Con Rod Bush 3970951 for Cummins 6LT Diesel Engine Parts | Excavator & Truck

Product Details

Product Overview

This Con Rod Bush, part number 3970951, is a precision engine component specifically designed for use with Cummins 6LT diesel engines. As a critical part of the connecting rod assembly, this bush ensures proper lubrication and reduces friction between the connecting rod and the piston pin, contributing to overall engine durability and performance.

Manufactured to OEM size specifications, this component is suitable for a wide range of heavy-duty applications, including excavators, forklifts, trucks, loaders, and bulldozers. It is an ideal replacement part for engine overhauls or rebuilds where maintaining exact factory tolerances is essential for reliable operation. While primarily associated with the Cummins 6LT platform, please verify compatibility with your specific engine model prior to installation.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM size standards (3970951) to ensure a perfect fit and consistent performance within the connecting rod assembly.
• Durability Under Load: Designed to withstand the high pressures and cyclic loads typical of diesel engines in construction and industrial machinery.
• Reduced Friction: Promotes efficient oil film retention, minimizing wear on both the bush and the piston pin for extended component life.
• Versatile Application: Compatible with a broad range of heavy equipment including excavators, loaders, bulldozers, trucks, and buses using the 6LT engine.
• Rigorous Quality Control: Each unit undergoes outgoing video inspection and machinery test reporting to confirm dimensional accuracy and structural integrity.
• Reliable Sourcing: A direct replacement part from, supported by a standard warranty for buyer confidence.

Technical Specifications

OEM Cross-Reference

This component is a direct replacement for the following OEM part numbers. Always confirm with your engine’s parts manual before ordering.

• Cummins OEM: 3970951

Note: If your specific OEM number is not listed, please contact our sales team with your engine serial number for cross-referencing.

Compatibility

This Con Rod Bush (3970951) is commonly used for the following engine models and applications. Fitment is inferred based on standard OEM specifications. Always verify with your equipment manufacturer.

• Engine: Cummins 6LT Series (Diesel)
• Applications: Excavators, Forklifts, Trucks, Loaders, Bulldozers, Buses, and other heavy industrial machinery utilizing the 6LT engine platform.

Global Supply & Distribution

We provide worldwide shipping for this Cummins 6LT Con Rod Bush, ensuring fast and reliable delivery to industrial centers across the globe. Our distribution network supports major markets including:

• North America: Serving construction and trucking hubs in the USA, Canada, and Mexico.
• Europe: Fast delivery to ports and inland industrial zones in Germany, the UK, France, and the Netherlands.
• Asia-Pacific: Direct supply to equipment dealers and repair shops in Australia, Singapore, and the Middle East.
• Africa & South America: Reliable export logistics to mining and construction regions.

We have extensive experience in international trade, ensuring proper documentation and compliance for hassle-free customs clearance.

Quality Assurance

• Manufacturing Standards: Components are produced in ISO-compliant facilities in Guangdong, China, with strict adherence to material and dimensional specifications.
• Testing Procedures: Each batch undergoes Machinery Test Report verification and Video Outgoing Inspection to confirm key parameters.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your engine rebuild or maintenance project.

FAQ

Q1: Is this Con Rod Bush (3970951) a direct fit for my Cummins 6LT engine?
A: This bush is manufactured to the OEM size and specification for the 6LT engine series. It is a direct replacement for the original part number 3970951. However, to ensure perfect compatibility, we recommend comparing the dimensions (inner/outer diameter and length) with your original part or consulting your engine’s parts catalog.

Q2: What is the recommended installation procedure for this part?
A: Installation should be performed by a qualified diesel mechanic. The bush typically requires pressing into the connecting rod small end. Ensure the oil hole (if present) aligns correctly with the lubrication passage in the rod. After installation, verify the inside diameter to ensure it is within specification for the piston pin clearance. Use proper lubrication during assembly.

Q3: How does this bush affect engine performance if it is worn?
A: A worn or damaged con rod bush can cause excessive clearance between the connecting rod and piston pin, leading to knocking noises, reduced oil pressure, and accelerated wear on the piston pin and rod bore. Replacing it with this OEM-spec part (3970951) during an overhaul restores proper clearances, reduces friction, and helps maintain engine power and reliability.