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.

The MAHLE CB-1990P-25MM Connecting Rod Bearing is a high-performance solution specifically crafted for the 2001–2016 GM 6.6L Duramax diesel engine. This premium component caters to the needs of enthusiasts and professionals looking to enhance their engine's performance and longevity. With a precise 0.25mm undersize design, this bearing is perfect for applications where connecting rod journals have been reground, ensuring optimal clearances for smooth operation.

Constructed from tri-metal materials, the CB-1990P-25MM features a robust TM-77 overlay which significantly enhances durability and wear resistance. The hardened steel back adds strength, while the reduced overlay thickness prevents overlay fatigue, making this bearing suitable for demanding engine conditions. The high eccentricity design promotes improved oil distribution, maximizing lubrication efficiency, and reducing friction during operation. Additionally, the high crush capability guarantees secure seating within the connecting rod, providing added assurance in performance.

This bearing is sold individually and comes with a 12-month warranty, solidifying its reliability and quality. It seamlessly fits various GM vehicles equipped with the 6.6L Duramax engine, including the Chevrolet Silverado and GMC Sierra HD series, as well as the Chevrolet and GMC Express and Savana vans. Whether you are working on a 12-valve or 24-valve engine configuration, the MAHLE CB-1990P-25MM is designed to meet or exceed original equipment manufacturer specifications.

Ideal for engine rebuilds and performance upgrades, this connecting rod bearing exemplifies excellence in engineering, ensuring that your Duramax engine performs at its peak potential. Invest in reliability and performance with the MAHLE CB-1990P-25MM Connecting Rod Bearing.