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XD521 XDP Remanufactured CP3 Fuel Pump - GMC/Chevy 6.6L Duramax 2001-2004

SKU: XD521
Mftr. Part#: XD521
The XDP Remanufactured CP3 Fuel Pump replaces the underperforming high-pressure pump in your 2001-2004 6.6L Duramax truck. A $275 refundable core charge will be required.

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Product TypeFuel Injection Pump
BrandXDP (Xtreme Diesel Performance)



Since this is a remanufactured product, a temporary "core charge" is added up front until we receive your original unit back. Once received and inspected, the charge will be reversed back to you. The core charge will be added to the price below. (Required)



A bad CP3 pump can cause a loss of power or potentially leave you broken down and stranded. This CP3 will help get your truck back up and running like it should, each pump is assembled using the highest quality components and is built to meet or exceed the stringent factory specifications. All pumps are end-of-line tested to ensure a long service life.


  • Reman CP3 pump
  • $275 Refundable core charge
  • Meets or exceeds factory specifications
  • End-of-line testing to ensure quality
  • Assembled with high quality components
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