3d94 4d94 4d94-3 Cylinder Liner 6144-21-2211 For Komatsu Engine Parts

Product Details

Product Overview

This high-quality cylinder liner, identified by part number 6144-21-2211, is specifically designed for the Komatsu 4D94 and 4D94-3 diesel engine platforms. As a critical component of the engine block assembly, this liner provides the precise bore surface required for optimal piston ring seal and combustion efficiency. It is commonly used in a variety of heavy equipment applications, including excavators, loaders, and forklifts, where reliable engine performance is essential.

Manufactured to original equipment (OEM) size specifications, this cylinder liner ensures a direct replacement fit for engines requiring the 4D94 or 4D94-3 model series components. While primarily associated with Komatsu equipment, this part may also be compatible with other industrial machinery utilizing these specific engine platforms. We recommend verifying your engine model and existing part number against 6144-21-2211 to confirm compatibility before purchase.

Key Features & Benefits

• Precision Fitment: Machined to exact OEM size standards (6144-21-2211) for seamless installation in 4D94 and 4D94-3 engine blocks, reducing downtime.
• Enhanced Durability: Constructed from high-grade cast iron with superior wear resistance, extending the service life of your engine overhaul.
• Improved Performance: The precision-honed bore surface ensures optimal piston ring sealing, maximizing compression and fuel efficiency.
• Rigorous Quality Control: Each liner undergoes a machinery test report and outgoing video inspection to guarantee dimensional accuracy and structural integrity.
• Cost-Effective Solution: A competitively priced alternative that meets or exceeds OEM performance standards, offering excellent value for fleet maintenance.
• Versatile Application: Suitable for a wide range of heavy equipment including excavators, bulldozers, trucks, and buses powered by the Komatsu 4D94 series diesel engine.

Technical Specifications

OEM Cross-Reference

This cylinder liner is a direct replacement for the following OEM part numbers. Please cross-reference your existing part for verification:

• Komatsu OEM: 6144-21-2211
• Alternative Reference: 6144212211
• Engine Series: 4D94, 4D94-3

Note: This part is manufactured by, an aftermarket supplier specializing in Komatsu-compatible engine components. It is not an OEM Komatsu part.

Compatibility

This cylinder liner is specifically designed for the following engine models and applications. Fitment is inferred based on standard engine specifications:

• Engine Models: Komatsu 4D94, Komatsu 4D94-3
• Common Applications:
  • Excavators
  • Wheel Loaders
  • Forklifts
  • Bulldozers
  • Trucks & Buses

Global Supply & Distribution

We are a leading exporter of heavy machinery engine parts, serving a global B2B client base. Our supply chain is optimized for fast and reliable delivery to major industrial regions worldwide.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Australia, Japan, Singapore, Indonesia), Middle East (UAE, Saudi Arabia), Africa (South Africa, Nigeria), and South America (Brazil, Chile).
• Shipping Capabilities: We offer flexible logistics solutions including sea freight (FOB/CIF), air freight, and express courier (DHL, FedEx, UPS) to meet urgent demands.
• Ports of Export: Primarily shipped from Shenzhen, Guangzhou, and Shanghai ports to ensure efficient global transit.
• Trade Compliance: Our products are packaged and documented in full compliance with international trade standards for hassle-free customs clearance.

Quality Assurance

We are committed to delivering components that meet the rigorous demands of the heavy equipment industry. Our quality assurance process includes:

• Manufacturing Standards: Parts are produced in ISO 9001-certified facilities, ensuring consistent quality control throughout the production process.
• Testing Procedures: Each batch of cylinder liners undergoes a machinery test report to verify dimensional accuracy, hardness, and surface finish.
• Inspection: A video outgoing inspection is provided upon request, offering visual confirmation of part condition before shipping.
• Warranty: All products are backed by a 6-month warranty against manufacturing defects, providing peace of mind for your procurement.

FAQ

Q: How can I confirm that this cylinder liner (6144-21-2211) will fit my engine?
A: Please verify your engine model number (look for 4D94 or 4D94-3 on the engine data plate) and compare your existing part number to 6144-21-2211. This liner is designed to OEM specifications for these specific models. If your engine has been previously rebored to an oversize, this standard-size liner may not be suitable.

Q: What is the recommended installation procedure for this cylinder liner?
A: Installation should be performed by a qualified diesel mechanic. The cylinder bore in the engine block must be clean and free of debris. We recommend lightly lubricating the O-ring grooves and the outer surface of the liner before pressing it in. Ensure the liner is seated flush with or slightly below the top surface of the block as per the engine service manual.

Q: Can this liner be used with any piston ring set?
A: This liner is designed to work with the standard piston and ring set for the Komatsu 4D94/4D94-3 engine. For best performance and longevity, we recommend using a matched piston ring set that corresponds to the same OEM specifications. Using incorrect rings can lead to poor compression and oil consumption.