Wrinkle Black HD High Output Alternator 2011-2019 GM 6.6L Duramax XD350 XDP All XDP HD alternators are

All XDP HD alternators are pre-tested and include a test card with a readout of the alternator's output

snow plows

each fuel injector is tested for injection timing measurements

and all the other components in your belt drive system

Wrinkle Black HD High Output Alternator 2011-2019 GM 6.6L Duramax XD350 XDP All XDP HD alternators areEnhance the charging system in your 2011 2019 GM 6. 6L Duramax with the XDP Wrinkle Black HD High Output Alternator XD350. While many Duramax owners upgrade their truck for performance, the charging system is often overlooked until there is an issue. Aftermarket accessories such as off road lights, aftermarket horn kits, on board air compressors, snowplows, stereo equipment and other electronics will overload your factory charging system and demand