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Service bulletins for the 2001 International 9900i

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

55 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
IK12010092025-12-05. Service bulletin. STRUCTURE:BODY. In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of humidity, an operator may experience engine stalling, low performance, and or poor aftertreatment performance. This is caused by condensation accumulating and freezing within the Charge Air Cooler (CAC); affecting air flow into the engine. This article lists all the currently available winter front covers that can be installed on the front grille and bumper to reduce cold air flow to the engine compartment.
IK06000302025-12-05. Service bulletin. POWER TRAIN. This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes. (Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)
IK34000012025-09-03. Service bulletin. UNKNOWN OR OTHER. Title: Service Portal iKNow Feedback Case Types Applies To: All
IK14000052025-09-02. Service bulletin. POWER TRAIN. Title: Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
IK19000222025-08-06. Service bulletin. UNKNOWN OR OTHER. Title: A/C Refrigerant and Oil Capacities Applies To: All current models
IK12007162025-08-06. Service bulletin. UNKNOWN OR OTHER. Title: Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check
IK09001572025-08-06. Service bulletin. UNKNOWN OR OTHER. Title: Fan belt replacement guidelines for frayed edges Applies To: All Models
IK26002862025-06-04. Service bulletin. UNKNOWN OR OTHER. Title: Vehicle Programming Information for Engine: Single Box 1998-2004 I6 & V8 Applies To: Single Box 1998-2004 I6 & V8
IK05000542025-06-04. Service bulletin. STEERING. Title: Steering Gear Seal Repair Guidelines Applies To: Steering gears
IK26000692025-06-04. Service bulletin. UNKNOWN OR OTHER. Title: How to Request a Horsepower Quote Applies To: All International and Cummins Electronic engines
IK03000782025-06-04. Service bulletin. SUSPENSION. This document reminds technicians of the critical relationship between the truck's suspension and the driveline operating angles. The information applies to diesel, gas, and electric vehicles.
IK12007162025-05-05. Emissions. UNKNOWN OR OTHER. Applies To: All Navistar Powered Trucks Requesting Engine Emission Label Replacement, Certificate of Conformance and/or Clean Idle Sticker, Clean Truck Check
IK14000232024-11-11. Service bulletin. SUSPENSION. This article addresses chassis lean conditions on all chassis. This does not include any diagnostics for body leans such as a cab lean. Keep in mind that a chassis lean may cause or accentuate a cab lean. Filling out the printable form and using the notes in blue will help you to determine the source of the lean and identify the action and parts required to correct the lean.
IK08006052022-09-07. Service bulletin. ELECTRICAL SYSTEM. PicoScope Test 5V & 12V Intermittent Open and Short circuit diagnostics
IK10000032021-12-07. Service bulletin. STEERING. Power Steering Diagnostics Flow / Pressure Specifications For Power Steering Gears and Power Steering Pumps
IK12012992021-10-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. Engine Oil Capacities. All International electronic engines 1994 to present and Cummins ISB, ISM, or ISX engines
IK04000402021-08-04. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR. General wheel speed sensor troubleshooting
IK02000132021-04-02. Service bulletin. SUSPENSION. Suggested alignment target values when performing a vehicle axle alignment
IK01000512021-04-02. Service bulletin. STRUCTURE. Frame Rail Straightness Inspection Procedure
IK14000052020-09-02. Service bulletin. ENGINE; EQUIPMENT. Driveline Information Center and Troubleshooting Procedures
IK08005042020-09-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN. Repair Procedures for Vehicles Struck by Lightning
IK16002582020-04-02. Service bulletin. UNKNOWN OR OTHER; SEATS; LATCHES/LOCKS/LINKAGES; EQUIPMENT; SEAT BELTS. Cleaning and Disinfecting Trucks and Buses
IK04001592020-02-04. Service bulletin. SERVICE BRAKES, HYDRAULIC. Bendix EC80 Blank Module Replacement Program; This document will guide the user through selecting the correct ABS module when it has been determined a replacement is needed. Only Models with EC-80 ABS Controller
IK12012992019-10-03. Service bulletin. ENGINE AND ENGINE COOLING. Oil Capacities; All Electronic International Engines 1994 - Present. Cummins ISB, ISM & ISX
IK14000232019-08-02. Service bulletin. SUSPENSION. Suspension Lean Diagnostics; All models

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.