2515899C1 | Genuine Kalmar Ottawa® DEF Sensor Head Air Brake Valve Frozen DEF system / no

Frozen DEF system / no flow

An Electronic Control Module (ECM) 3619037 - also called an Engine Control Module or Engine Control Unit (ECU) - is a small computer that manages how an engine operates

Communicates with other systems like:

Often seen during inspection if the plate is removed or exposed

Sometimes mistaken for drivetrain or dash noise

2515899C1 | Genuine Kalmar Ottawa® DEF Sensor Head Air Brake Valve Frozen DEF system / noDescription: A DEF (Diesel Exhaust Fluid) Sensor Head Assembly 2515899C1 is a critical emissions control component in modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems. It monitors and manages various aspects of the DEF tank and fluid, ensuring that the vehicle meets emissions regulations by properly injecting DEF into the exhaust stream. Part Number: 2515899C1 Condition: New Manufacture Brand: Kalmar Ottawa