Cummins cylinder liner C5318476 undertakes dual core functions in engine operation: As a precise guiding track for piston reciprocating movement, its inner wall smoothness directly affects piston ring sealing and movement resistance; meanwhile, as part of the combustion chamber, it must withstand high-temperature and high-pressure gas impact, and conduct heat to coolant through the outer wall to avoid local overheating.
The cylinder liner is made of high-strength alloy cast iron, formed by centrifugal casting process. The inner wall hardness reaches HB200-250, and the surface is treated with phosphating or chrome plating for wear resistance, with a wear rate of ≤0.02mm/1000 hours, compatible with Cummins ISD, QSD, 4B3.9 engine series. Its outer circle and cylinder block fit accuracy reaches IT7 grade, and the inner wall roundness error is ≤0.005mm, ensuring uniform clearance with the piston, reducing abnormal wear, and the service life can reach more than 15000 hours under normal working conditions.
As a professional supplier, Ningbo Qiuning Trading Co., Ltd. provides both original and aftermarket C5318476 cylinder liners. Original products strictly follow Cummins manufacturing specifications, using imported cast iron raw materials, suitable for heavy-duty continuous operation scenarios with outstanding long-term stability; Aftermarket products pass 800-hour bench tests, with key dimensions and wear resistance up to standard, priced at 50%-60% of the original, suitable for regular maintenance and customers with limited budgets.
During installation, attention should be paid to the interference fit between the cylinder liner and the cylinder block. It is recommended to use special tools for press fitting to ensure perpendicularity. We have sufficient inventory, supporting global delivery within 48 hours, and our technical team can provide compatible model inquiry and installation clearance guidance. Welcome to consult and purchase according to actual needs:
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4B3.9-G1,4BT3.9-G1,4BTA3.9-G2,6BT5.9-G1,6BTA5.9-G2,6CTA8.3-G2,6CTA8.3-G3,6LTAA8.9-G2
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