XDP offers the highest quality components needed to maintain or upgrade the Charging & Starting systems in your 2004.5-2005 GM 6.6L Duramax LLY. XDP has the parts you need to handle the most taxing aftermarket electric components, like superior quality starters, alternators, and batteries.
Common electronic accessories like plows, winches, LED light bars, and audio equipment strain your charging system to its limit. The XDP HD Series High Output Alternators far exceed the OE output. The greater amperage of a high output alternator will lessen the drain on the charging system while providing more performance and increasing dependability. A popular upgrade for your electrical system is the XDP Gear Reduction Starter. With a smaller and more efficient motor that draws less amperage, this starter provides more torque than your stock starter. This improvement in torque makes it easier to turn over even a highly modified diesel.
If you have owned your truck for over a decade, you have probably already replaced your battery at least once as the average service life of a battery is 4-6 years. Swap out the battery or batteries in your truck before they leave you stranded. XDP offers batteries that are ideal for stock trucks or truckss that require greater output to handle additional electronic accessories. These batteries offer improved service life and increase reliability over other aftermarket replacement batteries.
The 2004.5-2005 GM 6.6L Duramax LLY 2500/3500 models are commonly equipped with a Group Size 78 Battery.