Product Description
CUMMINS 3918585 OEM TURBO OIL DRAIN TUBE – RAM 5.9L (1994–2002)
Restore proper turbocharger oil return flow with the genuine CUMMINS 3918585 OEM Turbo Oil Drain Tube. This OE-formed steel tube returns hot engine oil from the turbocharger back into the crankcase on 1994–2002 5.9L Cummins engines. A damaged, bent, or leaking oil drain tube can cause turbo seal failure, oil leaks, smoking, and crankcase pressurization—making this component critical for long-term turbo reliability.
The 3918585 drain tube works with stock HX35/HY35 turbos and installs using factory-style hardware. When replacing turbocharger oil plumbing, pair this tube with the correct upper and lower sealing components, including the CUMMINS 3286499 turbo oil drain hose and the CUMMINS 3903744 drain elbow for a leak-free OE configuration.
Key Features
- Genuine Cummins OEM oil drain tube for precise fitment.
- Direct replacement for worn or corroded turbo oil return plumbing.
- Formed steel construction for proper oil flow and heat resistance.
- Compatible with factory HX35 / HY35 turbocharger configurations.
- Ensures correct crankcase oil return velocity to protect turbo seals.
Fitment Details
- Engine: 5.9L Cummins (12-valve 1994–1998, 24-valve 1998.5–2002)
- Turbo: HX35, HY35, stock-style turbochargers
- Vehicles: 1994–2002 Dodge Ram 2500/3500
Always confirm by VIN/ESN due to variations in turbo configuration and model-year transitions.
Cross-Reference & Compatible Cummins Parts
For a complete OE-style turbo lubrication system, pair CUMMINS 3918585 with these verified Cummins components:
- CUMMINS 3286499 OEM TURBO OIL DRAIN HOSE – 5.9L CUMMINS (1989–2004)
- CUMMINS 3903744 OEM TURBO OIL DRAIN ELBOW – 5.9L CUMMINS
- VIEW ALL CUMMINS OEM PARTS
Common cross-reference numbers: 3918585, 3903744 (lower elbow), 3286499 (drain hose), 3923045 (seal reference).
Installation Notes
- Replace seals and gaskets whenever servicing the turbo oil drain path.
- Ensure the tube seats fully in both the turbo and the lower drain elbow.
- Avoid bending the tube as it may restrict oil flow and damage turbo seals.
- Inspect the crankcase port for carbon buildup before installation.
Specifications for cummins 3918585
| Attribute | Value |
|---|---|
| Brand | Cummins (Genuine OEM) |
| Cummins Part Number | 3918585 |
| Function | Turbocharger oil drain return tube (rigid) |
| Engine Compatibility | 5.9L Cummins (1994–2002) |
| Vehicle Fitment | 1994–2002 Ram 2500 / 3500 with HX35/HY35 turbos |
| UPC | 193468533929 |
| GTIN | 193468533929 |
| Shipping Weight | Approx. 0.45 lb |
| E-Codes | Used on light-duty B-series applications; verify per VIN/ESN |
| Prop 65 Warning | WARNING: This product may expose you to chemicals known to the State of California to cause cancer and reproductive harm. Visit www.P65Warnings.ca.gov. |
| Country of Origin | As labeled by Cummins (varies by production batch) |
Frequently Asked Questions
WILL THIS FIT BOTH 12-VALVE AND 24-VALVE 5.9L CUMMINS?
Yes. CUMMINS 3918585 is used on 1994–2002 5.9L Cummins engines equipped with HX35/HY35 turbochargers. Always verify fitment by VIN/ESN.
DOES THIS INCLUDE THE RUBBER DRAIN HOSE?
No. The drain hose is sold separately as CUMMINS 3286499.
SHOULD I REPLACE THE DRAIN ELBOW TOO?
If the lower elbow is corroded or leaking, replace it with CUMMINS 3903744.
CAN A BENT DRAIN TUBE DAMAGE MY TURBO?
Yes. Any restriction in oil return flow can cause turbo seal failure. Always replace a tube that is bent or dented.
IS THIS AN OEM CUMMINS PART?
Yes — this is a genuine Cummins product sourced through CPP Diesel.
