4D102 Crankshaft for Komatsu Engine Parts – Excavator, Loader, Bulldozer, Forklift

Product Details

Product Overview

This high-quality 4D102 Crankshaft is a precision-engineered replacement component specifically designed for Komatsu diesel engine parts applications. As a critical rotating component within the engine block, this crankshaft converts the linear motion of the pistons into rotational torque, directly powering the drivetrain of heavy machinery.

Manufactured under the brand, this part is commonly used in a variety of heavy equipment including forklifts, excavators, trucks, loaders, bulldozers, and buses. The part number and engine model 4D102 are clearly identified, ensuring a direct match for engine rebuilds or replacements. Please verify your existing engine model and part number to confirm fitment, as applications may vary by specific machine model and serial number.

Key Features & Benefits

• Precision Ground Surfaces: Manufactured to OEM size specifications, ensuring proper journal diameters and surface finishes for optimal oil film retention and reduced friction.
• Superior Material Strength: Constructed from high-strength alloy steel, providing the necessary durability to withstand the high torsional and bending stresses of diesel engine operation.
• Dynamic Balancing: Each crankshaft undergoes rigorous dynamic balancing to minimize vibration, leading to smoother engine operation and extended bearing life.
• Direct OEM Replacement: Designed as a direct replacement for the Komatsu 4D102 engine family, simplifying the repair process for technicians.
• Rigid Quality Control: Every unit passes a machinery test report and video outgoing inspection to verify dimensional accuracy and structural integrity before shipment.

Technical Specifications

OEM Cross-Reference

This 4D102 crankshaft is designed as a direct replacement for the original Komatsu 4D102 engine series. While a specific OEM part number is not listed in the source data, the part is engineered to meet or exceed the specifications of the standard Komatsu 4D102 crankshaft. Please cross-reference your existing part number with your equipment dealer or service manual to ensure compatibility.

Compatibility

This crankshaft is specifically designed for the Komatsu 4D102 diesel engine. It is commonly used for the following applications:

• Excavators
• Forklifts
• Trucks
• Loaders
• Bulldozers
• Buses and other industrial equipment

Note: Fitment is inferred based on the engine model. Always verify the specific engine configuration and model year of your equipment before purchasing.

Global Supply & Distribution

We offer worldwide shipping capabilities, serving major markets across North America, Europe, Asia-Pacific, the Middle East, Africa, and South America. Our logistics network ensures fast and reliable delivery to major ports and industrial centers including Los Angeles, Rotterdam, Dubai, Shanghai, and Singapore.

With extensive export experience and compliance with international trade standards, we provide secure packaging and efficient customs clearance support for B2B buyers globally. Whether you require air freight for urgent orders or sea freight for bulk shipments, we can accommodate your logistics needs.

Quality Assurance

Each 4D102 crankshaft is manufactured under strict quality control standards in our Guangdong facility. Key quality measures include:

• Machinery Test Report: Provided with each unit to confirm dimensional and material specifications.
• Video Outgoing Inspection: A video record of the final inspection is available upon request, offering full transparency.
• Warranty: Backed by a 6-month warranty against manufacturing defects, ensuring peace of mind for your investment.

FAQ

Q: How do I confirm this crankshaft fits my Komatsu engine?

A: Please verify your engine model is 4D102. Check the casting number on your existing crankshaft or consult your equipment’s service manual. If you are unsure, provide us with your machine’s serial number and engine model, and we can assist with cross-referencing.

Q: Is this a new or remanufactured part?

A: This is a brand new aftermarket crankshaft, manufactured to OEM specifications. It is not a remanufactured or used part, ensuring full service life and performance.

Q: What is the recommended installation procedure?

A: Installation should be performed by a qualified diesel mechanic. It is critical to clean all oil passages, apply proper assembly lubricant to bearings, and torque main bearing caps to the manufacturer’s specifications. We recommend replacing main and rod bearings simultaneously for optimal performance.