MAHLE CB1990P25MM CONNECTING ROD BEARING; .25MM FOR 2001-2016 GM 6.6L DURAMAX ENGINE

The MAHLE CB-1990P-25MM is an undersized connecting rod bearing designed for the 2001–2016 GM 6.6L Duramax diesel engines. This bearing is specifically engineered to accommodate a 0.25mm undersize, making it suitable for applications where the connecting rod journals have been ground to restore proper clearances.

 Specifications

• Part Number: CB-1990P-25MM

• Type: P-Series Performance Connecting Rod Bearing

• Undersize: 0.25mm

• Material: Tri-metal construction with TM-77 overlay

• Design Features:

  • Hardened steel back for added strength

  • Reduced overlay thickness to prevent overlay fatigue

  • High eccentricity for improved oil distribution

  • High crush for secure seating

• Sold As: Individual bearing

• Warranty: 12 months
  

 Vehicle Fitment

The MAHLE CB-1990P-25MM bearing is compatible with the following GM vehicles equipped with the 6.6L Duramax diesel engine:

• Chevrolet Silverado 2500HD/3500HD (2001–2016)

• GMC Sierra 2500HD/3500HD (2001–2016)

• Chevrolet Express 2500/3500 (2001–2016)

• GMC Savana 2500/3500 (2001–2016)

This bearing is suitable for both 12-valve (LB7, LLY, LBZ, LMM) and 24-valve (LML) engine configurations.