Komatsu Excavator Engine Connecting Rod 6138-31-3104 | Diesel Engine Parts

Product Details

Product Overview

This premium Komatsu Excavator Diesel Engine Connecting Rod (Part Number: 6138-31-3104) is a critical component designed for high-performance diesel engines used in heavy construction and mining equipment. Manufactured to OEM specifications, this connecting rod ensures optimal power transmission, reduced friction, and extended engine life. We serve a global B2B clientele, supplying to major markets across North America, Europe, Southeast Asia, the Middle East, and South America. Our parts are sourced from certified factories with robust export experience, ensuring fast and reliable delivery to major ports and industrial centers worldwide.

Key Features & Benefits

• High-Strength Material: Forged from premium alloy steel for superior tensile strength and fatigue resistance under extreme loads.
• Precision Engineering: Machined to exact tolerances (OEM spec) for a perfect fit, reducing vibration and wear on the crankshaft and piston assembly.
• Enhanced Durability: Heat-treated and shot-peened surface to withstand high combustion pressures and thermal stress.
• Optimal Lubrication: Designed with precision oil passages for efficient lubrication of the wrist pin and crankpin bearings, minimizing friction.
• Rigid Quality Control: 100% inspected for dimensional accuracy, weight balance, and material integrity before shipment.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following original Komatsu part numbers:

• 6138-31-3104 (Original Komatsu Number)
• 6138-31-3103 (Superseded/Alternative Number)

Note: Always verify your engine model and existing part number before purchase.

Compatibility

This connecting rod is specifically designed for use in Komatsu excavators equipped with the following diesel engine models:

• Komatsu SAA6D107E-1
• Komatsu SAA6D107E-2
• Komatsu SAA6D107E-3

Common Vehicle Applications:

• Komatsu PC200-8, PC210-8, PC220-8 Excavators
• Komatsu PC300-8, PC350-8 Excavators
• Other Komatsu models using the SAA6D107 engine series (2006-2015)

Global Supply & Distribution

We are a trusted supplier to the global aftermarket and OEM replacement parts industry. Our logistics network ensures:

• Worldwide Shipping: We ship to all continents via sea, air, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, Poland), Asia-Pacific (Japan, Australia, Indonesia, India), Middle East (UAE, Saudi Arabia, Qatar), Africa (South Africa, Nigeria), and South America (Brazil, Chile).
• Fast Delivery: Stock items dispatched within 24-48 hours. Bulk orders shipped to major ports (e.g., Rotterdam, Shanghai, Houston, Jebel Ali) within 7-15 days.
• Export Expertise: Experienced in international trade documentation, customs clearance, and compliance with local regulations.

Quality Assurance

• Manufacturing Standard: Produced in ISO 9001:2015 certified facilities.
• Certifications: Parts meet or exceed OEM quality standards (SAE, JIS, DIN applicable).
• Testing: 100% dimensional inspection, hardness test, and magnetic particle inspection (MPI) for cracks.
• Warranty: 12-month warranty against material or workmanship defects.

FAQ

Q1: Will this connecting rod (6138-31-3104) fit my Komatsu PC210-8 excavator?
A: Yes, this part is compatible with the Komatsu SAA6D107E-1 engine, which is standard in the PC210-8 model. We recommend cross-referencing your existing rod number to confirm fitment.

Q2: Do I need to replace the connecting rod bolts and bearings at the same time?
A: Yes, for proper installation and safety, we strongly recommend replacing the connecting rod bolts and bearings (main and rod bearings) with new ones. Reusing old bolts can lead to bolt fatigue and failure.

Q3: What is the warranty period and what does it cover?
A: We offer a 12-month warranty covering manufacturing defects such as material flaws, incorrect dimensions, or premature failure under normal operating conditions. It does not cover damage caused by improper installation, lack of lubrication, or over-revving the engine.