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GM 6.6L Duramax LML/L5P Wrinkle Black HD High Output Alternator 2011-2019 | XDP XD350

Ships from warehouse - normally within 24 hours (Mon.-Fri.)

XDP Wrinkle Black HD High Ouput Alternator XD350 is an excellent upgrade to the charging system in your 2011-2019 GM 6.6L Duramax. The output is significantly higher than the stock alternator enabling you to keep up with the needs of aftermarket electronic upgrades and additions.


  • Bolt-On Upgrade
  • 245 Amp Peak Output
  • 150 Amp Output at Idle
  • OEM Style Decoupler Pulley
  • Ready for Installation


  • GM Duramax 6.6L LML / L5P
Prop65 Warning:
WARNING: Cancer and Reproductive Harm -
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit. All products that are in question of Warranty must be returned shipping prepaid to Bostech in which will handle submitting the warranty to XDP. All warranty returns must be accompanied by a dated proof of purchase receipt and a Return Authorized number (RMA number) given by our Customer Service team member. Warranty is limited to the original purchaser.