C6.4 Cylinder Head Assembly 2977644 297-7644 for Caterpillar Excavator 320D Diesel Engine

Product Details

Product Overview

This C6.4 Cylinder Head Assembly, featuring OEM reference numbers 2977644 and 297-7644, is a precision-engineered component specifically designed for the Caterpillar C6.4 diesel engine. This engine is most commonly found powering the Caterpillar 320D excavator, a workhorse in the construction and earthmoving industry.

Manufactured to meet OEM size and performance specifications, this cylinder head assembly provides a direct replacement for worn or damaged units. It is a critical top-end engine part that ensures proper combustion chamber sealing, valve operation, and overall engine efficiency. While commonly associated with the 320D excavator, this component may also be suitable for other heavy equipment and industrial applications utilizing the C6.4 engine platform.

Key Features & Benefits

• Direct Fit Replacement: Engineered to OEM specifications (OEM Size) for a seamless, bolt-on installation on C6.4 engines, minimizing downtime.
• Precision Casting & Machining: Manufactured with high-quality materials and exacting tolerances to ensure a perfect seal and reliable long-term performance under high-stress conditions.
• Enhanced Durability: Built to withstand the extreme heat and pressure of diesel combustion, reducing the risk of cracking or warping common in inferior parts.
• Comprehensive Assembly: Supplied as a complete assembly, typically including valves, springs, seals, and guides, ready for installation.
• Rigorous Quality Control: Each unit undergoes a machinery test report and video outgoing inspection to verify critical dimensions and integrity before shipment.
• Global Supply Chain: Sourced from a reliable manufacturing hub in Guangdong, China, with a 6-month warranty for buyer confidence.

Technical Specifications

OEM Cross-Reference

This cylinder head assembly is a direct replacement for the following genuine Caterpillar part numbers:

• 297-7644 (Primary OEM Number)
• 2977644 (Alternate Format)

Note: Always verify your existing part number for exact compatibility. offers OEM service for custom specifications.

Compatibility

This cylinder head is specifically designed for the Caterpillar C6.4 diesel engine. It is most commonly used for the following applications:

• Excavators: Caterpillar 320D (Primary application)
• Construction & Industrial Equipment: Other heavy machinery powered by the C6.4 engine.
• Additional Applications: May also be suitable for gensets, agriculture, and marine applications using the C6.4 platform. Consult your engine serial number for confirmation.

Global Supply & Distribution

We provide a reliable global supply chain for heavy-duty diesel engine components. Our distribution network ensures fast and efficient delivery to major industrial centers worldwide.

• North America: Fast shipping to ports like Los Angeles, Houston, and New York.
• Europe: Reliable delivery to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct supply from our manufacturing base in Guangdong, China, to Singapore, Sydney, and Dubai.
• Middle East & Africa: Service to Jebel Ali, Dammam, and Durban.

We are experienced in international trade documentation and compliance, ensuring a smooth transaction for B2B buyers across all major markets.

Quality Assurance

Every cylinder head assembly is manufactured under strict quality control protocols. We ensure that each part meets or exceeds industry standards for performance and durability.

• Manufacturing Standards: ISO 9001 compliant production processes.
• Testing: Each assembly includes a Machinery Test Report and undergoes a Video Outgoing Inspection to verify fit, finish, and function.
• Warranty: All units are backed by a comprehensive 6-month warranty against manufacturing defects.
• Certification: Materials are sourced from certified foundries to ensure consistent quality and longevity.

FAQ

Q1: How do I confirm that this 297-7644 cylinder head will fit my engine?

This part is designed for the Caterpillar C6.4 engine, primarily in the 320D excavator. To confirm fitment, please check the casting number on your old cylinder head or your engine’s serial number (S/N) prefix. If your machine uses a C6.4 engine, this assembly is the correct specification. For non-standard applications, please contact our technical support with your engine details.

Q2: What is included in the cylinder head assembly?

The assembly is shipped as a complete unit. It typically includes the cast cylinder head body, intake and exhaust valves, valve springs, valve guides, and valve stem seals. It is ready for installation after transferring your existing fuel injectors and glow plugs. We recommend checking the included components upon arrival.

Q3: What is the recommended installation procedure for this cylinder head?

Installation requires a qualified diesel mechanic. Key steps include thoroughly cleaning the engine block surface, using new head gaskets and bolts (not included), and tightening the head bolts to the precise torque specifications and sequence for the C6.4 engine. It is critical to replace the engine oil and coolant after installation to prevent contamination from old fluids.