The Ford W301222 Fuel Injector Connector Retainer Clip is a genuine Motorcraft/Ford OEM replacement spring-steel wire bail engineered specifically for 2003–2010 Ford Super Duty trucks, Excursions, and E-Series vans equipped with the 6.0L Powerstroke diesel engine (as well as Navistar VT365 applications). Snapping directly into the perimeter detents of each fuel injector electrical connector plug on the FICM wiring harness, this factory wire bail provides positive mechanical retention against extreme engine vibration and rocker cover heat, preventing 48-volt terminal separation and intermittent cylinder misfires.

Quick Specs & Kit Inclusions

• Application: FICM wiring harness fuel injector connector wire retention bail / locking clip
• Material Construction: Heat-treated, corrosion-resistant spring steel engineered to maintain tension through thousands of engine thermal cycles
• Quantity Note: Sold individually (each fuel injector requires one [1] clip; complete engine service requires eight [8] clips total)
• Emissions Status: 50-state legal (direct OE replacement fastening component)
• Direct Interchange Part Numbers: Ford W301222, W-301222, Navistar 1842858C1
• What's in the Box: (1) Genuine Ford W301222 Fuel Injector Connector Wire Retainer Clip

Problem Solved: Curing Broken Wire Bails, Intermittent Misfires & Spurious DTCs

During routine 6.0L maintenance—such as injector replacement, high-pressure oil rail nipple cup resealing, glow plug service, or valve cover gasket replacement—the factory injector wire clips are frequently bent, over-stretched, or dropped into the dark crevices of the rocker carrier. Reinstalling a FICM connector without its steel retention clip or using a distorted clip allows the plug to vibrate loose during engine operation. Even slight backing-out of the plug terminal pins creates high electrical resistance across the 48-volt circuit, throwing open-circuit trouble codes (DTCs P0261 through P0284), causing random cylinder dropping, and triggering severe engine misfires under load. The genuine Ford W301222 restores factory-spec retention tension to lock the harness firmly in place.

Fitment

• 2003–2007 Ford F-250 Super Duty 6.0L Powerstroke Turbo Diesel
• 2003–2007 Ford F-350 Super Duty 6.0L Powerstroke Turbo Diesel
• 2003–2007 Ford F-450 Super Duty 6.0L Powerstroke Turbo Diesel
• 2003–2007 Ford F-550 Super Duty 6.0L Powerstroke Turbo Diesel
• 2003–2005 Ford Excursion 6.0L Powerstroke Turbo Diesel
• 2004–2010 Ford E-Series Vans (E-350 / E-450) 6.0L Powerstroke Turbo Diesel
• 2004–2008 Ford F-650 / F-750 Super Duty (VT365 Engine)
• 2003–2007 International / Navistar VT365 & MaxxForce 5 Engines

Power Cutoff & Area Cleaning: Turn off the ignition and disconnect both negative battery cables. Blow away all loose dirt and debris from around the rocker box pass-through ports using compressed air before releasing electrical connections. Damaged Clip Removal: If a bent or damaged clip remains on the connector housing, use a small pick or needle-nose pliers to gently lift the retaining ears over the plastic housing guides and slide it off. Clip Positioning: Align the legs of the new Ford W301222 spring-steel clip into the molded exterior guide channels on the sides of the FICM harness injector connector body. Snapping Into Rest Position: Slide the clip downward until the side retention loops snap cleanly into the pre-engagement detent grooves. Verify both wire legs sit flat and parallel across the connector body. Connector Terminal Seating: Align the wiring harness connector squarely with the target fuel injector electrical receptacle on the rocker carrier. Push the connector straight and firmly onto the injector terminal until the spring clip drops over the injector locking ridges with an audible, mechanical click. Positive Lock Verification: Gently tug backward on the connector housing (not the wires) to confirm the steel bail is securely engaged and the plug cannot back out under vibration. Diagnostic Check: Reconnect the battery cables. Run an on-demand injector buzz test using a scan tool to verify uninterrupted 48V continuity and crisp coil actuation across all cylinders.