2021 International LT Recall: Capscrews that attach the flywheel to the crankshaft may have been…
NHTSA campaign 21V112000 · Engine · filed Feb 24, 2021 · verified Jul 30, 2026
The defect
Navistar, Inc. (Navistar) is recalling certain 2021 International LT vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.
The risk
A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.
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 work with the engine manufacturer Cummins Inc. to notify owners, and Cummins dealers will properly tighten the capscrews and inspect for possible damage, repairing any damage found, free of charge. The recall began on March 29, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
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
| Make | Model | Model years |
|---|---|---|
| International | LT | 2021 |
Related recalls
More International LT recalls
- 2016 International 7600 and 7 other models — Electrical noise and low signal to the power line carrier…
- 2023–2026 International LT and 1 other model — Auto neutral function may not recognize that the parking…
- 2023–2026 International LT and 1 other model — Hill Start Assist (HSA) exhaust port may become clogged…
- 2024–2026 International LT and 1 other model — Hill Start Assist (HSA) exhaust port may become clogged…
- 2025 International Emv and 5 other models — Linkage that connects the right-side wiper arm to the motor…
Other campaigns involving International vehicles
All International LT recalls → · All International recalls →
Source: NHTSA recall database, campaign 21V112000 (manufacturer number None). Data last verified Jul 30, 2026.