Fuel lift pump/cummins/engine stalling
Defect Summary
On trolleys and transit coaches equipped with cummins isb diesel engines, the fuel lift pump could fail in a manner which results in engine fuel starvation, which could result in a stall condition. potential lift pump failure modes include: brush wear out, bushing failure, rotor tab insert failure, or any other failure mode that would cause the fuel pumping element to stop spinning.
Safety Consequence
If the fuel lift pump pumping element stops spinning and the fuel pumping vanes stop in a location which blocks fuel flow through the lift pump, the engine will be starved of fuel. fuel starvation could cause low engine power, engine misfire, or engine stall. prior to the engine stalling, the operator could experience low engine power, engine misfire, and/or dash-mounted fault lamp illumination.
Corrective Action
Cummins is conducting the owner notification and remedy for this campaign. owners may contact cummins at 1-800-343-7357 or optima at 316-779-7700.
Similar Recalls
Other recalls from Optima Bus Corp or involving N/A.
FAQ: Recall 05V110000
Your rights, the repair process, and what each field on this page means.
What is recall 05V110000?
NHTSA recall 05V110000 was issued by Optima Bus Corp on March 24, 2005. It addresses: Fuel lift pump/cummins/engine stalling. The recall affects approximately 417 vehicles, with the defect involving the N/A component.
How do I get this recall repaired?
Contact any authorized Optima Bus Corp dealer and reference NHTSA recall ID 05V110000 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.