ISX EGR Cummins Engine Parts Cooler Bypass Water Transfer Tubes 5575183 4367122

What’s Included in This Cummins Parts Kit

1.Front Coolant Bypass Transfer Tube, OEM PN: 4367122

2.Rear Coolant Bypass Transfer Tube, OEM PN: 5575183

Core Key Features of Our Cummins ISX Bypass Tubes

1. Strictly engineered to meet Class 8 heavy-duty thermal & pressure standards, fully matching the rigorous working demands of commercial Cummins engines

2. Built-in exhaust vent on the rear tube eliminates air pockets during coolant filling and long-time vehicle operation

3. Steady coolant supply guaranteed for #5 & #6 cylinder liner areas after EGR cooler removal or deletion

4. Effectively cuts down recurring EGR cooler leakage, eliminates potential EGR system failure risks, prolongs Cummins engine service life

Applicable Cummins Engines & Scope

These professional Cummins replacement parts fit perfectly on Cummins ISX & Cummins X15 engines, covering CM871, CM2250, CM2350, CM2450 main control modules. The bypass tubes are also applicable to marine ISX equipment, for projects where the EGR assembly is removed and a dedicated direct coolant pipeline from the water pump to rear engine block is required.

 

Installation & Compatibility Instructions for Cummins Parts
 

1. Water pump specification note: For CM870, CM871, ISX15 CM2250/CM2350, QSX15 CM2250/CM2350 engines manufactured before July 18, 2016 (ESN:79930769), a new water pump transfer tube may be necessary after water pump replacement; refer to official Cummins TSB160109 document for detailed specifications.

2. Freightliner & International chassis: Pipe layout differences on individual chassis will affect water pump inlet matching, please double-check whether 5575183 & 4367122 fit your Cummins engine before ordering.

3. Full EGR delete modification: The #1 exhaust manifold elbow usually needs replacement with a 90° elbow (Cummins PN:3683870) during full EGR removal; this elbow is an independent accessory, while our two bypass tubes keep the same installation method regardless of EGR delete progress.


 

Choosing our 5575183 & 4367122 Cummins ISX bypass tubes means reliable protection for your Cummins engines. As cost-effective, durable Cummins replacement parts, they fix EGR removal side effects once and for all, reduce long-term maintenance troubles, and steadily extend your engine service life. We strictly follow industrial production standards, so you can purchase and install our Cummins parts with full confidence.