Genuine VOLVO Connecting Rod Bolt Assembly — High-Tensile Engine Structural Fastener

The Genuine VOLVO Premium Heavy-Duty Connecting Rod Bolt Assembly (Part Numbers: 11700326 / VOE11700326 / 2903964), also known as conrod bolt and big end cap bolt, is an indispensable core engine fastener designed for high-torque VOLVO B, D and E series diesel engines. It firmly fastens connecting rod body and bearing cap, stably locks rod bearing shells (21490903) around crankshaft journals. It bears huge reciprocating inertia force, combustion impact load and shear force during engine operation. Replacing old bolts with new high-strength ones during engine overhaul effectively avoids bearing displacement, shell rotation, connecting rod fracture and guarantees complete internal engine structural safety.

Core Technical Advantages

• Aerospace Grade Alloy Steel Forging: Adopts vacuum refined high-strength alloy steel, processed by precise quenching and tempering, featuring excellent tensile resistance and anti-breaking performance.

• Cold-Rolled Fatigue Resistant Thread: Threads are cold-formed after heat treatment to keep complete metal grain flow, effectively resist cyclic load fatigue and prevent thread slipping and cracking.

• Professional TTY Torque-to-Yield Structure: Reasonable rod body design enables controllable elastic stretching after standard tightening, forming lasting anti-vibration clamping force.

• CNC Precision Machining: Flat and smooth bolt seating surface ensures even stress distribution, eliminates local stress concentration and extends overall service life.

Technical Specifications

Master Application Fleet Guide

This genuine connecting rod bolt is widely used for full maintenance of VOLVO heavy-duty engineering machinery engines:

• Crawler Excavators: EC200D, EC210D, EC210E, EC240B, EC250D, EC290B, EC300D, EC350D

• Backhoe Loaders & Wheel Loaders: BL60, BL71B, L45B, L110E

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

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

Connecting rod bolts belong to one-time use TTY fasteners and are strictly prohibited from secondary use. After being tightened to standard torque, bolts have entered plastic deformation state and cannot restore original tension. Reuse will easily cause bolt fracture, leading to serious engine cylinder breaking accidents. It is suggested that spare parts distributors and engine repair workshops match this model bolt together with connecting rod bearings, main bearings, piston rings and oil pan gaskets to form complete engine bottom-end overhaul kits.

Common Failure Manifestations

• Obvious heavy knocking sound at engine lower crankcase, louder while accelerating, caused by loose connecting rod cap due to insufficient bolt tension

• Sudden drop of engine oil pressure, metal scrap inside engine oil, resulting from bearing wear and clearance increase

• Sudden engine locking and oil leakage, severe engine damage directly caused by broken connecting rod bolt

Global Brand Cross-Reference Matrix

All machine models are for compatibility reference only. Our genuine high-strength connecting rod bolts provide reliable long-term protection for VOLVO full-series diesel engines.