Compressor Water Inlet Tube 3400563 for Cummins QSM11/ISM11

Part Number: 3400563
Product Type: Compressor Water Inlet Tube
System: Engine cooling / air compressor cooling
Condition: New replacement part
Application: Cummins ISM / QSM / QSM11 / M11 Engine

Replacement Applications

A water inlet tube may require replacement when the original component becomes:

Cracked
Corroded
Bent or deformed
Damaged around the connection points
Leaking coolant
Restricted or contaminated internally
Damaged during engine or compressor service

Replacing a damaged tube helps restore the intended coolant connection between the engine cooling system and compressor.

Compatibility Verification

Before ordering, provide:

Original part number
Cummins engine model
Engine serial number
CPL number, if available
Photo of the original tube, when possible

The most common marketplace references identify 3400563 with M11, ISM and QSM/QSM11 applications, but engine configuration should be confirmed before installation.