Rocker lever housing gasket for Cummins 6BTAA5.9-C178

The rocker lever housing gasket, part number 3630839, functions as a sealing component located at the top of the diesel engine. It creates a seal between the rocker lever housing and the cylinder head to prevent the leakage of lubricating oil that circulates through the valve train area. By maintaining this seal, the component helps ensure that oil pressure remains consistent and prevents external contamination of the engine environment.

This component is compatible with several Cummins engine models, including the 6BTAA5.9-C178, KTA38C-1050, QSM11-C335, and QSM19-C700. These engines are utilized in various heavy machinery and industrial crane applications. The gasket is manufactured to meet the specific dimensions and tolerances required for these engine configurations, ensuring a proper fit during installation.

Gaskets of this type are used to bridge the gap between two mating surfaces on an engine, compensating for minor surface irregularities. By compressing when the housing is bolted down, the gasket forms a barrier that contains fluids and gases within their respective passages, which is necessary for the clean and efficient operation of the valve train and the overall engine lubrication system.