Grizzly GA33416 Injection Pressure Regulator (IPR) Valve – 2003-2004.5 Ford 6.0L Powerstroke

Restore precise fuel injection control and reliable performance on your early 6.0L Powerstroke with the Grizzly GA33416 IPR Valve. This direct-replacement Injection Pressure Regulator is a critical component of the high-pressure oil system (HEUI). It regulates oil pressure from the High-Pressure Oil Pump (HPOP) to the injectors, ensuring the correct pressure (typically 500+ psi minimum to fire, rising under load) for proper fuel delivery, timing, and combustion.

Why Replace Your IPR Valve?

A failing IPR valve is a common cause of drivability problems on 2003–2004.5 6.0L Powerstrokes. Symptoms often include:

• Hard starting or no-start (especially when hot)
• Rough or surging idle
• Engine stalling
• Loss of power or poor throttle response
• Related diagnostic codes (such as those involving injection control pressure)

The Grizzly GA33416 provides accurate, responsive pressure regulation to help eliminate these issues and return consistent performance.

Key Features & Benefits

• Direct-fit replacement – Installs without modifications for a straightforward swap
• Precision control of high-pressure oil for optimal injector operation, combustion efficiency, and restored power
• Built to meet or exceed OEM specifications for durability in demanding diesel applications
• Helps resolve common high-pressure oil system faults tied to the IPR

Fitment: 2003–2004.5 Ford 6.0L Powerstroke (early-style applications)

Warranty: 1 Year

Whether you’re addressing hard starts, rough running, or simply replacing a worn original, the Grizzly GA33416 delivers the reliable pressure control your 6.0L needs for dependable operation.