GM CP4.2 High-Pressure Fuel Injection Pump – Genuine Replacement for 2011–2016 LML Duramax

Description

Fits: 2011 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel

OEM GM replacement fuel injection pump. This CP4.2 is the latest updated and revised injection pump available.

Notes:

• To completely eliminate future CP4 fuel pump failures, we highly recommend doing a CP3 conversion.
• All Core Return Costs are responsible to the customer. Please contact our customer support team with any core return questions you may have. Core returns must be processed online via the Return Request Form

Replaces:

• GM Part# 12661059
• GM Part# 12658095
• Bosch Part# 0986437421

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