Caterpillar SIS 2021 — Complete Service Information System as Ready-to-Run VMware Image
Work on CAT machines with genuine factory data: this listing provides the SIS 2021 service library inside a pre-installed virtual machine. Boot it, log in, and search the same information dealers use — parts, service procedures, testing specs and wiring for loaders, dozers, trucks, pavers and engines.

Ideal for CAT workshops, field service techs, parts interpreters and fleet maintenance teams.

✔ Release: SIS 2021 web edition, local server (no internet needed)
✔ Access: login accounts supplied in the VM (USER ID file)
✔ Lookup: serial number / prefix, sales model, part number, keyword, SMCS, NPR
✔ Documents: systems & components, interactive schematics, parts manuals with callouts, quantities and notes
✔ Dataset: FINNING dealer data, Oct 2020 publications and newer

Using SIS (see photos):
1. Start the SIS icon — wait for "Starting webserver" (photo 1).
2. Log in with a supplied account (photo 2).
3. Search by serial or browse families → models → prefixes (photos 3–4).
4. Read interactive schematics and parts tables with OEM numbers (photos 5–8).

Delivery: MEGA download link after checkout (~156 GB). VMware Player/Workstation required.

Tags: cat sis 2021, caterpillar service information, sis vm