These WorkStar wiring diagrams (publication s082852) are the factory electrical circuit diagram book for International 4200, 4300, 4400, 7300, 7400, 7500, 8500 and 8600 trucks built between January and September 2002. The 183-page set maps power, charging and engine circuits.
Official document details
| Brand | International Trucks (Navistar) |
| Model coverage | 4200-4400, 7300-7500, 8500-8600 |
| System / Group | Wiring Diagrams / Electrical Circuit Diagrams |
| Publication no. | s082852 |
| Year / Revision | Jan – Sep 2002 |
| Pages | 183 |
| File size | 3.5 MB |
| Format | |
| Language | English |
What the WorkStar wiring diagrams include
- Instructions and charts (Chapter 1)
- Circuit number identification and location charts
- NavPak/ECM connector pin identification
- Schematic symbol chart, relay functions and lamp bulb chart
- 12-volt power distribution circuit diagrams
- Cab accessories and digital clock
- 12V charging and cranking — I6 HEUI, V8 AVNT and Caterpillar engines
- Allison LCT column shifter and connector composites
These WorkStar wiring diagrams add a 12V charging and cranking chapter for I6 HEUI, V8 AVNT and Caterpillar engines, plus circuits for the Allison LCT column shifter and transmission retarder solenoids, all drawn to a common schematic symbol chart.
Applicable truck models
These diagrams apply to International 4200, 4300, 4400, 7300, 7400, 7500, 8500 and 8600 series trucks built January to September 2002. Match your build date. Visit the International Trucks official website.
Who needs these WorkStar wiring diagrams
Auto-electricians and fleet diagnosticians use this schematic set to trace power, charging and transmission circuits and identify connectors. It is a professional reference for trained technicians.
The instruction and chart pages at the front define the schematic symbols, relay functions and lamp-bulb references used throughout, while connector composite pages give mating views with cavity, circuit, gauge and wire colour. That combination is what lets a technician follow a single wire from the engine controller through splices and grounds to its load without guesswork.
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.
Related manuals library
