5405814 | Genuine Cummins® Exhaust Recirculation Cooler Assembly

Reduce NOx emissions

• Cooling exhaust lowers combustion temperatures, which reduces nitrogen oxide (NOx) formation.

Control combustion temperature

• Prevents excessively high temperatures inside the engine.

Help meet emissions regulations

• Allows engines (especially diesel) to comply with environmental standards.

Protect engine components

• Reduces heat stress on valves, pistons, and the intake system.

Improve engine efficiency and stability

• Provides more controlled combustion under certain operating conditions.

Coolant loss with no visible leak

• Coolant may be leaking internally into the exhaust system

Engine overheating

• EGR cooler can restrict coolant flow or leak coolant

White exhaust smoke or steam

• Coolant entering the exhaust and burning off

Check Engine Light

• Fault codes related to EGR flow, temperature, or coolant loss

Rough idle or poor engine performance

• Caused by improper exhaust gas recirculation

Sweet smell from exhaust

• Burning coolant has a sweet odor

Engine misfires or knocking

• Incorrect combustion due to EGR malfunction

Contaminated intake system

• Soot mixed with coolant can clog intake components