The defect
Navistar, Inc. (Navistar) is recalling certain 2017-2021 IC CE School Buses equipped with Cummins B6.7 diesel engines with fuel module option number FS90301 or FS90453. The electric fuel heater within the fuel module may overheat and cause plastic in the fuel heater to melt and potentially catch fire. It may also lead to engine stalling.
The risk
A fire increases the risk of injury. An engine stall can increase the risk of a crash.
The remedy
Cummins will notify the affected Navistar customers and dealers will disable the fuel heater by either installing a plug in place of the heater or otherwise rendering the fuel heater non-operable and remove the fuse supplying electrical power to the fuel heater and install a cover over the wire harness connector, free of charge. The recall began May 28, 2020. Owners may contact Cummins customer service at 1-800-286-6467.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| IC Bus CE | 2017, 2018, 2019, 2020, 2021 |
| IC Bus Cesb | 2017, 2018, 2019, 2020 |
Components: FUEL SYSTEM, DIESEL: PRE-HEATER
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| IC Bus CE | 2017 | 0 | 4 |
| IC Bus CE | 2018 | 0 | 7 |
| IC Bus CE | 2019 | 0 | 8 |
| IC Bus CE | 2020 | 0 | 5 |
| IC Bus CE | 2021 | 0 | 6 |
| IC Bus Cesb | 2017 | 0 | 14 |
| IC Bus Cesb | 2018 | 0 | 12 |
| IC Bus Cesb | 2019 | 0 | 16 |
| IC Bus Cesb | 2020 | 1 | 12 |
Other fuel system, diesel recalls in 2020
2 of the 782 recall campaigns reported to NHTSA in 2020 concerned the fuel system, diesel; Navistar, Inc. filed 183 campaigns in all.
| 20V219000 17 Apr 2020 | Navistar, Inc. |
NHTSA recalls (public domain) · all recalls of 2020