wp20565 - Genuine International EGR Cooler DT466E - 1 - wisentpartscenter.com

Description

Genuine International 1871733C97 EGR Cooler is used on EGR-equipped International DT466 engines to lower the temperature of exhaust gas before it is sent back into the intake. Engine coolant flows through the cooler and removes heat from the recirculated exhaust, helping the EGR system reduce combustion temperature and control NOx emissions.

Key Functions

- Cools recirculated exhaust gas before it returns to the intake.
- Uses engine coolant to remove heat from the EGR flow.
- Helps the EGR system control combustion temperature and NOx emissions.
- Keeps hot exhaust gas from being introduced directly back into the intake.

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

Purpose of the Part

The 1871733C97 works as a small heat exchanger between the exhaust and engine cooling systems. Exhaust entering the EGR system is extremely hot, so the cooler removes much of that heat before the gas reaches the intake, allowing the engine to recirculate exhaust without introducing the same exhaust temperature directly into the intake charge.

Issue Symptoms / When to Replace

An internally leaking EGR cooler can cause unexplained coolant loss, white exhaust smoke or steam, or coolant entering the intake or exhaust side of the engine. A restricted cooler may also contribute to poor EGR flow and EGR-related fault codes. Because head-gasket and other cooling-system problems can create similar symptoms, an internal coolant leak should be confirmed before replacing the cooler.

Brand Information

International builds commercial trucks and engines and has produced the DT466 engine family for decades; International notes that the DT466 first entered its truck lineup in 1975 and became one of its best-known medium-duty engines. The later EGR-equipped DT466 used cooled exhaust-gas recirculation as part of its emissions system, making the EGR cooler an important connection between the engine’s exhaust, intake, and coolant circuits.

Installation Notes

Allow the engine to cool completely and drain the coolant below the EGR cooler before removal. Refill and purge the cooling system using the applicable DT466 service procedure.

How to Identify an OEM Part

For 1871733C97, look for an International/Navistar OE part-number label or permanent marking on the cooler.

Why Buy 1871733C97 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day 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.