Buy wp20604 - Genuine Cummins EGR Cooler Kit for ISX15 - 1 - wisentpartscenter.com

Description

3689565 Genuine Cummins EGR Cooler Kit is designed for compatible Cummins ISX15 15.0L diesel engines used in heavy-duty commercial trucks. As part of the exhaust gas recirculation (EGR) system, the cooler uses engine coolant to reduce the temperature of recirculated exhaust gases before they return to the intake system. This helps control combustion temperatures, reduce nitrogen oxide (NOx) emissions, and support proper engine emissions-system operation.

Key Functions

- Cools recirculated exhaust gases before they enter the engine's intake system.
- Transfers heat from exhaust gases to the engine cooling system.
- Helps reduce peak combustion temperatures and NOx emissions.
- Supports proper EGR system operation under varying engine loads.
- Maintains the intended exhaust gas cooling function required by the engine's emissions-control system.

Fitment & Specifications

- Brand: Cummins
- Part Type: EGR Cooler Kit
- Engine: Cummins ISX15
- Engine Displacement: 15.0L
- Vehicle Applications: Select heavy-duty trucks equipped with compatible Cummins ISX15 engines
- Emissions Applications: EPA 2010 and EPA 2013
- Commonly Cataloged Model Years: 2011–2016, subject to engine configuration
- System: Exhaust Gas Recirculation (EGR)
- Cooling Type: Engine coolant-cooled exhaust gas heat exchanger
- Cooler Generation: Commonly identified as Generation 3

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

3689565 Cummins EGR Cooler Kit helps reduce the temperature of exhaust gases before they are recirculated into the engine's intake system. Hot exhaust gases pass through the cooler, where heat is transferred to the engine coolant. Lowering the temperature of the recirculated gases helps control combustion temperatures and reduce NOx formation. Proper EGR cooler operation also prevents excessive heat from entering the intake system and supports the engine's emissions-control strategy.

Issue Symptoms / When to Replace

A leaking, cracked, or restricted EGR cooler can cause engine cooling and emissions-system problems. Common signs that the cooler may require inspection or replacement include:

- Unexplained coolant loss without an obvious external leak.
- White exhaust smoke or steam caused by coolant entering the exhaust path.
- Coolant contamination or moisture accumulation in EGR passages.
- Engine overheating or cooling-system pressure abnormalities.
- Check Engine light or EGR-related diagnostic faults.
- Reduced engine performance caused by restricted EGR flow.
- External coolant leaks around the EGR cooler or its connections.

These symptoms can also result from cylinder head gasket problems, damaged coolant lines, EGR valve restrictions, or other cooling-system faults. Inspect and pressure-test the EGR cooler and related components before replacement.

Brand Information

Cummins manufactures diesel engines and associated OEM components for heavy-duty trucks, industrial equipment, and commercial applications. Its ISX15 engine family uses electronically managed emissions systems, including cooled exhaust gas recirculation. Genuine Cummins EGR cooler components are designed to meet the requirements of their specified engine and emissions-system configurations.

Installation Notes

Before installing the Cummins EGR Cooler Kit, inspect the cooling system for contamination, restrictions, and evidence of previous coolant leakage. Clean the mating surfaces and replace the required gaskets, O-rings, and seals according to the applicable Cummins service procedure. Inspect the EGR passages and associated exhaust connections for carbon buildup or damage that could affect the replacement cooler.

After installation, refill and bleed the cooling system as required, pressure-test for leaks, and verify proper engine operating temperature. Check the EGR cooler connections for exhaust and coolant leakage before returning the vehicle to service.

How to Identify an OEM Part

Identify the Genuine Cummins EGR Cooler Kit using its original Cummins packaging and factory identification markings. Compare the cooler's housing, exhaust connections, coolant ports, and mounting configuration with the original assembly. Verify the kit identification separately from any number found on the cooler itself.

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Warranty & Return Information
Warranty Information

Wisent Parts offers a 1-year warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.