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2011-2016 Duramax Fuel System Replacement Kit (1090X)

Merchant Auto Part Number: 10903
$6,811.46 CAD

Injector Pump
Injector Option

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Description

Fits

Year Make Model Engine
2001-2016 Chevrolet/GMC Silverado/Sierra 2500HD/3500HD  6.6L LML Duramax

 

Catastrophic failure on CP3 fuel injection pumps on 2011-2016 LML Duramax trucks will send small metallic debris throughout the fuel system causing problems throughout the fuel system. The solution? A complete replacement kit that includes all the necessary components to fix this mess. Don't wait until it's too late - get it now!

This kit requires no tuning and is EPA-approved. The CP3 pump is already re-calibrated to match the LML stock CP4 fuel curve. This kit is designed to replace the less reliable CP4 that comes stock on the LML.

Part Number: 1090X

Features

  • No Tuning Required
  • EPA Approved
  • Recalibrated To Match LML Stock CP4 Fuel Curve
  • New S&S Modified CP3
  • Comprehensive Kit
  • Replaces Less Reliable CP4

Includes: 

  • CARB CP3 Pump
  • Fuel rails
  • Fuel injectors
  • Fuel lines
  • Master Filter Head Kit (Filters, filter head rebuild kit, WIF plug, bleeder screw, MA Additive)
  • All Gaskets & Seals Required

Additional Info

Duramax LML CP4 Pump Failure

The CP4 fuel injection pump in 2011-2016 Duramax trucks suffered high-pressure fuel pump issues due to lack of lubrication. The CP4 was designed to be a more efficient pump than its predecessor, the CP3 pump. However, the CP4 proved to be less reliable than the CP3. An LML CP4 pump failure will present itself with a hard start or no start condition and can result in the following trouble codes: P0087, P0088, P0191, or P128E. This can be confirmed by removing the CP4 pump and fuel pressure regulator and checking for cracks and metal debris on the fuel pressure regulator screen.

 

 

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