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ServiceMaxx™ is a PC application for diagnosing and programming Navistar® Engines, suitable for various truck fleets. It facilitates:

- Reading/clearing fault codes
- Viewing/graphing engine data
- Conducting special tests (KOEO/KOER, Injector Buzz, Cylinder Cutout)
- Changing parameters (Idle Shutdown Timer, Fan Control, Vehicle Speed Limit)
- Compatible with engines like DT466, VT365, and models from buses to heavy-duty trucks.

Designed to address a range of diagnostic needs, ServiceMaxx supports both new and legacy systems, ensuring comprehensive coverage for maintenance professionals.


  • Microsoft® Windows® Vista, or Windows 7
  • 1GHz Intel Core 2 Duo, AMD Athlon X2 or better
  • 2GB (32-bit) or 4GB (64-bit) of RAM
  • 300MB of available hard disk space
  • 1024 x 768 pixel monitor
  • One or more RP1210A compatible communication devices with SAE J1708
  • NOTE: Make sure to close ServiceMaxx before installing a new version

All returns must be postmarked within fifteen (15) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.


The following items cannot be returned:

> Subscriptions license codes

> For defective or damaged products, please contact us at the contact details below to arrange a refund or exchange.

Please Note

> A 15% restocking fee will be charged for all returns.

> Returns must be approved and include return authorization before being shipped.

> Items should be shipped by a carrier that can track packages.

> Customer assumes responsibility for insuring returned item