Quick Overview This fits your . Make sure this fits by entering your model number. Function: Works for installation of Crankshaft Rear Seal Wear Ring for Ford 4.5L, 6.0L, 6.4L Powerstroke. Prevent your seal from leaking. Fitment: Fits for Ford 4.5L Diesel: Low Cab Forward: 2006-2009; 6.0L Diesel : E-Series : 2004-2010; 6.0L Diesel: F-650/750 Super Duty: 2004-2007; 6.0L Diesel: Excursion: 2004-2005; 6.0L Diesel: F-250/350/450/550 Super Duty: 2004-2007; 6.4L Diesel: F-250/350/450/550 Super Duty: 2008-2010 & VT365 International. Replacement: Replace ZTSE4515C ZTSE4515 303-770, saving your time and money. Superior Material: Crafted from high quality Aluminum, anti-rust, with great strength and durability for years of trouble-free use. 100% Satisfaction Guarantee: Yoursme aims to provide the best service for our customer, if you're not 100% satisfied with our item, simply return it for a full refund in 30 days, no questions asked money back guarantee with 12 months’ warranty.