Use cautionVehicle recall · NHTSA · Published May 19, 2021
Navistar 2018-2021 International HV Fuel Leak Fire Recall
Navistar recalls 2018-2021 International HV trucks with potential fuel leaks that could cause fire if near ignition sources. Owners must have rail inspected and replaced by dealers free of charge.
Navistar is recalling certain 2018-2021 International HV trucks due to a risk of fuel leaks near ignition sources that could cause fire. This affects vehicles where the sealing washer may not seat correctly, potentially leading to dangerous fuel leaks. Read more at govinfonow.com/recall/79692-navistar-2018-2021-international-hv-fuel-leak-fire-recall.
“Navistar 2018-2021 International HV Fuel Leak Fire Recall.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/79692-navistar-2018-2021-international-hv-fuel-leak-fire-recall. Based on NHTSA recall #21V366000 (https://www.nhtsa.gov/recalls?nhtsaId=21V366000).
The National Highway Traffic Safety Administration announced a recall on May 19, 2021, for certain Navistar vehicles due to a fuel leak that increases the risk of fire. Dealers will inspect and replace the fuel rail as necessary at no cost to owners.
How to tell if you have it
IC Bus RE Commercial Bus, 2019-2021
International DuraStar, 2018-2019
International HV, 2019-2021
International MV, 2019-2021
International WorkStar, 2018-2019
What to do
Dealers will inspect the rail threads and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
The hazard
A fuel leak in the presence of an ignition source increases the risk of a fire. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Context
GovInfoNow's records show Navistar, Inc. has 185 other recalls on record since 2008-11-24. Other recent recalls of similar products include Navistar 2024-2025 School Buses: Brake Caliper Detachment Risk (2024-10-02), Navistar 2025 CV Vehicles: Air Bags May Not Deploy in Crashes (2024-10-01), and Navistar 2025 International LT Vehicles: Fuel Pump Leak Risk (2024-10-01). Other recent recalls of similar products include Ford 2024 Bronco Fuel Leak Recall: Fire Risk (2025-11-09), Genesis 2022-2025 G80 Fuel Leak Recall: Fire Risk (2026-04-10), and Ford F-150 2025 Fuel Tank Recall: Risk of Crash or Fire (2026-09-09).
How to tell if you have this one
Check if your vehicle is a 2018-2021 International HV truck. The recall covers specific models from Navistar, including the 2019-2021 International HV.
Brand
Navistar
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Dealer for Inspection
Dealers will inspect the rail threads and replace the rail as necessary at no cost to the owner.
Check Notification Letter
Owner notification letters were mailed on June 21, 2021, so you should have received one if affected.
Official remedy
What NHTSA says to do
Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
How this recall unfolded
Recall timeline
Owners were mailed letters 33 days after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Navistar
We’ve drafted a message you can send Navistar to request your refund or repair — edit it as you like.
Subject: Recall 21V366000 — Navistar 2018-2021 International HV Fuel Leak Fire Recall
Hello,
I own a Navistar 2018-2021 International HV Fuel Leak Fire Recall that is covered by recall 21V366000 from Navistar.
The official recall notice states: Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.