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Power Stroke EGR & Cooling Guide: Coolers, Radiators & Fixes

How to fix the Power Stroke's known cooling weak points — EGR coolers, oil coolers, radiators, water pumps, and thermostats on the 6.0, 6.4, and 6.7 diesel.

By Updated July 22, 2026

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Power Stroke EGR coolers Oil coolers & kits (used/OEM)

Overheating and coolant loss are the Power Stroke’s most common — and most fixable — reliability complaints, especially on the 6.0. This guide walks the cooling system end to end and points you to new parts on Amazon and used/OEM cooling parts on eBay Motors.

The Linked Failure: Oil Cooler and EGR Cooler

On the 6.0, a clogged oil cooler chokes coolant flow to the EGR cooler, cooking it and pushing coolant into the intake. That’s why owners replace both together. Browse the EGR & cooling category for upgraded coolers and kits.

Radiator, Water Pump, and Thermostat

A tired radiator or weak water pump turns a marginal cooling system into an overheating one, especially towing. Refresh these while the system is drained. A coolant filter kit keeps casting sand and debris out of the new parts.

Support It With Airflow

Heat management and airflow go together. A freer-flowing air intake and exhaust reduce exhaust gas temps, and a tuner with EGT monitoring lets you watch temperatures while towing.

Where to Buy

  • New EGR coolers, oil coolers, radiators, and kits: Amazon Automotive — see EGR & cooling.
  • Used and OEM cooling components: eBay Motors, using the buttons above.

Frequently Asked Questions

Why do Power Stroke EGR and oil coolers fail?
The 6.0's oil cooler clogs over time, which starves the EGR cooler of coolant flow and cooks it — the two failures are linked. Symptoms include overheating, white smoke, coolant loss, and rising oil temps that track coolant temps. Replacing the oil cooler when you touch the EGR cooler is standard practice.
Should I delete or replace the EGR system?
For emissions-legal street trucks, replace with an upgraded EGR cooler and keep the system functional. Deletes exist for off-road and competition use only and can carry legal and warranty consequences on the street. This guide focuses on reliable, functional cooling.
What else should I refresh while I'm in there?
It's smart to do the water pump, thermostat, and a coolant filter kit at the same time — you're already draining the system, and these are common wear items on a high-mileage diesel.

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