EC781 OIL FILTER CAP AND FL2016 OIL FILTER FOR 2003-2007 6.0L 2008-2010 6.4L F250-F550 SUPER DUTY 1840754C91 3C3Z-6766-C

iFJF part No.: FJ-OF2016-CAP03-CK. Product Overview The EC781 Oil Filter Cap & FL2016 Filter Combo solves the most common oil change frustration on Ford 6.0L and 6.4L Powerstroke engines: the failure-prone plastic OEM oil filter cap. This combo pairs our CNC-machined EC781 billet aluminum cap (replaces 3C3Z-6766-CA / 1840754C91) with a high-quality FL2016 oil filter everything you need for an oil change that eliminates the plastic cap problem permanently. Key Features CNC Billet Aluminum Cap : 6061-T6 aluminum with anodized finish replaces the OEM plastic cap (3C3Z-6766-CA) that cracks, warps, and rounds off. Precision-machined 36mm hex for sure-grip socket engagement. FL2016 Oil Filter Included : High-capacity filter element rated for the 15-quart oil system of the 6.0L/6.4L Powerstroke. Synthetic-blend media for extended drain intervals. Leak-Proof Design : Flat-machined sealing surface and included Viton O-ring ensure a consistent seal that won't weep oil down the side of the filter housing. Direct Drop-In Replacement : Same thread pitch and height as OEM. Threads into the factory oil filter housing with zero modifications. Never Strip Again : The OEM plastic 36mm hex rounds off after a few oil changes especially when hot. Our billet aluminum hex won't round, strip, or deform. Compatibility Year Make Model Engine 2003-2007 Ford F-250/F-350/F-450/F-550 Super Duty 6.0L Powerstroke V8 2008-2010 Ford F-250/F-350/F-450/F-550 Super Duty 6.4L Powerstroke V8 2003-2005 Ford Excursion 6.0L Powerstroke V8 2003-2010 Ford E-350/E-450 Super Duty Van 6.0L Powerstroke V8 Specifications Specification Value Part Number FJ-OF2016-CAP03-CK Cap OE Cross Reference 3C3Z-6766-CA, 1840754C91, EC781 Filter OE Cross Reference FL2016, PF2016 Cap Material 6061-T6 Billet Aluminum, Anodized Socket Size 36mm Hex Oil Capacity (Engine) 15 Quarts (6.0L) / 15 Quarts (6.4L) Frequently Asked Questions Q: What's included in this combo? A: This combo includes one EC781 billet aluminum oil filter cap (anodized finish) and one FL2016 oil filter. Everything you need for an oil change with the OEM plastic cap upgrade. Q: Why replace the OEM plastic oil filter cap? A: The factory plastic oil filter cap on 6.0L and 6.4L Powerstroke engines is notorious for cracking, warping, and leaking especially after multiple heat cycles. The tab that engages the socket wrench rounds off, making filter removal extremely difficult. Our EC781 billet aluminum cap is a permanent solution. Q: Does this fit the 2003 Excursion with the 6.0L? A: Yes. This combo fits 2003-2005 Ford Excursion with the 6.0L Powerstroke, as well as 2003-2010 F-250 through F-550 Super Duty trucks with 6.0L or 6.4L engines. Also fits 2003-2010 E-Series vans with 6.0L. Q: What torque should I use on the cap? A: Hand-tighten the cap first, then torque to 18-22 ft-lbs using a 36mm socket. Do NOT overtighten the O-ring does the sealing, not the threads. Over-torquing can strip the aluminum housing threads ($800+ to replace the oil filter housing).