Product Description
Genuine Cummins
Cummins 3959009 — Engine Oil Dipstick (Flat-Blade, 44.5")
MPN: 3959009 | Also Known As: oil level dipstick | Style: Flat-blade, ~44.5" length
Why This Part
- ✓ OE accuracy for proper 5.9L oil level readings.
- ✓ Direct-fit for 2003–2007 Ram 5.9L ISB (CR).
- ✓ Flat-blade 44.5" design matches factory spec.
- ✓ Durable handle and blade to resist heat/warp.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Engine oil level dipstick |
|---|---|
| OE Part # | 3959009 |
| Length / Style | ~44.5" flat-blade (factory style) |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2003–2007 | Ram 5.9L ISB (24V Common-Rail) | Ram 2500/3500 |
Notes: Designed specifically for 2003–2007 5.9L CR Rams. Always verify by VIN/ESN if components have been changed.
Often Paired With
- Dipstick Tube: Cummins 3957070 (’03–’07 5.9L)
- Fresh oil & filter after any oil system service
What’s In The Box
- (1) Genuine Cummins Engine Oil Dipstick (3959009)
- Dipstick tube sold separately (see “Often Paired With”).
Install Tips
- Route through the factory tube; ensure the handle seats fully.
- Warm engine, park level, and check oil per factory procedure.
- If readings seem off, inspect the tube and sealing grommet for damage.
FAQ
WILL THIS FIT MY 2003–2007 5.9L CUMMINS RAM?Yes—3959009 is the OE dipstick for 2003–2007 5.9L ISB common-rail Ram 2500/3500 (verify by VIN/ESN).
IS THIS THE FLAT-BLADE STYLE AND WHAT’S THE LENGTH?Correct—it’s the flat-blade design, about 44.5" in length, matching the factory spec.
DOES THIS INCLUDE THE DIPSTICK TUBE?No—the tube is separate. The common matching tube for ’03–’07 5.9L is Cummins 3957070.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3959009 for proper fit and accurate oil level readings.
WILL THIS FIT 6.7L TRUCKS?No—this listing targets 5.9L (’03–’07). 6.7L applications use different part numbers.
Product Videos
Custom Field
Vehicle Year 2003,2004,2005,2006,2007
Vehicle Make DODGE
ENGINE 5.9L
