MAHLE CB-1805H-.25MM H-SERIES ROD BEARING (.025MM) FOR 2001-2016 GM 6.6L DURAMAX ENGINE

The MAHLE CB-1805H-.25MM is a high-performance connecting rod bearing designed for the 2001–2016 GM 6.6L Duramax diesel engines, including LB7, LLY, LBZ, LMM, and LML variants. This bearing is part of the H-Series line, known for its durability and performance under high-stress conditions.

? Product Overview

• Part Number: CB-1805H-.25MM

• Type: 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)

?️ Features

• High Load Capacity: Withstands over 60% higher loads compared to competitor bearings.

• Durability: Exceeds light vehicle OE durability requirements of 150,000 miles and heavy vehicle OE durability requirements of 300,000 miles.

• Seizure Resistance: Offers up to 40% better seizure resistance than competitors' engine bearings.

• Forgiving Surface: Provides a superior surface for forgiveness, beneficial in poorly maintained engines.