Year: 2001 - 2004

Application: GMC /  Chevy Duramax Diesel

Engine Displacement: 6.6 Liter

(Part Number: 851-1175-002)

Duramax 6.6L LB7 Turbo Billet Wheel Cartridge CHRA 2001 - 2004

Built and balanced with our SPX billet compressor wheel, 360 degrees thrust system, and step gap oil seal ring set in our California facility, this brand new turbo center section (AKA CHRA, Center Housing Rotation Assembly) is the direct upgraded replacement for your Duramax 6.6L Turbo from 2001 - 2004. Take the guessing work out of your turbo rebuild job by purchasing this turbo center section, and simply bolt on the end housings (turbine housing and compressor housing) to this and you are ready to go. 

All turbo center sections offered by SP Turboost Company, LLC are brand new, not re-manufactured nor reconditioned, and made to order. Please allow 1 - 2 business days for shipping confirmation once the order is received. 

SPX Billet Compressor Wheel:

*Aggressive Extended Tip

*Taller blade design allows our billet wheel to grab more air, and flow better at higher boost levels

*Lower EGT 

*4 - 7 lbs of boost increase 

*CNC machined from solid billet aluminum for durability

*6+6 blades

*Slim hub design which increases fins blade surface area

*Stock housing fitment, no modification required

360 degree thrust system:

The advantage of a 360 degree thrust bearing is that it has a full circle of lubrication, and an updated pad strategy to better disperse oil where it's needed. Most of the performance diesel turbochargers are running with this kind of set up for durability and longevity. Along with the improved journal bearing design, you will get a much better oil flow versus the conventional 270 degree thrust bearing. 

Upgraded step gap seal ring set:

Would you like to minimize the possibility of oil leak in your turbo? This upgraded stepped gap seal ring set provides a superior seal over the stock style seal rings. They keep your turbine wheel clean, free of deposits and crud caused by oil leaking through the seal.

We offer a 6 months limited warranty for this turbo center section. Please click here for details.