2014+ Ram 5.7L and 6.4L HEMI Dual Alternator to Single Alternator

Technical Support Subject 2014+ Ram 5.7L and 6.4L HEMI Dual Alternator to Single Alternator Document Version Department Revision Details Revised by Tech Engineering Implemented EXT-VR-145 D Tech Model Year update BDJ N/A CM 16 Nov 2020 Page 1 of 1 Knowledge Base: kb.vmacair.com Email: tech@vmacair.com Web: www.vmacair.com Technical Support: 1(888)241-2289 Toll Free:1(800)738-8622 Fax: 1(877)740-3202 System or Parts affected UNDERHOODTM 70 (V900118) UNDERHOODTM 70 (V900119) 5.7L Hemi Gas 2014-2018 2500 – 3500 Pick Up 5.7L Hemi Gas 2014-2018 6.4L Hemi Gas 6.4L Hemi Gas 3500 – 5500 Chassis Cab UNDERHOODTM 70 (V900128) 6.4L Hemi Gas 2019+ 2500-3500 Pick Up 2019+ 3500-5500 Chassis Cab Overview Background: The UNDERHOODTM systems listed above are not compatible with the specified dual alternator equipped vehicles unless the vehicle is converted to a single alternator system. Resolution: • The vehicle needs to be taken to a Ram dealer prior to removing the secondary alternator. Ram technicians will utilize the WiTech service tool to re-program the truck’s factory firmware to disable the second alternator. This eliminates the need to jumper or splice any wires. • Remove secondary alternator and belt. Note: Please see Ram Body Builder Notice prior to comencing any conversion on the 6.4L Gas Engine. https://www.ramtrucks.com/assets/bbg/pdf/2016/docs/ram/ramdad.pdf