577.46637 - Temp Sensor Freightliner EGT A-680-540-19-17, S-29642

The 577.46637 is an EGT (exhaust gas temperature) sensor for Freightliner trucks, cross-referencing to part numbers A-680-540-19-17 and S-29642. It monitors exhaust temperature to help the engine control module manage the aftertreatment system and regeneration cycles.

In stock and ready to ship fast from our Pennsylvania warehouse, right off I-78 — most orders go out same day. Questions about fitment? Call our parts team. Financing available for larger orders.