6D140 Crankshaft 6261-31-1200 Forged Steel for Komatsu Engines Repair Parts

Product Details

Product Overview

This high-quality 6D140 Crankshaft (Part Number: 6261-31-1200) is a precision-engineered replacement component designed for Komatsu diesel engines. As a critical rotating assembly part, this forged steel crankshaft converts the linear motion of the pistons into rotational torque, ensuring smooth and reliable engine operation.

Manufactured to strict OEM specifications, this crankshaft is ideally suited for heavy-duty applications including excavators, bulldozers, loaders, trucks, and other industrial machinery powered by the Komatsu 6D140 engine series. It is a direct-fit replacement part, offering a robust solution for engine overhauls and repairs.

Key Features & Benefits

• Premium Forged Steel Construction: Built from high-strength forged steel for superior durability and resistance to torsional stress and fatigue in demanding working conditions.
• OEM Specification: Manufactured to match original equipment dimensions and tolerances (OEM Size), ensuring a precise fit and reliable performance without modification.
• Enhanced Engine Reliability: Designed to restore original engine power and smoothness, reducing vibration and extending the service life of your Komatsu engine.
• Stringent Quality Control: Each unit undergoes rigorous testing, with a Machinery Test Report and Video Outgoing Inspection provided to confirm quality standards.
• Direct Replacement: Engineered as a direct bolt-in replacement for the original 6261-31-1200 crankshaft, simplifying the installation process and minimizing downtime.
• Comprehensive Warranty: Backed by a 6-month warranty, providing peace of mind and protection for your investment.

Technical Specifications

OEM Cross-Reference

This crankshaft is a direct replacement for the following Komatsu original equipment manufacturer (OEM) part numbers:

• Komatsu Part Number: 6261-31-1200

If your engine uses a crankshaft with a different OEM number, please contact us to verify compatibility. We also offer OEM Service for custom or specialized requirements.

Compatibility

This 6D140 crankshaft is commonly used for the following engine and vehicle applications. Please verify your specific engine model before purchase:

• Engine Model: Komatsu 6D140
• Vehicle/Equipment Applications: Excavators, Bulldozers, Loaders, Trucks, Forklifts, Buses

Global Supply & Distribution

Based in Guangdong, China, we are a leading supplier of heavy-duty engine parts with a robust global distribution network. Our logistics capabilities ensure fast and reliable delivery to major industrial centers worldwide.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Shipping Capabilities: We offer worldwide shipping via air, sea, and express courier (DHL, FedEx, UPS, TNT).
• Fast Delivery: We maintain efficient stock levels to ensure quick dispatch to major ports such as Shanghai, Shenzhen, and Guangzhou.
• Trade Compliance: Our team has extensive experience in international export documentation and customs clearance.

Quality Assurance

We are committed to delivering high-quality products that meet international standards. Our quality assurance process includes:

• Manufacturing Standards: Components are produced under strict quality control systems in ISO-certified facilities.
• Testing Procedures: Each crankshaft is inspected for dimensional accuracy, material integrity, and surface finish. A Machinery Test Report is available upon request.
• Inspection: We provide Video Outgoing Inspection to allow you to verify the product before shipment.
• Warranty: All parts are backed by a 6-month warranty against manufacturing defects.

FAQ

Q1: Is this crankshaft a direct replacement for my Komatsu 6D140 engine?
A: Yes, this part is designed as a direct OEM replacement for the Komatsu 6D140 engine. However, we always recommend verifying your specific engine serial number and the original part number (6261-31-1200) to ensure perfect compatibility before installation.

Q2: What installation precautions should I take?
A: Professional installation by a qualified diesel mechanic is strongly recommended. Ensure all bearing surfaces are properly lubricated before assembly, and always use new main and rod bearings. Follow the manufacturer’s torque specifications and tightening sequence for the main bearing caps.

Q3: How should I maintain this crankshaft after installation?
A: Regular oil changes using the correct viscosity grade is crucial for crankshaft longevity. Monitor engine oil pressure and listen for unusual knocking sounds, which could indicate bearing wear. Following the engine manufacturer’s maintenance schedule will help maximize the service life of the crankshaft.