Rod Bearing Duramax 6.6L LP5

The Rod Bearing Duramax 6.6L LP5 is a precision engine component engineered for heavy-duty diesel applications, particularly in marine and boating environments where engine reliability is non-negotiable. If you've spent years running diesel-powered vessels—whether commercial fishing boats, offshore platforms, or large recreational cruisers—you understand that bearing failure can leave you stranded far from help. This bearing serves as a critical load-carrying component in the crankshaft assembly, directly supporting engine performance under the sustained high-RPM and high-torque demands of Duramax 6.6L engines. Anglers and boaters operating in saltwater or remote freshwater conditions depend on original-specification bearings to maintain the durability and resale value of their vessels.

Manufactured by MAHLE ORIGINAL/CLEVITE under the part number CB2030P50MM, this rod bearing is built to OEM specifications and designed to manage the radial and thrust loads generated during combustion cycles. The 50mm journal size is precisely matched to Duramax LP5 crankshaft specifications, ensuring correct clearance and oil film thickness for reliable hydrodynamic lubrication. MAHLE's advanced bearing materials feature a bimetallic or tri-metal construction with copper-lead or aluminum alloy overlay, engineered to resist wear, corrosion, and micro-welding under extreme operating conditions. Compact at 2.4 x 1.3 x 3.25 inches and weighing just 0.24 lbs, the bearing's lightweight design contributes to efficient engine balance while its metallurgical composition resists the galvanic and chemical stresses of marine environments.

This bearing is essential for anyone performing a complete engine rebuild, crankshaft service, or routine bearing maintenance on Duramax 6.6L diesel engines commonly found in heavy-duty fishing vessels, workboats, and marine power plants. Marine technicians and experienced engine rebuilders recognize that using factory-specification bearings like the MAHLE CB2030P50MM maintains engine warranty coverage and ensures consistent performance across multiple seasons of operation. Installation requires proper bearing clearance measurement, appropriate journal surface preparation, and correct installation torque—tasks best performed by qualified marine diesel technicians familiar with Duramax crankshaft assembly procedures. Whether you're rebuilding after extended saltwater service or restoring an engine to full operational capability, original-specification rod bearings are the only choice for long-term reliability.