
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Gear Cover Gasket Cummins 3815617 | C3815617, CU3815617, CUM3815617
Ensure a leak-free seal for your engine’s front gear assembly with this high-durability gear cover gasket. Engineered specifically for Cummins 6CT 8.3L engines, it prevents oil leaks and protects vital timing components.
Description
Reliable Sealing for Cummins 6CT 8.3L Engines
The Gear Cover Gasket 3815617 is a critical component designed to provide a secure, leak-proof seal between the front gear cover and the engine block. Engineered to withstand the demanding conditions of heavy-duty diesel applications, this gasket prevents oil loss, maintains optimal lubrication system pressure, and protects the timing gears from external contaminants.
Key Features & Benefits
- Precise Fitment: Specifically designed for Cummins 6CT 8.3-liter engines to ensure a perfect, direct-fit installation.
- Durable Construction: Manufactured from high-grade, oil-resistant materials that resist degradation from heat, pressure, and engine fluids.
- Leak Prevention: Effectively seals the front gear cover assembly, preventing costly oil leaks and keeping your engine bay clean.
- Engine Protection: Helps maintain proper lubrication system integrity, safeguarding vital timing and drive components from premature wear.
Product Specifications & Compatibility
- Compatible Engine Models: Cummins 6CT 8.3 / 6CT8.3 (primarily used on non-certified 8.3-liter C-series engines)
- Associated Cover Part Number: Designed for engines equipped with gear cover 3958112
- Interchangeable Part Numbers: 3815617, C3815617, CU3815617, CUM3815617
Please verify your engine model and existing part numbers prior to ordering to ensure exact compatibility.


