The Mean Green High Output Alternator is the answer to all of your charging problems. The Mean Green Alternator's tool steel rotor shaft is supported at both ends by heavy duty double sealed bearings. Even the heavy duty solid copper starter windings are sealed with high temperature insulation. Another is the heat resistant multi-function integrated regulator which continues to operate even at extreme temperatures. The Mean Green Alternator's tool steel rotor shaft is supported at both ends by heavy duty double sealed bearings. Even the heavy duty solid copper starter windings are sealed with high temperature insulation. Another is the heat resistant multi-function integrated regulator which continues to operate even at extreme temperatures. This Mean Green Alternator will fit your 2003-2008 Ford 6.0L Diesel.