Description
Cummins Part 3680953 — Studded Flange Cap Screw
The code 3680953 is a Cummins studded flange cap screw, a genuine OEM fastener used in several heavy‑duty Cummins engine applications.
Typical Engine Applications
The part is primarily used on:
EPA13 15‑liter ISX/QSX engines
XPI (Extreme Pressure Injection) fuel systems






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