2005–2010 IC Bus Cesb, 2006–2009 IC Bus Fesb, 2006–2011 IC Bus Resb Recall: High pressure engine oil line may develop a leak or possibly rupture
NHTSA campaign 12V476000 · Engine and Engine Cooling · filed Sep 27, 2012 · verified Jul 30, 2026
The defect
Navistar is recalling certain model year 2006 through 2011 IC school buses, models CESB, RESB, and FESB, manufactured from June 17, 2004, through October 15, 2009, equipped with I-6 engines within feature codes 12N (PL, PM, PN, PR, PS, PT, PU, PV, SA, SG, SK, SL, SM, SV, SZ, TB, UA, UB, UC, and UD). The high pressure engine oil line may develop a leak or possibly rupture.
The risk
A leak or rupture of the high pressure oil line could possibly result in an unexpected engine stall or may result in an engine compartment fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Navistar will notify owners, and dealers will replace the high pressure oil line free of change. The safety recall began on December 21, 2012. Owners may contact Navistar at 1-331-332-1590.
Navistar's recall campaign number is 12523.Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
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Other campaigns involving IC Bus vehicles
Source: NHTSA recall database, campaign 12V476000 (manufacturer number 12523). Data last verified Jul 30, 2026.