Cummins
Lock nut for Cummins engines
This lock nut secures mechanical assemblies within Cummins engines to prevent loosening under vibration and dynamic loads. It is designed to maintain a firm connection in critical engine components.
Specifications
- Part number
- 3633479
- Brand
- Cummins
The lock nut 3633479 is a specialized fastener engineered to resist loosening caused by vibration and dynamic loads in heavy machinery engines. Unlike standard nuts, this component ensures a secure mechanical union in critical assemblies where constant movement could otherwise compromise the integrity of the engine system. It is designed to be used in various applications throughout the engine, including the engine block, exhaust manifolds, accessory brackets, and fuel injection systems.
This component is manufactured by Cummins for use across their range of diesel engines. The nut utilizes a locking mechanism to create friction against the bolt thread, ensuring that the fastener remains in place during operation. Proper installation of this specific nut is necessary to maintain the structural alignment and functional security of the engine components it supports.
Lock nuts serve as essential fasteners in industrial machinery, providing the necessary clamping force to keep assemblies together despite the high-frequency vibrations inherent in engine operation. By preventing the rotation of the nut on the bolt, these fasteners help avoid issues such as misalignment, fluid leaks, or the loosening of parts that could lead to further mechanical complications. Using the correct fastener ensures that the assembly meets the original design requirements for tension and stability.

