Heavy Duty Direct Fit OE Replacement Reliable Operation Ford Motor Company Equivalent Part# 4R3Z-7A508-AA Fits 2005-2017 GT, 2008-2009 Bullitt, 2005-2012 V6 and 2007-2009 GT500 Restores Firm Positive Shifts. Improve the shifting power of your manual Mustang by replacing your old worn out factory Hydraulic Slave Cylinder with a brand new direct fit replacement from McLeod Racing for firm positive shifts. Direct Fit OE Replacement. Featuring a factory style wire-clip connector, this replacement Hydraulic Slave Cylinder by McLeod Racing is made to the original factory specifications with premium quality rubber components for compatibility with all DOT 3 & 4 brake fluids. This McLeod Racing Hydraulic Slave Cylinder is a direct fit replacement for the 2005-2017 GT, 2008-2009 Bullitt, 2005-2012 V6 and 2007-2009 Shelby GT500 Mustangs with a factory clutch installed. Equivalent to Ford part# 4R3Z-7A508-AA