Product Description
Genuine Cummins
Cummins 3905802 — Oil Gauge Tube End (Dipstick Tube End)
MPN: 3905802 | Also Known As: oil gauge tube end, dipstick tube end, upper tube end | Pairs With: Oil Gauge Tube 3905801
Why This Part
- ✓ OE geometry for proper dipstick/tube seating and accurate oil-level readings.
- ✓ Direct-fit for 1994–1998 Ram 5.9L 12-valve (verify by VIN/ESN).
- ✓ Durable construction to resist heat, vibration, and corrosion.
- ✓ Restores factory seal and alignment at the tube end.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Oil gauge / dipstick tube end (upper end) |
|---|---|
| OE Part # | 3905802 |
| Quantity Required | 1 per engine (sold individually) |
| Common Pairing | Cummins oil gauge tube 3905801 (’94–’98 5.9L) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–1998 | Ram 5.9L Cummins 12-Valve (6BT) | Ram 2500/3500 |
Industrial/Off-Highway: Also used on select B-Series midrange applications (e.g., B3.9/4BT). Always confirm by ESN.
Often Paired With
- Oil Gauge Tube: Cummins 3905801 (’94–’98 5.9L 12V)
- Dipstick (common): Cummins 3928740 (’94–’95), 3923128 (’96–’98)
- Fresh oil & filter after any oil-system service
What’s In The Box
- (1) Genuine Cummins Oil Gauge Tube End (3905802)
- Tube and dipstick sold separately (see “Often Paired With”).
Install Tips
- Inspect tube end and seating surface; clean thoroughly before install.
- Ensure the tube is fully seated and secured to prevent leaks or false readings.
- Warm engine and verify proper oil level after installation.
FAQ
WILL THIS FIT MY 1994–1998 5.9L 12-VALVE RAM?Yes—3905802 is commonly used on 1994–1998 5.9L 12-valve Ram 2500/3500. Always verify by VIN/ESN.
IS THIS THE PIECE THE DIPSTICK TUBE SLIDES INTO?It’s the tube end (upper end) that interfaces with the dipstick/tube assembly to keep alignment and sealing correct.
WHAT TUBE PAIRS WITH THIS?Cummins oil gauge tube 3905801 is the common match on ’94–’98 5.9L 12V trucks.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3905802 with factory fit and materials.
DOES THIS ALSO FIT INDUSTRIAL B-SERIES?Yes—this tube end appears across various B-Series applications (e.g., B3.9/4BT). Confirm by ESN for non-automotive engines.
