuel. A stable regulator helps the engine run smoothly, improves throttle response and can reduce symptoms like rough idle or fuel smell from the engine bay.

• Maintains consistent fuel pressure for accurate injector metering
• Helps reduce surging, hesitation, and uneven idling
• Prevents over‑fueling that can foul plugs or increase emissions

What are the key construction and durability features?

Built from reinforced materials, this replacement regulator resists wear and deformation to extend service life under typical driving conditions. The design mirrors OEM specifications for a reliable fit and long-term operation when properly installed.

• Reinforced body for improved wear resistance
• Precision-molded ports and mounting points for direct fit
• Corrosion-resistant surfaces to handle fuel system exposure

Can I install it myself, or should I use a professional?

Replacing a fuel injection pressure regulator involves working with the fuel rail and pressurized fuel lines, so professional installation is recommended unless you have experience with fuel systems. Proper installation avoids leaks and ensures the regulator performs correctly.

• Located at the end of the fuel rail, connected to the injectors
• Requires depressurizing the fuel system and safe handling of fuel
• One regulator included per package for a single replacement

Who is this for: This X AUTOHAUX regulator is intended for owners and technicians restoring or maintaining mid‑1990s Ford trucks who need a reliable, OE-referenced replacement part. It’s suitable for fleet maintenance, DIY mechanics comfortable with fuel system work, and anyone troubleshooting fuel pressure-related drivability issues on the supported Ford models.