Cummins Full Series Engine Cylinder Head Details

Product Overview

The Cummins full series cylinder heads cover mainstream models including 6CT, M11, K19, K38, K50, and NT855, suitable for commercial vehicles, construction machinery, generator sets, and marine power applications. Depending on the model, cylinder heads are available in monolithic (one piece covering all cylinders) and split (two cylinders per head) structures. All integrate intake/exhaust passages, combustion chambers, and cooling water channels. Through optimized air passage design and four-valve layout, they achieve full fuel combustion and efficient power output.

Detailed Model Introduction

6CT Series:

Commercial & Construction Power

Specially designed for 6CT 8.3L diesel engines, compatible with mainstream commercial vehicles like Dongfeng Kinland and Shaanxi Delong, as well as various construction machinery. Adopts one-piece casting process, reducing failure rate by over 30% compared to split heads. Rated power range: 180-260 HP.

Reference Part Numbers

3973493, 3936152, 3936180

M11 Series: Fully ElectronicHeavy-Duty Flagship

Designed for M11 fully electronic diesel engines (ISM11/QSM11), widely used in heavy-duty trucks (Shaanxi Delong, Auman) and construction machinery (XCMG excavators, Sany rotary drilling rigs). Monolithic structure with excellent sealing, supporting continuous heavy-duty operation.

Reference Part Numbers

TBD by model

K19 Series:

High-Horsepower Backbone

Developed for high-horsepower K19 diesel engines, compatible with KTA19-M500 generator sets, KTA19-C600 construction machinery, and marine power equipment. One-piece casting with integrated cooling channels effectively lowers combustion chamber temperature, ensuring heavy-load operation.

Reference Part Numbers

TBD by model

K38 Series: V12 High Power

Designed for high-power V-type K38 diesel engines, compatible with KTA38-C1050 mining excavators, KTA38-M2 marine power units, and stationary generator sets. Monolithic structure increases air intake by 20% and cuts fuel consumption by 8%. Rated power: 365-700 HP.

Reference Part Numbers

3646323, 3646326

K50 Series:

Ultra-Heavy Duty Power

Specially designed for flagship K50 high-power diesel engines, compatible with KTA50-C2000 mining engines, KTA50-GS8 generator sets, and large marine equipment. One-piece casting reduces failure rate by over 30%, ensuring stable power output of 1000-2000 kW.

Reference Part Numbers

3648602, 4955242

NT855 Series: Classic Split Design

Designed for high-horsepower NT855 diesel engines, compatible with Shantui TY230 bulldozers, Yishan TY200 bulldozers, and mining equipment. Adopts unique split structure (two cylinders per head), combining the sealing of integrated heads with the maintenance convenience of single-piece heads, significantly boosting low-speed torque.

Reference Part Numbers

4296715-10, 3055099

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