Genuine VOLVO Connecting Rod Bearing Shell Set — Engine Conrod Big End Bearing

The Genuine VOLVO Premium Heavy-Duty Connecting Rod Bearing Shell Set (Part Numbers: 20766790 / VOE20766790 / 21290112), commonly named conrod bearing and crankpin bearing, is a high-precision heavy-load power accessory professionally manufactured for VOLVO D7E and D6E electronic diesel engines. It is installed inside connecting rod big end and matching bearing cap, closely fitted with crankshaft crankpin journals. Different from main bearings supporting overall crankshaft weight, connecting rod bearings directly bear strong impact force generated by each combustion stroke. During long-term operation, it withstands reciprocating inertia force, piston downward impact and lubricating oil film shear pressure. Replacing worn, scratched and peeling connecting rod bearings in engine overhaul can restore standard lubrication clearance, reduce running friction, avoid crankpin surface abrasion and guarantee safe operation of internal engine moving parts.

Core Technical Advantages

• Multi-Layer Copper-Lead Alloy Structure Steel base plus high-strength anti-friction alloy layer, outstanding fatigue resistance, stable bearing capacity under instantaneous torque impact.

• Optimized Dynamic Pressure Lubrication Design Uniform oil film forming structure keeps stable high-pressure oil film isolated, effectively avoid dry friction under peak load.

• Excellent Impurity Embedding Capacity Fine surface layer can adsorb tiny hard particles in lubricating oil, effectively protect crankshaft crankpin from scratch damage.

• Micron Level Precision Thickness Control Strictly manufactured per original factory standards, quickly restore engine standard radial assembly clearance after installation.

Technical Specifications

Master Application Fleet Guide

This genuine connecting rod bearing set is widely used in engine bottom overhaul maintenance of VOLVO heavy-duty construction machinery:

• Heavy Crawler Excavators: EC200D, EC200E, EC210D, EC210E, EC240B, EC250D, EC290B, EC300D

• Backhoe Loaders & Wheel Loaders: BL60, BL71B, L45B, L110E Engineering Handling Equipment

• Road Construction Machinery: G710B, G746B, G960, G990 Motor Graders, SD135B Compactors, ABG8820B, P8820D Asphalt Pavers

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

Connecting rod bearing belongs to high-wear mandatory replacement part for engine major repair. It bears direct combustion impact force and wears faster than main bearings under heavy load and insufficient lubrication. Excessive clearance will cause oil pressure drop and affect whole engine lubrication system. It is recommended that spare parts wholesalers and engine repair centers stock this product sufficiently, and match it with D7E/D6E main bearings, thrust washers, high-strength connecting rod bolts and crankshaft oil seals to form complete engine bottom overhaul spare parts package, meeting fleet unified maintenance demand.

Common Failure Symptoms

• Obvious regular rhythmic knocking sound in the middle engine block, sound becomes louder obviously when accelerating and loading

• Engine low oil pressure warning lights up easily, especially prominent under hot engine working condition

• A large amount of copper alloy metal powder and scraps appear in waste engine oil and oil filter

Global Brand Cross-Reference Matrix

All machine models are for compatibility reference only. Our heavy-duty connecting rod bearings effectively buffer combustion impact and prolong engine service life.