Applicable: Compatible with Ford 1997 - 2002 4.6L Windsor V8 Econoline and F-Series Truck; 1997 - 2002 5.4L V8 Econoline Expedition and F-Series Truck; 1997 - 2002 6.8L V10 Econoline and 1998 - 2002 5.4L V8 Lincoln Navigator-r. Application: Compatible with Ford 1997 - 2002 4.6L Windsor V8 Econoline and F-Series Truck;1997 - 2002 5.4L V8 Econoline Expedition and F-Series Truck; 1997 - 2002 6.8L V10 Econoline and 1998 - 2002 5.4L V8 Lincoln Navigator-r OEM Equivalent Part Number: 6477, 303-557, T96T-6256-B Function: Holds the cams ensure camshaft alignment when replace timing chain, and easy to install on the cam OEM Standard: Our Camshaft holding tool as same as OEM, accurate and professinal manufact, material is high quality steel, high hardness and strong, the exterior is coated with black antioxidant layer to anti-rust , would hold up for years of use 12 Months Warranty: We offer 12 months warranty, we will refund or replace, if the camshaft hold tool have any quality problem