MAHLE CB1990P CONNECTING ROD BEARING (STD) FOR 2001-2016 GM 6.6L DURAMAX ENGINE

The MAHLE CB-1990P is a high-performance P-Series connecting rod bearing designed for the 2001–2016 GM 6.6L Duramax diesel engines. This bearing is engineered to meet or exceed OEM specifications, ensuring precise fitment and compatibility with your Duramax engine.

 Specifications

• Part Number: CB-1990P

• Type: P-Series Performance Connecting Rod Bearing

• 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 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)

Specifically, this bearing fits the "A" stamped connecting rods commonly found in these models. For rods marked with "B," the CB-1805P bearing is recommended.

The MAHLE CB1990P Connecting Rod Bearing (STD) is engineered specifically for 2001-2016 GM 6.6L Duramax diesel engines, delivering superior performance and reliability. As a part of MAHLE's P-Series, this high-performance bearing is designed to meet or even exceed original equipment manufacturer (OEM) specifications, ensuring a precise fit and seamless integration with your engine.

Constructed with a durable tri-metal framework featuring a TM-77 overlay, the CB1990P is built to withstand the rigors of demanding engine conditions. Its hardened steel back adds strength, while a reduced overlay thickness helps prevent overlay fatigue—making it a trusted choice for both casual drivers and performance enthusiasts alike. The high eccentricity design promotes optimal oil distribution, ensuring that engine components remain lubricated and functioning smoothly under pressure. Additionally, the elevated crush feature guarantees firm seating, which is essential for maintaining engine stability.

Compatible with popular GM models such as the Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD, as well as the Chevrolet Express and GMC Savana models from 2001 to 2016, this bearing fits "A" stamped connecting rods commonly found in these vehicles. For those with "B" stamped rods, the CB-1805P is the alternative.

Sold as an individual bearing, the MAHLE CB1990P comes with a 12-month warranty, reflecting the brand's commitment to quality and reliability. Whether you’re tackling heavy-duty tasks or simply ensuring your vehicle runs at its best, this connecting rod bearing is a vital component for your Duramax engine, delivering dependable performance for the long haul.