Connecting Rod 4943977 for Engine QSB6.7

Keywords: 4943977 connecting rod, QSB6.7 engine con‑rod, diesel engine forged connecting rod, excavator construction machinery engine spare parts, engine power system replacement components

Product Overview

Connecting Rod Part No.4943977 is a key forged power‑transmission component for QSB6.7 diesel engines, widely fitted for excavators, commercial trucks, generator sets and other heavy‑duty engineering equipment. It transfers combustion thrust force from piston to crankshaft, enduring alternating tension‑compression impact loads during engine high‑speed operation. This connecting rod effectively solves typical faults such as connecting rod bending, fatigue deformation, small‑end bushing wear and abnormal engine knocking caused by original component damage. Every connecting rod passes strict forging, heat‑treatment and dimensional testing before carton packing and delivery.

Detailed Specifications

Key Features & Advantages

• ✅ High‑strength alloy steel forging material, superior structural rigidity, impact‑resistance and anti‑fatigue performance under heavy‑duty cyclic working conditions.
• ✅ High‑precision machining for big‑end and small‑end bore, excellent fit with connecting rod bearing and piston pin for stable power output transmission.
• ✅ Effectively prevent engine abnormal knocking, power drop and connecting rod fracture risks resulted from failed original connecting rod assembly.
• ✅ Mature heat‑treatment technology, stable internal metallographic structure, guarantee long service life for continuous heavy‑load engine running.
• ✅ Perfect compatibility for QSB6.7 engine overhaul and maintenance projects.
• ✅ Good interchangeability, direct replacement installation.

Application Scope ‑

Fit Equipment: Excavators, trucks, generator sets and heavy‑duty machinery equipped with QSB6.7 diesel engine ‑ Widely used for machinery repair shops, engine rebuilding factories and heavy‑duty equipment overhaul services.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

Packaging & Shipping ‑

Export carton with shock‑proof protective packaging, avoid deformation and surface scratch during long‑distance logistics transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.