MT09SPSS is the code stamped on a 2025 MT-09 SP, and LIT-11616-37-68 is the Yamaha part number of the service volume that covers it.
One book, two models, three years
Yamaha's coverage here runs from 2024 to 2026 and includes the standard MT-09 as well as the SP. Working on one gives you the reference for the other, with the differences between the two spelled out rather than assumed.
What the volume contains is the factory approach to the work itself. Procedures are sequenced. Torque values are specified for the fasteners involved. Clearances and adjustment settings are stated as figures you can measure against. Wiring diagrams document the electrical circuits, and the troubleshooting material is organised so a symptom leads to the checks worth making.
Confirm MT09SPSS against your machine before applying anything from LIT-11616-37-68 to it.
