Cummins/engines
Defect Summary
Equipment description: c8.3 urban bus engines shipped to flxible corporation. the lubricating thermostat internal pin exerts force on the inside face of the large aluminum hex nut, wearing a hole in this nut. lubricating oil can then leak or spray up onto the exhaust manifold and into the engine compartment.
Safety Consequence
Oil leakage onto the engine's exhaust manifold and into the engine compartment could possibly result in a fire.
Corrective Action
Dealers will replace the oil thermostat with a new lubricating bypass valve.
Similar Recalls
Other recalls from Cummins, Inc. or involving Engine And Engine Cooling.
FAQ: Recall 98E030000
Your rights, the repair process, and what each field on this page means.
What is recall 98E030000?
NHTSA recall 98E030000 was issued by Cummins, Inc. on September 29, 1998. It addresses: Cummins/engines. The recall affects approximately 625 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Cummins, Inc. dealer and reference NHTSA recall ID 98E030000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.