For 03-07 6.0L Ford Powerstroke Diesel FA1778 Air Filter (3474) 4C3Z-9601-AA

Air Filter for Ford Powerstroke Diesel

This FA1778 air filter keeps dust and debris out of the 6.0L Powerstroke diesel engine, cross-referenced to 4C3Z-9601-AA for a direct replacement fit.

Overview

The FA1778 air filter is a drop-in replacement element built to protect the 6.0L Powerstroke diesel engine from airborne contaminants. It traps dust, dirt, and debris before they reach the intake, helping maintain airflow and combustion efficiency. This air filter for Ford Powerstroke owners is a straightforward maintenance part for trucks logging heavy miles.

Built For Performance

• Direct cross-reference to 4C3Z-9601-AA for confident fitment
• Pleated filtration media captures fine dust and debris
• Sealed perimeter keeps unfiltered air from bypassing the element
• Rugged construction holds up to vibration and engine heat
• Restores airflow when a clogged filter is replaced

Fits These Machines

• for Ford F-250 Super Duty 6.0L Powerstroke Diesel 2003-2007
• for Ford F-350 Super Duty 6.0L Powerstroke Diesel 2003-2007
• for Ford F-450 Super Duty 6.0L Powerstroke Diesel 2003-2007
• for Ford F-550 Super Duty 6.0L Powerstroke Diesel 2003-2007
• for Ford Excursion 6.0L Powerstroke Diesel 2003-2005

On-The-Job Use

• Routine intake maintenance on 6.0L Powerstroke diesel trucks
• Fleet service intervals on work trucks and tow rigs
• Replacement during filter changes on dusty job sites
• Restoring intake flow on high-mileage diesel engines

Specs At A Glance

Good To Know

Q: How often should this air filter be replaced? A: Most 6.0L Powerstroke owners replace the air filter every 15,000 to 30,000 miles, or sooner when driving in dusty conditions. Inspect the element at each oil change and replace it once debris is visible in the pleats.

Q: Is this an original Ford part? A: No, this is an aftermarket replacement air filter cross-referenced to 4C3Z-9601-AA. It is designed to fit the listed applications and is not manufactured by Ford.

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