Product Description
Genuine Cummins
Cummins 3905801 — Oil Gauge Tube / Dipstick Tube (5.9L 12-Valve)
MPN: 3905801 | Also Known As: dipstick tube, oil level tube | Related: Tube End 3905802; Dipstick 3928740 (’94–’95), 3923128 (’96–’98)
Why This Part
- ✓ OE tube the dipstick rides in—restores accurate oil level readings.
- ✓ Direct-fit for 1994–1998 Ram 5.9L 12-valve.
- ✓ Designed to seal correctly with the tube end and block interface.
- ✓ Durable OE construction built to Cummins specs.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Oil Gauge Tube / Dipstick Tube |
|---|---|
| OE Part # | 3905801 |
| Qty Required | 1 per engine (sold individually) |
| Related Parts | Tube End 3905802 · Dipstick 3928740 (’94–’95) · Dipstick 3923128 (’96–’98) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–1998 | Ram 5.9L Cummins (12-Valve B5.9) | Ram 2500/3500 |
Industrial/Off-Highway: Common on B-Series (B3.9/B5.9, Euro 2 era). Always confirm by ESN.
Often Paired With
- Tube End / Joint: Cummins 3905802 (mates tube to block)
- Dipstick (’94–’95): Cummins 3928740
- Dipstick (’96–’98): Cummins 3923128
What’s In The Box
- (1) Genuine Cummins Oil Gauge Tube / Dipstick Tube (3905801)
- Tube end & dipstick sold separately (see “Often Paired With”).
Install Tips
- Inspect the tube end/joint and sealing surfaces; replace worn components.
- Seat the tube fully and verify the dipstick reads consistently on level ground.
- If readings seem off, inspect the dipstick part # for your model year.
FAQ
WILL THIS FIT MY 1994–1998 12-VALVE CUMMINS RAM?Yes—this is the OE dipstick tube for 1994–1998 Ram 2500/3500 with the 5.9L 12-valve Cummins (verify by VIN/ESN).
DOES THIS INCLUDE THE TUBE END OR DIPSTICK?No—order Tube End 3905802 separately. Use dipstick 3928740 (’94–’95) or 3923128 (’96–’98) as applicable.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3905801 built to factory specifications.
WILL THIS FIT 24-VALVE OR 6.7L TRUCKS?No—this listing targets 1994–1998 12-valve applications only.
CAN I USE THIS ON INDUSTRIAL B-SERIES ENGINES?Common on B3.9/B5.9 industrial variants; always confirm by Engine Serial Number (ESN).
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Product Reviews
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Oil dipstick tube
Worked perfectly without any issues, especially since it is a genuine cummins part!
