Product Description
Interstate-McBee M-4076930 Oil Pressure Switch – 03–07 5.9L Cummins (Aftermarket Replacement)
Direct-fit oil pressure switch for 2003–2007 Dodge Ram 2500/3500 with the 5.9L Cummins (24-valve common-rail). Restores accurate oil-pressure signaling to the instrument cluster/ECM for proper warnings and engine protection. Sold individually.
- Direct replacement: Built to OE form, fit, and function for a hassle-free install.
- Reliable sealing: Designed for the factory port; no adapters required.
- Durable construction: Quality materials resist heat, vibration, and oil contamination.
- Value: Interstate-McBee quality at a cost-effective price.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4076930 |
| OEM Reference | Cummins 4076930 |
| Component Type | Engine oil pressure switch |
| Sold As | Each (1 switch) |
| Position | Engine block / oil gallery port (location varies by engine) |
What’s Included
- (1) Oil pressure switch, P/N M-4076930
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge Ram 2500/3500 5.9L Cummins (24-valve common-rail)
- Model Years: 2003–2007
- Additional B-Series applications where Cummins 4076930 is specified (confirm by ESN).
Recommended/Related Parts
- Oil filter and fresh engine oil (for service intervals)
- Replacement pigtail/connector (if the original harness end is damaged)
- Dielectric grease and appropriate thread sealant (if required by service procedure)
Install Notes
- Disconnect the battery before servicing engine electrical components.
- Clean the port and surrounding area to prevent debris from entering the oil passage.
- Use an appropriate thread sealant if specified by your service manual; avoid excessive sealant and do not use PTFE tape that can insulate terminals or shed into the oil system.
- Torque to the service-manual specification; do not overtighten.
- After installation, verify there are no leaks and confirm correct oil-pressure indication.
Why Buy From CPP Diesel
- ESN-verified fitment help from diesel specialists
- Fast shipping, easy returns, competitive pricing
- Deep inventory of complementary B-Series maintenance parts
FAQ
Will this fit my 2003–2007 5.9L Cummins?
Yes—this listing covers the 5.9L Cummins (24-valve common-rail) used in 2003–2007 Dodge Ram 2500/3500. For other applications, verify by ESN.
Is this a sensor or a switch?
This listing is for the oil pressure switch that provides an on/off pressure signal as specified by Cummins P/N 4076930.
Do I need to drain the oil?
Not usually, but some oil may escape when the old switch is removed. Have shop towels ready and follow the service manual.
Any special tools required?
Typically a deep socket for the switch hex and a torque wrench. Always follow the factory procedure.
