Block Cylinder For Cummins 6CT | 3939313 3970752 3971386 4089241 3939311

The Block Cylinder for Cummins 6CT serves as a durable foundation for the engine’s inline six-cylinder design, with part numbers like 3939313, 3970752, 3971386, 3971387, 4089241, and 3939311. This bare cylinder block supports high-performance operations in demanding environments. It ensures structural integrity under extreme pressures and temperatures.

Key Features:

-> High-strength cast iron construction provides exceptional durability and heat dissipation for prolonged engine life.

-> Precision-machined surfaces accommodate removable wet liners, enabling cost-effective rebuilds and maintenance.

-> The design supports turbocharged configurations with one thermostat housing and 38mm sliding tappets for reliable valve operation.

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Technical Specifications

Usage:

Install the block during full engine rebuilds or replacements in Cummins 6C, 6CT, and 6CTA8.3 variants used in marine vessels, excavators, generators, and industrial equipment. Begin by verifying compatibility with OEM part numbers, then clean mating surfaces and torque main bearing caps to manufacturer specs using a calibrated wrench. Pair with forged crankshafts and cylinder heads for optimal alignment, followed by pressure testing to confirm leak-free assembly.