Engineered specifically for early 2003 and mid-2004 Ford F-250, F-350, F-450, F-550 Super Duty, Excursion, and 2004 E-Series Vans equipped with the 6.0L Powerstroke diesel engine (production build dates up to September 22, 2003, or early round-cooler configurations), the Genuine Ford Exhaust Gas Recirculation (EGR) Valve (4C3Z-9F452-B) provides a dependable replacement for carbon-fouled or electrically failed units. Over thousands of miles, heavy soot accumulation and exhaust condensation cause the internal valve pintle to stick, leading to an erratic rough idle, lack of low-end power, black or white smoke, and persistent diagnostic trouble codes (such as DTC P0401, P0403, or P0404).

As an authentic Ford original equipment part, the 4C3Z-9F452-B valve guarantees absolute compatibility with the factory Powertrain Control Module (PCM) control strategy, eliminating the calibration errors and premature solenoid failures often experienced with cheap aftermarket knockoff valves.

Key Features & Benefits

• 100% Genuine Ford OEM Component: Manufactured by Ford Motor Company to ensure exact electrical resistance, operating stroke, and long-term durability.
• Resolves Carbon Sticking: Restores smooth valve actuation to eliminate rough idle, hesitation, and engine stumbling.
• Clears Stubborn Diagnostic Codes: Effectively corrects EGR flow and circuit fault codes (P0401 through P0405) to pass emissions testing.
• Exact Factory Electrical Connector: Plugs directly into the factory wiring harness without requiring pin modifications or adapter extensions.
• Direct Drop-In Fitment: Precision-machined housing matches intake manifold bolt patterns and seal depths perfectly.

Technical Specifications

• Manufacturer Part Number / SKU: 4C3Z-9F452-B / 4C3Z9F452B (Ford Base Part # 9F452)
• Superseded / Interchanged Numbers: 3C3Z-9F452-AA, 3C3Z-9F452-AB, 4C3Z-9F452-BA
• Truck & Van Platform: Early 2003–2004 Ford Super Duty F-250, F-350, F-450, F-550, Excursion & 2004 E-Series Vans
• Engine Platform: 6.0L 32-Valve Powerstroke V8 Diesel / Navistar VT365 (Early Configuration)
• Core Requirement: None (Brand New Genuine Ford Part - No Core Return Required)
• Warranty: Ford Motor Company Factory Parts Warranty

Vehicle Fitment & Installation Notes

• Early 2003–2004 Ford F-250 / F-350 / F-450 / F-550 Super Duty – 6.0L Powerstroke Diesel (Built up to 09/22/2003)
• Early 2003–2004 Ford Excursion – 6.0L Powerstroke Diesel
• 2004 Ford E-350 / E-450 Super Duty Van – 6.0L Powerstroke Diesel
• Fits Model Years: Early 2003, 2004 (Engine build dates prior to September 22, 2003)
• Fitment Notice: Designed strictly for early 2003–2004 models utilizing the early EGR valve configuration. Does not fit late 2004.5–2007 trucks, which require part number 5C3Z-9F452-ARM or equivalent late-style valves. Always verify your truck's production build date and electrical plug style before ordering.
• Installation Tip: Clean all carbon buildup out of the intake manifold mounting bore thoroughly before dropping in the new valve. Always replace the EGR valve O-rings and seals (such as Alliant AP0005 or MAHLE GS33719) to prevent vacuum and exhaust leaks.