Excavator 582-5311 5825311 Cylinder Block CAT C11 C13 Engine Inline 6 Cylinder

The 582-5311 (5825311) cylinder block is a premium core structural component tailor-made for CAT's C11 and C13 6-cylinder engines, widely applied in heavy-duty equipment such as excavators, loaders, and trucks. As the "foundation" of the engine, it integrates multiple functions: bearing the mechanical loads from combustion and crankshaft operation, accommodating key components including pistons, connecting rods, and camshafts, and serving as the carrier for oil passages and cooling channels. Manufactured in strict compliance with CAT's OEM standards, the block adopts QT450-10 nodular cast iron, which undergoes quenching and tempering processes to balance strength and toughness. The cylinder bore is finished by precision honing with a super-finish surface, ensuring optimal fit with piston rings to minimize friction and oil consumption. For C11 and C13 engines, the block features differentiated bore diameters and dimensional designs while maintaining consistent mounting interfaces, enabling seamless replacement without modifying the engine assembly structure. All oil passages and water jackets are pre-machined with high precision to ensure unobstructed fluid circulation, laying a solid foundation for the engine's stable and efficient operation.

The 582-5311 (5825311) cylinder block delivers outstanding and stable performance in various harsh working conditions, fully meeting the high-demand operation requirements of CAT C11/C13 engines. In load-bearing performance tests, it can stably withstand the maximum dynamic load of 90kN (C11) and 100kN (C13) generated by the engine's combustion process, with no deformation or micro-cracks detected after 10,000 cycles of fatigue testing. The ultra-precise cylinder bore reduces the friction power consumption of the piston assembly by 15%, directly improving the engine's power output—for C11 engines, the maximum power is increased by 5%, and for C13 engines, it is increased by 4%. In terms of thermal stability, when the engine runs at full load (2200rpm for C11, 2100rpm for C13) continuously for 6 hours, the cylinder block's surface temperature is maintained at 88-95℃, and the cooling system operates efficiently without pressure fluctuations. In the simulated mine and construction site durability test (alternating high and low temperatures, continuous vibration, dust erosion), the cylinder block operates stably for 10,000 hours, and the cylinder bore wear is only 0.03mm, far below the industry's 0.1mm wear limit. Additionally, its excellent sealing performance ensures no oil or coolant leakage, effectively avoiding faults such as reduced oil pressure and engine overheating.

 

 

 

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