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USD 299.95
Part #: XD224

XDP Direct Replacement High Output 220 AMP Alternator XD224

2001-2007 GM 6.6L Duramax
Part #: XD224
★★★★★ ★★★★★ 7 Reviews
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Don't just replace the failing alternator in your 2001-2007 GM 6.6L Duramax, upgrade it with the XDP Direct Replacement High Output 220 AMP Alternator XD224. The XDP Direct Replacement Alternators are the perfect option for the Duramax owner that upgraded their truck and wants more than a remanufactured parts store unit. 

Common performance upgrades like plows, on-board air systems, horn kits, and lighting upgrades can max out the capabilities of your charging system. The XD224 is designed to increase reliability and output of your charging system to alleviate the strain of aftermarket upgrades. With a 220 Amp output, this alternator almost doubles the factory output. This gives you the ability to get the most out of your charging system whether you're out plowing snow, or at an event showing off stereo system upgrades.  

The XDP High Output 220 Amp Alternator is a direct bolt-on replacement and requires no modifications for installation. Each alternator comes pre-tested and is ready for installation. 

  • 220 Amp 
  • Bolt-On Upgrade
  • 100% Brand New, No Core! 
  • 1-Year Warranty 
XD224 Specifications: 
  • Amp: 220
  • Voltage: 12V 
  • Rotation: Clockwise
  • Pulley Class: S6, 6-Groove Pulley
  • Internal Regulator 
  • Internal Fan 
  • Polarity: Negative
Note: If used in a dual alternator application, the output wire must be upgraded.

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.

Vehicle Applications

2001 Chevy 6.6L LB7 Duramax
2002 Chevy 6.6L LB7 Duramax
2003 Chevy 6.6L LB7 Duramax
2004 Chevy 6.6L LB7 Duramax
2004.5 Chevy 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax
2006 Chevy 6.6L LLY/LBZ Duramax
2007 Chevy 6.6L LLY/LBZ Duramax
2001 GMC 6.6L LB7 Duramax
2002 GMC 6.6L LB7 Duramax
2003 GMC 6.6L LB7 Duramax
2004 GMC 6.6L LB7 Duramax
2004.5 GMC 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax
2006 GMC 6.6L LLY/LBZ Duramax
2007 GMC 6.6L LLY/LBZ Duramax


  • MFG. Number XD224
  • Manufacturer Name XDP
  • Shipping Weight 17.00 lb.
  • Shipping Length 9 in.
  • Shipping Width 10 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • UPC 856217008038
  • Warranty Yes
  • Warranty Info 1 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -
  • Cross Reference # AL8515X


★★★★★ ★★★★★
5.0/5 Stars out of 7 Reviews
Verified Buyer
(Evansville, Wi) | August 23rd, 2021
Best alternator I can buy for the money, not having the slip collar is what I wanted and not needing a duel alternator setup. Thanks much
Verified Buyer
220 amp alternator
(NC) | August 20th, 2021
Order Number: 2132651 Website Order Number: 1490779 Working well so far. Still sets on 13 amps at idle but definitely stopped my dash lights from going bright to dim. I also have a lift pump that was running erratically and it stopped it. Truck is running better. Thanks
220A alt
(MI) | March 22nd, 2021
Worked great. For the 4 days I had it until my truck was stolen. Hooked up to a bunch of stuff, on board air, amp for door speakers, sub amp, pushing 2000ish watts rms never dropped below 14.2v
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Questions and Answers

Is this a smaller pulley size than stock? Would I need a shorter belt?
View Staff Answer 
No. The XDP High Output 220 Amp Alternator XD224 is a bolt-on replacement and requires no modifications for installation.

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