MAHLE CB-1805P-.25MM P-SERIES ROD BEARING (.25MM) FOR 2001-2016 GM 6.6L DURAMAX ENGINE

The MAHLE CB-1805P-.25MM is a P-Series connecting rod bearing designed for the 2001–2016 GM 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML). This bearing is undersized by 0.25mm, making it suitable for engines with crankshaft journals that have experienced wear. It's important to note that when using undersized bearings, the crankshaft must be rehardened with a nitride heat treatment to maintain optimal performance.CPP Diesel

? Product Overview

• Part Number: CB-1805P-.25MM

• Type: P-Series Tri-metal construction (TM-77)

• Material: Aluminum with hardened steel back and thin overlay

• Design: Medium eccentricity, high crush

• Size: Undersize by 0.25mm (0.0098")

• Quantity: Sold individually; 8 required per engine

• Fitment: 2001–2016 GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML)

?️ Specifications

• Housing Bore: 2.6372" – 2.6378" (66.9849mm – 67.0001mm)

• Shaft Diameter: 2.4764" – 2.4772" (62.9006mm – 62.9209mm)

• Max Length: 0.934" (23.7236mm)

• Max Wall Thickness: 0.0795" (2.0193mm)

The MAHLE CB-1805P-.25MM P-Series rod bearing is engineered for optimal performance in the 2001–2016 GM 6.6L Duramax diesel engines, covering models LB7, LLY, LBZ, LMM, and LML. This high-quality bearing is crafted with precision, featuring a tri-metal construction that combines aluminum with a hardened steel backing and a thin overlay. With an undersized specification of 0.25mm (0.0098”), it is specifically designed for engines requiring a reliable solution for worn crankshaft journals.

This rod bearing excels in performance due to its medium eccentricity and high crush design, ensuring a secure fit and superior load handling capabilities. Each bearing is constructed using MAHLE's TM-77 material, meeting or exceeding original equipment manufacturer specifications for durability and reliability. When integrating these undersized bearings, it's essential to reharden the crankshaft through a nitride heat treatment to preserve engine integrity and performance.

The MAHLE CB-1805P-.25MM is sold individually, requiring a total of eight for complete engine assembly. With specifications such as a housing bore of 2.6372" to 2.6378" and a shaft diameter of 2.4764" to 2.4772", it is designed to fit seamlessly into your Duramax engine. Engineered for those who demand performance and quality, it comes with a 12-month warranty, underscoring confidence in its craftsmanship.

Elevating your engine’s performance and prolonging its lifespan, the MAHLE CB-1805P-.25MM P-Series rod bearing is the perfect choice for more robust and efficient operation. Experience the difference with this top-tier component that reflects MAHLE's commitment to excellence in automotive parts.