Product Description
Cummins 3918585 OEM Turbo Oil Drain Tube (Turbocharger Oil Drain Connection) – Ram 5.9L (1994–2002)
The Cummins 3918585 OEM Turbo Oil Drain Tube is a genuine Cummins replacement component designed to return oil from the turbocharger back to the engine crankcase on 1994–2002 Dodge Ram 5.9L Cummins diesel engines. This OE-formed steel drain tube provides the correct oil return path required for proper turbocharger lubrication, helping prevent oil leaks, smoking, turbo seal damage, and premature turbocharger failure.
Whether you're replacing a leaking oil drain tube during a turbocharger installation or restoring factory oil return plumbing on your 12-valve or 24-valve Cummins, the genuine Cummins 3918585 delivers OEM fitment, reliability, and long-term durability. Designed for use with factory HX35 and HY35 turbochargers, this direct-fit replacement helps maintain proper oil drainage and turbocharger performance.
Features
- Genuine Cummins OEM turbo oil drain tube
- Direct replacement for damaged, corroded, or leaking drain tubes
- OE-formed steel construction for durability and heat resistance
- Returns turbocharger oil safely back to the crankcase
- Helps prevent turbo seal failure and oil leakage
- Designed for factory HX35 and HY35 turbocharger applications
- Maintains proper turbocharger oil return flow
- OEM fit and factory-style installation
- Ideal for turbocharger replacement or engine restoration projects
Fitment
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-Valve
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-Valve
- Factory HX35 turbocharger applications
- Factory HY35 turbocharger applications
- 1994–2002 Ram 2500 and Ram 3500 diesel trucks
Note: Always verify fitment using your VIN or Cummins Engine Serial Number (ESN), especially on modified vehicles or trucks with non-factory turbocharger systems.
What's Included
- Cummins 3918585 OEM Turbo Oil Drain Tube
Specifications
- Manufacturer: Cummins
- Part Number: 3918585
- Product Type: Turbocharger Oil Drain Connection
- Function: Returns oil from turbocharger to engine crankcase
- Construction: OE-Formed Steel Tube
- Engine Compatibility: 5.9L Cummins (1994–2002)
- Turbocharger Compatibility: HX35 and HY35 Factory Turbochargers
- Vehicle Compatibility: Ram 2500 / 3500 Diesel Trucks
- Application: OEM Turbocharger Oil Return System
- Installation Type: Direct Replacement
Cross Reference Numbers
3918585, 3903744, 3286499, 3923045, CUM3918585
FAQ
What does the Cummins 3918585 turbo oil drain tube do?
The 3918585 drain tube returns engine oil from the turbocharger back into the crankcase. Proper oil drainage is critical for turbocharger reliability and seal life.
Will this fit both 12-valve and 24-valve Cummins engines?
Yes. This OEM drain tube is commonly used on 1994–2002 5.9L Cummins engines, including both 12-valve and 24-valve applications equipped with factory HX35 or HY35 turbochargers.
Does this include the turbo oil drain hose?
No. The drain hose is sold separately. The commonly associated Cummins drain hose part number is 3286499.
Should I replace the drain elbow during installation?
If the drain elbow is damaged, leaking, or corroded, replacement is recommended. The commonly associated Cummins drain elbow is part number 3903744.
Can a damaged oil drain tube cause turbocharger problems?
Yes. Restrictions or leaks in the oil return system can contribute to oil leakage, smoking, excessive crankcase pressure, and turbocharger seal damage.
Is this a genuine Cummins OEM part?
Yes. Part number 3918585 is a genuine Cummins OEM replacement component designed to meet original factory specifications.
