The cylinder liner is a crucial component in the construction of CAT diesel engines, directly influencing engine compression, heat dissipation, and internal wear. Whether you are repairing heavy construction equipment, mining machinery, or industrial diesel generators, choosing the right liner is essential for engine performance and reliability.
At Ningbo Qiuning Trading Co., Ltd., we proudly supply high-quality CAT cylinder liners in two categories:
Original Factory (OEM) Cylinder Liners:
These liners are manufactured according to Caterpillar’s official technical drawings and material standards. Every unit undergoes rigorous inspection to ensure concentricity, hardness, and resistance to deformation under thermal load. Ideal for professional rebuilders and clients who prioritize genuine engine performance and durability.
Subsidiary Factory (Aftermarket) Cylinder Liners:
A cost-efficient alternative for general maintenance and commercial fleets. Produced with strict dimensional tolerances and quality materials, our aftermarket liners meet or exceed industry standards. This option provides reliable service life and excellent compatibility, making it ideal for budget-conscious clients.
Key Features:
Excellent wear and heat resistance
Precise dimensional control for perfect piston-liner interaction
Suitable for both dry and wet cylinder configurations (depending on model)
Compatible with engines such as CAT 3304, 3306, C7, C9, 3406, C15, and more
These cylinder liners are widely used in applications including:
Excavators
Bulldozers
Dump trucks
Marine engines
Power generators
Whether you need just one piece or bulk orders, we provide fast global shipping and consistent after-sales support. Our products are exported to Southeast Asia, South America, the Middle East, Africa, and other regions.
We are committed to helping our customers reduce downtime, increase engine longevity, and maintain performance in the most demanding conditions.
📞 Contact Us
WeChat/WhatsApp: +8615888032469
E-mail: allen@perkins-rx.com
