2018 International 4000 Series 4300 problems, complaints & recalls
Safety recalls (1)
Service Brakes, Hydraulic:fluid 2025-08-06 · campaign 25V502000 · 4,764 vehicles ⚠ PARK OUTSIDE
Defect: International Motors, LLC (International) is recalling certain 2018 International 4000 Series 4300, 2017-2025 MV, 2018-2024 1300 FBC, 2018-2025 IC Bus TC, and 2024-2025 IC Bus CECB vehicles. The brake pressure switch assembly may leak brake fluid into the brake pressure switch's electrical components and cause an electrical short-circuit.
Risk: An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Fix: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a silicone black jumper harness, free of charge. Owner notification letters are expected to be mailed December 15, 2025. Owners may contact International customer service at 1-800-448-7825. International's number for this recall is 25509. Vehicles previously repaired under 23V397 will need to have the new remedy completed.
Service bulletins (103)
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
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
Engine 2026-01-02 · IK2600047 · Service Bulletin/Repair Instructions
engine replacements for all international engines will need to follow this procedure.
Structure:body 2025-12-19 · IK1600272 · Service Bulletin/Repair Instructions
this document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.
Showing the 6 most recent of 103 bulletins. Search all of them free at nhtsa.gov.
What owners report
2018-03-02 · Unknown Or Other · 2,500 mi“purchased january 25, 2018. when driving from lazydays dealer in tampa, fl, i had to hold the wheel to the left to keep the vehicle in the lane. at the first rest area i pulled off and switch drivers with my son john. while following behind i noticed it was leaning to the left rear. after parking it at our storage location. john remarked that it dr…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.