Cummins Cylinder Liner Product Portfolio

Introduction

The Cummins cylinder liner series is engineered to meet demanding engine performance requirements in harsh operating conditions, covering a wide range of applications from construction machinery to heavy-duty mining equipment and power generation units. Utilizing high-strength alloy cast iron and high-boron alloy cast iron, combined with wet-type structural designs, laser honing, and surface hardening processes, this series significantly enhances heat dissipation, wear resistance, and lubrication efficiency. Whether for the classic NT855 and 6CT series or the high-output KTA19, KTA38, and KTA50 series, every liner strictly adheres to Cummins global quality standards, ensuring superior reliability and extended service life in extreme environments.

NT855 Cylinder Liner

Designed for Cummins NT855 series engines, the NT855 liner is widely compatible with mainstream construction machinery such as Shantui TY230/TY160 and Yishan TY200. Manufactured from high-strength alloy cast iron compliant with GB/T1150-2010 standards, its wet-type design improves heat dissipation efficiency by over 30% and wear resistance by 50% compared to conventional solutions. Key part numbers include 3801826-10 and 3055099, with a bore × stroke of 102mm × 120mm, making it an ideal choice for heavy-duty construction equipment maintenance.

6CT Cylinder Liner

The 6CT liner is designed for Cummins 6CT8.3 series engines, specifically optimized for 2019 MT/manual transmission vehicle models. The inner wall features chrome plating or laser quenching treatment to form a high-hardness, low-friction surface layer that significantly reduces wear. The unique cross-hatch texture promotes uniform oil retention, ensuring silky-smooth lubrication, effectively extending the engine overhaul interval and guaranteeing stable operation under medium-speed conditions.

KTA19 Cylinder Liner

The KTA19 liner serves Cummins KTA19 series engines (including KTA19-M, KTA19-C600, etc.), widely used in Belaz 75473 mining trucks and large-scale power generation units. With a 19-liter displacement and 159mm × 159mm bore × stroke, it covers a power range of 272-522kW. Manufactured from high-strength alloy cast iron meeting Cummins global quality certification standards, available in part numbers 4024767 and 4024767-10, it is built for high-load continuous operation, delivering superior power support.

KTA38 Cylinder Liner

The KTA38 liner is compatible with Cummins KTA38 series engines (KTA38-C, KTA38-M, etc.), structurally optimized for V12 configuration. Made of high-boron alloy cast iron, it offers exceptional wear and heat resistance. The inner wall undergoes laser honing to create a precision oil-retention cross-hatch pattern, ensuring adequate lubrication and thermal balance in high-power-density V-type layouts. Key part numbers include 3645790 and 3055099, serving as a core component for heavy industrial power.

KTA50 Cylinder Liner

The KTA50 liner is a core component for Cummins KTA50 series engines (KTA50-GS8, KTA50-C2000, KTA50-G3, etc.), suitable for 1000-ton class mining trucks, large marine vessels, and premium power generation units. As a critical part of the 50-liter V16 engine, it utilizes high-boron alloy cast iron with extreme wear resistance and thermal shock resistance. Available in part numbers 3645790 and 4024767, it is designed for extreme heavy-duty and continuous high-load conditions, ensuring long-term stability of the power system.

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