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Oil Seal Cummins 3968563 | 4982415
Prevent critical oil leaks and maintain engine lubrication integrity with this durable Cummins rotary shaft seal designed for B and F series engines.
Description
High-Durability Engine Oil Seal
The Cummins 3968563 Oil Seal is a precision-engineered rotary shaft seal designed to maintain the integrity of your engine’s lubrication system. By creating a secure barrier between rotating and stationary components, this seal effectively prevents oil leakage and blocks external contaminants from entering the engine, ensuring smooth operation and long-term reliability.
Key Features and Benefits
- Leak Prevention: Specifically designed to contain oil within the engine’s rotating assemblies, such as the flywheel housing and crankshaft areas.
- Robust Construction: Manufactured with high-grade rubber and metal components to withstand extreme thermal cycles and mechanical friction.
- Engine Efficiency: Maintains proper lubrication levels, reducing wear on critical internal components and extending engine life.
- Versatile Application: Frequently utilized in flywheel housings, rear covers, and lower engine gasket sets.
Engine Compatibility
This oil seal is compatible with a wide range of Cummins diesel engines, including:
- B Series: B4.5, B5.9, B6.7 (including CM2350 and CM2670 variants)
- F Series: F3.8, F4.5
- ISB/ISD Series: ISB3.9, ISB4.5, ISB5.9, ISB6.7, ISD4.5
- ISBE Series: ISBE CM2150, CM800, CM850


