Genuine Cummins Ignition Control Module 5320525 for 8.9 liter ISC/ISL engines April 22, 2026 Comments Off Posted in: genuine The Cummins Ignition Control Module 5320525 is used primarily on EPA13 8.9 liter ISC/ISL engines. Tags: control, cummins, engines, genuine, ignition, iscisl, liter, module Comments are closed.