Rocker Housing Gasket Cummins 3963379 | 3955109, 1706193, 71-11226-00, VS50419

Product Overview

The Cummins 3963379 Rocker Housing Gasket (also known as a rocker box gasket or rocker lever cover gasket) is a critical sealing component designed for heavy-duty diesel engines. Positioned between the rocker lever housing and the cylinder head, this gasket ensures a secure, leak-free seal that prevents engine oil from escaping and keeps contaminants out of the valvetrain assembly.

Key Features & Benefits

• Leak Prevention: Engineered to withstand high temperatures and pressures, preventing oil leaks and maintaining clean engine operation.
• Valvetrain Protection: Helps maintain stable internal pressure within the rocker housing, ensuring proper lubrication of the rocker arms and valve components.
• Durable Construction: Manufactured from premium, high-grade materials to resist degradation from engine oil, heat, and vibration.
• Precise Fitment: Designed to exact specifications for a direct-fit replacement, reducing installation time and ensuring long-term reliability.

Applications & Compatibility

This rocker housing gasket is primarily used on Cummins ISB and QSB 6.7-liter engines (including EPA13 models), as well as 5.9L and 6.7L Cummins engines found in Dodge Ram 2500, 3500, 4500, and 5500 trucks (model years 2003–2018).

Technical Specifications

• Part Number: 3963379
• Brand: Cummins
• Compatible Engine Models: ISB 6.7, QSB 6.7, 5.9L Cummins (24V)