4D94 Crankshaft 6144-31-1200 for Komatsu Engine Parts | Forklift Excavator

Product Details

Product Overview

This is a high-precision 4D94 Crankshaft, identified by the OEM part number 6144-31-1200, specifically designed for integration into Komatsu diesel engine platforms. As a critical rotating component, this crankshaft converts the linear motion of the pistons into rotational torque, making it essential for engine performance and durability.

Manufactured to meet OEM size specifications, this crankshaft is a direct replacement part commonly used in a variety of heavy machinery applications, including forklifts, excavators, and loaders. It is a key component for engine overhauls or rebuilds, ensuring your equipment returns to peak operational efficiency.

Key Features & Benefits

• Direct Fit Replacement: Engineered to OEM specifications (6144-31-1200) for a precise, hassle-free installation on the 4D94 engine block.
• Robust Durability: Constructed from high-strength alloy steel to withstand the extreme torsional stresses and cyclic loading of diesel combustion.
• Precision Ground Journals: Main and connecting rod journals are precision-ground to exact tolerances, ensuring optimal oil clearance and reduced friction for longer engine life.
• Dynamic Balance: The crankshaft is dynamically balanced to minimize vibration, promoting smoother engine operation and reducing wear on bearings and seals.
• Versatile Application: Suitable for a wide range of industrial machinery, providing a reliable solution for maintaining your fleet’s uptime.
• Rigorous Testing: Each unit undergoes a machinery test report and outgoing video inspection to verify dimensional accuracy and structural integrity before shipping.

Technical Specifications

OEM Cross-Reference

This crankshaft is a direct replacement for the following OEM part numbers:

• Komatsu OEM: 6144-31-1200
• Alternate References: 6144311200

Compatibility

This crankshaft is specifically designed for the Komatsu 4D94 diesel engine. Based on this engine fitment, it is commonly used for the following machinery applications:

• Forklifts: Various models powered by the 4D94 engine.
• Excavators: Mini and small excavator models.
• Loaders: Compact wheel loaders and skid steer loaders.
• Bulldozers: Small dozer models.
• Trucks & Buses: Light-duty trucks and buses utilizing this engine platform.

Please verify your engine model (4D94) and existing part number before purchasing to ensure correct fitment.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to our B2B partners worldwide. Our logistics network supports efficient shipping to major industrial hubs across all continents.

• North America: Regular shipments to ports in Los Angeles, Houston, and New York/Newark.
• Europe: Fast delivery to Rotterdam, Hamburg, and Felixstowe.
• Asia-Pacific: Prompt service to Singapore, Tokyo, and Sydney.
• Middle East & Africa: Reliable shipping to Dubai, Jeddah, and Durban.
• South America: Regular routes to Santos and Callao.

We have extensive export experience and can handle all international trade compliance documentation to ensure a smooth customs clearance process for our clients.

Quality Assurance

Our manufacturing process adheres to strict international quality standards. Every crankshaft is produced in a facility that focuses on precision engineering and metallurgical integrity.

• Certifications: Products are manufactured under standard quality management systems.
• Testing: Each crankshaft undergoes a comprehensive Machinery Test Report and a Video Outgoing Inspection to confirm it meets all dimensional and material specifications.
• Warranty: We stand behind the quality of our parts with a 6-month warranty against manufacturing defects.

FAQ

Q: Is this crankshaft a direct replacement for my Komatsu 4D94 engine?

A: Yes, this crankshaft (Part No. 6144-31-1200) is specifically manufactured to OEM specifications for the Komatsu 4D94 diesel engine. It is designed as a direct bolt-in replacement. However, we always recommend verifying your engine model and existing part number to ensure 100% compatibility before installation.

Q: What is the recommended installation procedure for this crankshaft?

A: Installation should be performed by a qualified diesel mechanic. Key steps include cleaning the engine block, inspecting main bearing journals for any debris, applying proper assembly lubricant to the bearings and journals, and torquing the main bearing caps to the manufacturer’s specified sequence and torque settings. Always replace main and rod bearings during a crankshaft replacement.

Q: How can I be sure this is a high-quality part and not a counterfeit?

A: We provide a Machinery Test Report and a Video Outgoing Inspection for every crankshaft we ship. This documentation verifies the part’s dimensional accuracy and material integrity. Additionally, the part is backed by a 6-month warranty, giving you confidence in its quality and performance for your heavy-duty applications.