Cummins ISF3.8 Cylinder Block

The Cummins ISF3.8 cylinder block is the foundational core component for the ISF3.8 light-duty diesel engine, widely matched to light trucks, pickup trucks, delivery vans and small construction equipment. It satisfies fleet maintenance and aftermarket replacement requirements for Euro III/Euro IV/Euro V ISF3.8 power units.

Developed from Cummins mature light-duty engine platform, this cylinder block adopts high-strength cast iron casting technique. Optimized cooling water channels and lubricating oil passages promote efficient heat dissipation and smooth oil circulation, minimizing component wear and ensuring stable continuous operation under medium loads.

Product Advantages

Robust Structural Durability

• High-strength cast iron raw material, strong deformation resistance under frequent start-stop and variable load conditions
• Optimized casting structure to reduce internal casting defects
• High-precision machining mating surfaces to guarantee assembly precision

Optimized Cooling & Lubrication

• Reasonably arranged cooling galleries to achieve balanced temperature distribution and prevent overheating
• Smooth internal oil passages to maintain stable lubrication of crankshaft, cylinder liner and moving assemblies
• Effectively lowers friction loss and extends service life of matching parts

Good Aftermarket Compatibility

• Strictly consistent with original size standards, direct replacement installation
• Multiple available OE numbers: 5256400, 5306414, 5271867, 5289698
• Widely applicable for light cargo vehicles, passenger vans and mini engineering machinery

Technical Specifications