Kolbenschmidt C4.4 Liner Kit 3109905 & Piston Liner Kit 2767476 for Cat Engine

Product Details

Product Overview

This premium Liner Kit set combines the genuine Kolbenschmidt 3109905 cylinder liner with the corresponding 2767476 piston liner kit, specifically engineered for the Caterpillar (CAT) C4.4 diesel engine. As a direct replacement for the 3109905 and 2767476 part numbers, this assembly is critical for restoring compression, reducing oil consumption, and ensuring optimal combustion efficiency in your heavy machinery.

Manufactured to OEM specifications, this kit is commonly used for the CAT C4.4 engine found in a range of excavators, backhoe loaders, and industrial equipment. While the C4.4 is a widely recognized platform, we recommend verifying your engine serial number against our specifications to confirm exact compatibility.

Key Features & Benefits

• OEM-Grade Fitment: Precision-machined to match the exact dimensions of the CAT C4.4 engine block, ensuring a perfect seal and preventing coolant or gas leakage.
• Durable Ductile Iron Construction: The cylinder liner is manufactured from high-strength ductile iron with a hardened bore surface, providing exceptional wear resistance against piston ring friction.
• Complete Kit Efficiency: Includes both the cylinder liner (3109905) and the piston liner assembly (2767476), simplifying your overhaul process and ensuring component compatibility.
• Reduced Downtime: Direct bolt-in design minimizes installation time, allowing your excavator or industrial engine to return to service faster.
• Enhanced Heat Dissipation: Optimized wall thickness and material composition improve heat transfer, reducing thermal stress on the engine block during high-load operations.
• Strict Quality Control: Every unit undergoes rigorous dimensional and surface finish inspection to guarantee 100% new condition and reliable performance.

Technical Specifications

OEM Cross-Reference

This kit directly replaces the following original equipment manufacturer (OEM) part numbers. Use these references to verify compatibility with your existing engine:

• Caterpillar: 3109905 (Cylinder Liner), 2767476 (Piston & Liner Assembly)

Note: This is not a generic aftermarket part; it is sourced from the same supply chain as OEM components.

Compatibility

This Liner Kit is specifically designed for the Caterpillar C4.4 diesel engine. It is commonly used for rebuilding or overhauling the following equipment types where the C4.4 engine is installed:

• Excavators: CAT 303.5E, 304E, 305.5E, 306E series
• Backhoe Loaders: CAT 428F, 432F, 434F
• Industrial Engines: C4.4 (ACERT technology)

Important: Always cross-reference your engine serial number with the part numbers 3109905 and 2767476 to ensure correct fitment. Variations in engine block configurations may exist.

Global Supply & Distribution

We maintain a robust global logistics network to support B2B buyers worldwide. Our standard shipping options include:

• North America: Delivery to major ports (Los Angeles, Houston, New York) and inland hubs within 7-12 working days via air or express freight.
• Europe: Fast shipping to Rotterdam, Hamburg, and Antwerp, with customs clearance support for EU countries.
• Asia-Pacific: Direct container shipping to Shanghai, Singapore, and Sydney, with competitive LCL rates for bulk orders.
• Middle East & Africa: Reliable service to Dubai, Jeddah, and Mombasa, with options for door-to-door delivery.

We specialize in international trade compliance, providing all necessary export documentation (commercial invoice, packing list, certificate of origin) to facilitate smooth customs clearance.

Quality Assurance

Every component in this Liner Kit is manufactured in an ISO 9001:2015 certified facility. Key quality measures include:

• Material Certification: Ductile iron liners are tested for hardness and tensile strength.
• Dimensional Accuracy: Bore diameter, flange height, and wall thickness are verified using CMM (Coordinate Measuring Machine) equipment.
• Surface Finish: Honing process ensures a cross-hatch pattern for optimal oil retention and ring seating.
• Warranty: Backed by a 3-month warranty against manufacturing defects. After-warranty online support is available for technical inquiries.

FAQ

Q1: Is this kit a direct replacement for my CAT C4.4 engine, or do modifications need to be made?

This kit is designed as a direct replacement. The 3109905 liner and 2767476 piston assembly match the factory specifications for the C4.4 engine block. No machining or modification is required. However, we recommend thoroughly cleaning the cylinder block bore and replacing associated seals (like O-rings) during installation to ensure a proper seal.

Q2: What is the difference between the 3109905 liner and the 2767476 piston liner kit?

The 3109905 refers specifically to the cylinder liner (the sleeve that fits into the engine block). The 2767476 is the piston liner kit, which typically includes the piston, piston rings, and wrist pin. Together, they form a complete overhaul solution. You need both parts to properly rebuild a single cylinder on the C4.4 engine.

Q3: Can I use this kit in a marine or generator application with a C4.4 engine?

Yes, the C4.4 engine is used in marine propulsion and generator sets. However, marine and generator applications often have different cooling system requirements. While the mechanical dimensions of this liner kit are identical, ensure your application has adequate coolant flow and that the liner’s cooling jacket is compatible with your specific engine block variant. We advise consulting your engine’s service manual for specific cooling system specifications.