This Cummins ISF 3.8 cylinder head is engineered as a direct replacement for OEM 5271866. It is designed for medium-duty diesel applications where durability, sealing stability, and dimensional accuracy are critical.

The product is available in complete and bare configurations, allowing flexibility for engine rebuilders, fleet maintenance operators, and professional diesel workshops.

Technical Specifications

OEM & Cross Reference

This cylinder head replaces and is interchangeable with the following Cummins OEM numbers:

• 5271866

• 5307155

• 5264129

Additional OEM references can be confirmed based on the engine serial number.

Product Configuration Options

Complete Cylinder Head

• Supplied with valves, springs, guides, and seals pre-installed

• Minimizes installation time and reduces workshop labor

• Suitable for fleet overhaul and time-sensitive repair projects

Bare Cylinder Head

• Supplied without valve train components

• Intended for rebuilders reusing existing internal parts

• Ideal for controlled engine remanufacturing processes

Application Scenarios

• Medium-duty trucks equipped with Cummins ISF 3.8 engines

• Commercial diesel vehicles

• Engine rebuilding and remanufacturing workshops

• Fleet maintenance and scheduled overhaul programs

Product Advantages

• Precision-machined gasket and combustion surfaces

• Stable casting structure for thermal and mechanical durability

• Factory-tested valve seat accuracy (complete version)

• Designed for long-term and high-mileage operation

Quality Control

Each ISF 3.8 cylinder head undergoes standardized inspections, including:

• Casting defect inspection

• Machining tolerance verification

• Valve seat concentricity and sealing checks (complete version)

All inspections are performed to ensure compatibility with original Cummins engine specifications.

Ordering Information

• MOQ: Available upon request

• Lead Time: Standard production lead time applies

• Packaging: Export-grade protective packaging

• Bulk Orders: Long-term supply and volume pricing supported

Contact & Sales Support

For pricing, technical confirmation, or procurement inquiries:

• Website: www.volgenpower.com

• Email: [email protected]

• 24/7 Support: +86 18827435225