Cummins 3408428. Should be @ $60.00 from Cummins.
I apologize for posting possibly incorrect information.
Being the 12V guy that I am I was not aware of the sensor change. The number I quoted above is the current part number for '98.5 to at least '01 24V's. The original number should be 3329619 which changed to 3348749 which now has changed to 3408428.
The number Mike quoted, 4921511, shows to be no longer available and has been changed to 4326849, which is the one Geno's is selling.
I did find the following:
TSB020013 Midrange Oil Pressure Switch Release
Issue:The purpose of this Early Warning is to highlight the release of the midrange oil pressure switch. The switch was released on April 8, 2002. The ESN first for CMEP built engines is 56913179, and the ESN first for CDC built engines is 46202315.
Verification:
ISB/QSB, ISC/QSC and ISL/QSL
This is the step 6 fix (final fix) for the midrange oil pressure sensor issues. Symptoms of the oil pressure sensor failures include the logging of fault codes 141, 143, and 415. The triggering of dash lights accompanied with these fault codes and the triggering of engine protection shutdown on vehicles with this feature enabled are also associated with this issue.
If the engine shows signs similar to the above symptoms, verify oil pressure with a manual gauge. Compare that reading to the monitor parameter in INSITE™ with the engine running. If the readings are different, follow the repair procedure.
This issue has been investigated and found to be the result of internal sensor issues. To prevent additional aggravation to customers from repeated sensor failures, and to improve the robustness of the oil pressure monitoring system, Cummins Inc. has released an oil pressure switch.
Damage can occur to the engine if the current sensor fails and is unable to detect engine oil pressure. The damage could include internal engine failure.
Resolution:
Included in each of the jumper harness kits is Installation Bulletin, 3377931, which details the installation of the new oil pressure switch. A recalibration is also required for all engines being upfitted with the new switch. All the calibrations were available as of the May, 2002 Incal CD. For industrial calibrations, consult the midrange folder on the CD for a cross-reference from the old calibration number to the new calibration number. All industrial calibrations required for the oil pressure switch will be found under the specific industrial product selection, and
not under their automotive counterparts.