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EGR Cooler

Genuine OEM EGR Coolers

A leaking or clogged EGR cooler can allow exhaust gases to mix with coolant, leading to white smoke, coolant loss, overheating, and in severe cases, catastrophic engine damage. Because the EGR cooler must lower recirculated exhaust gas temperatures before they re-enter the intake, a wrong or generic replacement with incorrect flow rates or insufficient heat exchange capacity often can't keep up under load — accelerating failure and putting the engine at risk. That's why every EGR cooler in this collection is genuine OEM, matched to the manufacturer's original part number.

What's in this category

This collection covers genuine OEM EGR coolers for heavy-duty diesel engines, engineered to reduce the temperature of recirculated exhaust gases before they re-enter the intake manifold, protecting the engine and keeping the EGR system within emissions compliance. New listings are added regularly as inventory expands.

Why order your EGR cooler here

  • Genuine OEM only — every cooler is matched to the manufacturer's original part number, not a generic equivalent
  • Built for accurate fitment — listings include the exact OEM number so you can verify the right part before you buy
  • Fast turnaround — ships quickly to protect your engine and restore emissions compliance

FAQ

What does an EGR cooler do? It uses engine coolant to lower the temperature of exhaust gases before they are recirculated back into the intake manifold. Cooler EGR gases reduce peak combustion temperatures, which lowers NOx emissions and protects the engine.

Signs of a failing EGR cooler? White or grey smoke from the exhaust, unexplained coolant loss, coolant contamination in the intake, overheating, a sweet smell from the exhaust, or fault codes related to EGR temperature or coolant flow.

Genuine OEM or aftermarket? All parts here are genuine OEM — no generic substitutes.

How do I find the right EGR cooler? Match the OEM number on your old cooler, or check your service manual for the correct reference and engine configuration, then search that number above.

Browse the full selection below, or search by OEM part number to find your exact match.

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00

2048378 Genuine Paccar EGR Cooler Coolant Pipe

Paccar

Product Overview The 2048378 is a genuine Paccar EGR cooler coolant pipe designed for Kenworth T680, T880, W900 and Peterbilt 579, 389 trucks. This...

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$250.00 - $250.00
$250.00
$250.00 - $250.00
$250.00