2018 International Hx problems, complaints & recalls
Safety recalls (6)
Engine 2022-09-15 · campaign 22V691000 · 7,918 vehicles
Defect: Navistar, Inc. (Navistar) is recalling certain 2018-2021 International HV, 2018-2020 International HX, 2018-2021 International LT and International RH vehicles. The connecting rod wrist pin may crack, resulting in connecting rod failure.
Risk: Connecting rod failure can cause an engine shutdown, increasing the risk of a crash.
Fix: Dealers will install new knock detection software to warn the driver prior to engine connecting rod failure, and replace connecting rods as necessary, free of charge. Owner notification letters were mailed February 24, 2023. Owners may contact Navistar's customer service at 1-800-448-7825. Navistar's number for this recall is 22518.
Power Train:clutch Assembly 2018-11-21 · campaign 18V826000 · 21,740 vehicles
Defect: Navistar, Inc. (Navistar) is recalling certain 2019 International HV, MV, 2018-2019 HX, LT, RH, LoneStar, ProStar, WorkStar, and 2018 TranStar automated manual transmission vehicles, equipped with certain Eaton ECA heavy-duty truck clutches. An internal component in the clutch assembly may fail, possibly resulting in unintended vehicle movement.
Risk: Unintended vehicle movement can increase the risk of a crash.
Fix: Navistar will notify owners, and dealers will recalibrate the Transmission Control Module (TCM), free of charge. The recall began January 18, 2019. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 18518.
Engine And Engine Cooling:engine:diesel 2018-09-05 · campaign 18V588000 · 26,288 vehicles
Defect: Navistar, Inc. (Navistar) is recalling certain 2017-2018 International ProStar and 9900i trucks, 2018-2019 International LT trucks, 2017-2019 International LoneStar and HX trucks and 2017 International PayStar trucks, equipped with Cummins ISX15 or X15 diesel engines. In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pump cooling circuit screen becomes restricted.
Risk: If the fuel line bursts, fuel may leak onto the road resulting in a roadway hazard for other motorists. The engine may also stall without warning, resulting in the vehicle's inability to restart, increasing the risk of a crash.
Fix: Cummins will notify the affected owners and dealers will replace the nylon fuel line with a steel fuel line, free of charge. Navistar issued owners an interim notification on October 11, 2018. The recall began November 21, 2018. Owners may contact Navistar customer service at 1-800-448-7825, or Cummins customer service at 1-800-286-6467.
Fuel System, Diesel 2018-06-18 · campaign 18V412000 · 19 vehicles
Defect: Navistar, Inc. (Navistar) is recalling certain 2018-2019 International HX and LT trucks equipped with a Cummins ISX engine and a Wabco 37.4 air compressor. The air compressor discharge line may contact the fuel filter inlet and outlet lines (fuel lines) and the heat generated from the air compressor discharge line may cause heat damage to the fuel lines.
Risk: Continued heat damage to the fuel lines could cause the fuel lines to rupture, resulting in a fuel leak and increasing the risk of a fire.
Fix: Navistar will notify owners, and dealers will replace the straight fitting on the air compressor discharge line and the discharge line with a 45-degree fitting and a redesigned discharge line, free of charge. The recall began on July 20, 2018. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 18511.
Electronic Stability Control (Esc) 2018-05-03 · campaign 18V289000 · 72 vehicles
Defect: Navistar, Inc. (Navistar) is recalling certain 2017-2019 International HX severe service diesel trucks equipped with feature code 04091 (dual air brake system) and 04AZY (Antilock Brake System (ABS) with 6 channel Electronic Stability Protection (ESP)). The air supply line to the SR7 roll stability valve may have been improperly routed to the ATR6 brake control valve steer axle delivery port, when it should be connected to the ATR6 brake control valve control port.
Risk: During a stability control oversteer event when there are slippery road conditions, the parking brakes may be modulated unintentionally, potentially causing a loss of control and increasing the risk of a crash.
Fix: Navistar will notify owners, and dealers will reroute the SR7 roll stability valve supply line to the ATR6 brake control valve control port, free of charge. The recall began on June 12, 2018. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 18504.
Fuel System, Diesel 2017-08-14 · campaign 17V406000 · 224 vehicles
Defect: Navistar Inc. (Navistar) is recalling certain 2018 International LT and HX severe service diesel trucks equipped with Cummins ISX 15L engines. These engines have a fuel pump whose drive gear could possibly slip on its drive shaft, causing a fuel pump function loss, resulting in an engine stall.
Risk: An engine stall can increase the risk of a crash.
Fix: Cummins has notified the owners of the affected vehicles and Cummins dealers will replace the fuel pumps, free of charge. The recall began on August 11, 2017. Owners may contact Cummins customer service at 1-800-286-6467 or Navistar customer service at 1-331-332-1590.
Service bulletins (230)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-07-21 · IK1900198 · Service Bulletin/Repair Instructions
this article only applies to models w/ 0016uzl built between 06/23/2014 – 05/11/2020 or models w/ 0016uzl w/ safety recall 14516 completed reference the appropriate technician manual for models outside of this population. safety recall 14516 has been issued for units built before june 23, 2014. for
Electrical System 2026-06-09 · IK0800560 · Service Bulletin/Repair Instructions
this document will guide the user through the changes of the dielectric grease/coatings used in certain areas on all international vehicles built after 1/8/2018. international's electrical engineering team made this change to improve the longevity of the oem coatings and to improve applications at t
Electrical System 2026-02-13 · IK0800684 · Service Bulletin/Repair Instructions
this document is to inform dealers, customers, and body builders/tems of a known bcm software issue with kernels 747 through 752. units built after november of 2024 as well as older units that were updated with dlb between 11/5/2024 and 6/26/2025 with remote power modules (rpm) modules, can experie
Engine 2026-02-05 · IK2600090 · Other
new carb idle reduction change request
Electrical System 2026-02-03 · IK4300035 · Service Bulletin/Repair Instructions
this tool is designed to compare diamond logic feature data across multiple vehicle configuration files. it allows users to quickly load files either manually or directly from the diamond logic builder vehicles folder using vin-based selection. as files are added or removed, the comparison runs auto
Engine 2026-01-26 · IK2600255 · Other
this document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. customer requested changes will be approved in accordance with the requirements specified in 40 cfr part 1037 to ensure continued compliance with green
Showing the 6 most recent of 230 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.