
Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Bypass Valve Cummins 3934410 | 3919015, 3920326, 3923477, 3934278
Ensure optimal oil pressure and flow regulation in your heavy-duty engine with this premium Cummins bypass valve. Engineered for durability and a precise fit, it provides reliable protection against pressure spikes.
Description
Keep Your Engine Running Smoothly with the Cummins 3934410 Bypass Valve
The Cummins 3934410 bypass valve is a critical component of your engine’s lubrication system, designed to regulate oil pressure and flow. Engineered to meet rigorous standards, this bypass valve ensures that your engine maintains optimal oil pressure, protecting vital internal components from wear and damage caused by pressure fluctuations.
Key Features & Benefits
- Direct Replacement: Designed as a direct fit for a faulty stock bypass valve, ensuring hassle-free installation.
- Superior Durability: Manufactured with advanced technology and high-grade materials to withstand extreme operating conditions.
- Proven Performance: Tested in real-world environments to deliver market-leading reliability and radial strength.
- Precise Fitment: Engineered by experienced parts specialists to guarantee seamless integration and restored functionality.
Engine Compatibility
This bypass valve is widely used in heavy-duty Cummins diesel engines, including:
- Cummins 6BT 5.9
- Cummins 6CT 8.3
- Cummins ISC 8.3
- Cummins ISL 8.9
Please verify your original part number or consult with our technical team before ordering to ensure correct fitment for your specific engine configuration.



