These International 9300 wiring diagrams make up the factory electrical circuit diagram book (publication 1087459R2, previously CTS-4382E) for the International 9000 Series heavy-duty conventional tractor. The 66-page set gives technicians full-page schematics for tracing circuits, connectors and grounds instead of guessing.
Official document details
| Brand | International Trucks (Navistar) |
| Model coverage | International 9000 Series (9300) |
| System / Group | Wiring Diagrams / Electrical Circuit Diagrams |
| Publication no. | 1087459R2 (previously CTS-4382E) |
| Year / Revision | 1988 / rev. 1998 |
| Pages | 66 |
| File size | 2.5 MB |
| Format | |
| Language | English |
What the International 9300 wiring diagrams include
- Cover and revision page — publication 1087459R2 (previously CTS-4382E)
- Full-page electrical circuit diagrams across 66 pages
- Circuit, connector and ground routing references
- Wiring schematics for cab and chassis systems
Because the book is made up almost entirely of full-page schematics, it works as a visual reference rather than step-by-step text: use it to identify circuit numbers, connector cavities, splice points and ground locations across the 9000 Series chassis and cab. The cover marks the release as 1087459R2.
Applicable truck models
These diagrams apply to the International 9000 Series (9300) heavy-duty conventional tractor. Confirm your build date and chassis against the cover before use. For current brand information, visit the International Trucks official website.
Who needs these International 9300 wiring diagrams
Auto-electricians, fleet shops and owner-operators reach for this schematic set when chasing shorts, open circuits or add-on wiring. It is a professional reference for trained technicians, not a do-it-yourself guide.
Keep in mind that a circuit diagram book is only half the toolkit: pair these schematics with a digital multimeter and the connector face views to confirm continuity, voltage drop and correct pin assignments. Later revisions of the 9000 Series diagrams exist for trucks built after 2004, so always match the publication and build date on the cover to the vehicle in front of you before probing any circuit.
The full PDF is available in the DiagTechPro manuals library — a free account is required to download. Each listing shows the exact publication number so you can match the document to your VIN and build date before downloading.
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