Products Showing Parts for — {{ }}

No Results Showing Parts for — {{ }}
USD 539.95
Part #: XD350

XDP Wrinkle Black HD High Output Alternator XD350

2011-2019 GM 6.6L Duramax
Part #: XD350
★★★★★ ★★★★★ 1 Reviews
Our Recommendations Compatible Products
Scroll to View More


Enhance 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 more than what the factory alternator can provide. 

The XDP HD Series High Output Alternator increases the output of your factory charging system giving you the ability to reliably run your high-draw electronics while alleviating the strain on your charging system. The XD350 features an OE style decoupler pulley that helps synchronize the serpentine belt to improve efficiency, while also reducing the noise/vibration/harshness (NVH) and increasing accessory drive component life. Each XDP HD Alternator comes with an ultra-durable wrinkle black coating and is pre-tested for an easy bolt-on installation.  

  • 245 Amp Output
  • Bolt-On Upgrade
  • OEM Style Decoupler Pulley
  • 100% Brand New, No Core! 
Application Note:
This alternator fits on trucks equipped with dual and single alternator applications.
In dual alternator applications, this alternator can be used as a replacement for both alternators.

Warranty Info:
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. Click Here for full warranty policy.


  • MFG. Number XD350
  • Manufacturer Name XDP
  • Shipping Weight 17.00 lb.
  • Shipping Length 9 in.
  • Shipping Width 10 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • UPC 856217008830
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
5.0/5 Stars out of 1 Reviews
NCT Owner
(SOLDOTNA, AK) | July 25th, 2020
Extremely HD Alternator, The Weight Of This Alternator Alone Tells You The Windings & Rectifier Bridge, Diode Trio & Stator Are Extremely HD Just Like The Name Stands For. Amazing Quality Product. I’m Extremely Happy I Bought This, It’s Worth Every Dollar!! XDP HD350

Write a Review

Include Your Order Number For a Chance to Win a $100 Gift card

Overall Rating

Your Information

Email Address will not be made public.

Customer Photos

Customer Photos

See what others built Submit your photo

Questions and Answers

No questions about this product. Be the first to ask a question!

Ask a question about this product

Please allow up to 1 business day for reply.