Product Description
Cummins 3934396 OEM Vacuum Pump Oil Supply Line (Pump to Engine) – Ram 5.9L 1998.5–2002
The Cummins 3934396 OEM Vacuum Pump Oil Supply Line is a genuine Cummins replacement oil feed line designed to supply engine oil from the vacuum pump to the engine on 1998.5–2002 Dodge Ram trucks equipped with the 5.9L 24-Valve Cummins diesel engine. Manufactured to original equipment specifications, this line helps ensure proper lubrication, reliable operation, and long service life for the vacuum pump system.
Over time, factory oil supply lines can become damaged, corroded, restricted, or develop leaks that may affect vacuum pump performance and engine reliability. Replacing a worn or leaking oil line with a genuine Cummins OEM component helps restore proper oil flow while maintaining factory fitment and durability.
Features
- Genuine Cummins OEM replacement component
- Direct-fit vacuum pump oil supply line
- Transfers engine oil between vacuum pump and engine
- Designed to meet original factory specifications
- Helps maintain proper vacuum pump lubrication
- Durable steel line construction
- Factory-style bends and fittings for proper installation
- Restores reliable oil flow to the vacuum pump system
- Ideal replacement for damaged or leaking factory lines
- Engineered for long service life and dependable performance
Fitment
- 1998.5 Dodge Ram 2500 5.9L Cummins 24-Valve Diesel
- 1998.5 Dodge Ram 3500 5.9L Cummins 24-Valve Diesel
- 1999 Dodge Ram 2500 5.9L Cummins 24-Valve Diesel
- 1999 Dodge Ram 3500 5.9L Cummins 24-Valve Diesel
- 2000 Dodge Ram 2500 5.9L Cummins 24-Valve Diesel
- 2000 Dodge Ram 3500 5.9L Cummins 24-Valve Diesel
- 2001 Dodge Ram 2500 5.9L Cummins 24-Valve Diesel
- 2001 Dodge Ram 3500 5.9L Cummins 24-Valve Diesel
- 2002 Dodge Ram 2500 5.9L Cummins 24-Valve Diesel
- 2002 Dodge Ram 3500 5.9L Cummins 24-Valve Diesel
Note: This oil supply line connects the vacuum pump to the engine and is designed for OEM replacement applications. Always verify part number 3934396 and vehicle application before ordering.
What's Included
- Cummins 3934396 Vacuum Pump Oil Supply Line
Specifications
- Manufacturer: Cummins
- Part Number: 3934396
- Product Type: Vacuum Pump Oil Supply Line
- Location: Pump to Engine
- Material: Steel Line Construction
- Fitment: 1998.5–2002 Dodge Ram 5.9L Cummins
- Engine Compatibility: 5.9L 24-Valve Cummins Diesel
- Installation Type: Direct Replacement
- OEM Replacement: Yes
- Application: Vacuum Pump Lubrication System
Cross Reference Numbers
3934396
FAQ
What does the Cummins 3934396 oil line do?
This line supplies engine oil between the vacuum pump and engine, helping provide proper lubrication for vacuum pump operation.
What vehicles use Cummins part number 3934396?
This oil supply line is commonly used on 1998.5–2002 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L 24-Valve Cummins diesel engine.
Why should I replace a leaking oil supply line?
A leaking or damaged oil line can reduce lubrication, create oil leaks, and potentially affect vacuum pump reliability and overall engine operation.
Is this a genuine Cummins OEM part?
Yes. Cummins 3934396 is a genuine OEM replacement component engineered to factory specifications.
Does this line include installation hardware?
Refer to the product contents and vehicle requirements. Additional seals, fittings, or hardware may be required depending on the condition of existing components.
Will this fit all 5.9L Cummins engines?
No. This line is specifically designed for 1998.5–2002 5.9L 24-Valve Cummins applications. Always verify fitment before ordering.
