XDP  |  SKU: HVCD_XD350

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

Regular price $ 63300

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

Description

Upgrade Your Charging System with the XDP Wrinkle Black HD High Output Alternator

The XDP Wrinkle Black HD High Output Alternator is designed specifically for 2011-2019 GM 6.6L Duramax trucks, enhancing your vehicle's electrical performance. This alternator is perfect for those who want to power high-demand accessories like off-road lights, aftermarket audio systems, and more.

Key Features:

  • 245 Amp Output
  • OE Style Decoupler Pulley for improved efficiency
  • 100% Brand New, No Core Charge!
  • Easy bolt-on installation

This alternator fits various models, including:

Year Make Model Submodel Notes
2011 GMC Sierra 3500 HD WT
2012 GMC Sierra 3500 HD WT
2013 GMC Sierra 3500 HD WT
2014 GMC Sierra 3500 HD WT
2015 GMC Sierra 3500 HD WT
2016 GMC Sierra 3500 HD WT
2017 GMC Sierra 3500 HD WT
2018 GMC Sierra 3500 HD WT
2019 GMC Sierra 3500 HD WT

With the XDP High Output Alternator, you can easily handle the electrical demands of your truck without worrying about straining your factory system. Not only does this alternator provide a reliable power source, but its ultra-durable wrinkle black coating ensures it stands up to the elements.

Warranty Information

All products manufactured by XDP come with a 1-Year warranty against defects in materials and craftsmanship. This warranty is limited to one (1) year from the date of sale and includes only the parts contained within the product's kit.

Upgrade your 2011-2019 GM 6.6L Duramax truck today with the XDP Wrinkle Black HD High Output Alternator and enjoy enhanced performance and reliability!