Cylinder Head Assembly 5272457 for Cummins B4.5 B6.7 ISB6.7 QSB6.7

The Cylinder Head Assembly 5272457 is a critical engine component designed for Cummins B4.5, B6.7, ISB6.7, ISBE, and QSB6.7 diesel engines. This complete cylinder head assembly is manufactured to OEM specifications to ensure proper airflow management, combustion chamber sealing, and valve train alignment under demanding diesel operating conditions.

Constructed from high-strength cast alloy and precision-machined for exact tolerances, this cylinder head assembly delivers excellent resistance to heat, pressure, and thermal cycling. It supports efficient intake and exhaust flow, helping maintain optimal combustion, fuel efficiency, and emissions performance. The robust design ensures long service life even in high-load, high-temperature applications common in commercial, industrial, and off-highway equipment.

A damaged or worn cylinder head can cause compression loss, coolant or oil leakage, poor engine performance, and increased emissions. Replacing it with the Cummins 5272457 cylinder head assembly restores proper engine function and reliability. This assembly is ideal for full engine rebuilds, major repairs, and preventative maintenance programs where OEM-level performance is required.

✔ PRODUCT FEATURES & COMPONENTS

• Complete cylinder head assembly

• Cummins part number: 5272457

• High-strength cast alloy construction

• Precision-machined combustion chambers and ports

• Designed for optimal airflow and combustion efficiency

• Excellent resistance to heat and pressure

• OEM-grade fit, finish, and performance

• Direct replacement for compatible Cummins engines

✅ ENGINE COMPATIBILITY

• Cummins B4.5

• Cummins B6.7

• Cummins ISB6.7

• Cummins ISBE

• Cummins QSB6.7

✅ VEHICLE & EQUIPMENT APPLICATIONS

• Commercial trucks and buses

• Construction and earth-moving equipment

• Agricultural machinery

• Industrial engines and power units

• Generator sets using Cummins diesel engines

✅ KEY FEATURES & BENEFITS

• Restores proper compression and combustion

• Improves airflow and engine efficiency

• Reduces risk of coolant and oil leaks

• Supports emissions compliance

• Designed for heavy-duty diesel service

• OEM-quality durability and reliability