Restore proper oil cooling performance in your 7.3 Powerstroke with this direct replacement engine oil cooler assembly for 1994.5-2003 Ford Super Duty, Excursion, and E-Series diesel applications. Designed as an OEM-style replacement for the factory 6A642 oil cooler assembly, this unit helps regulate engine oil temperature while protecting critical internal engine components from excessive heat and oil breakdown.
The factory 7.3 Powerstroke oil cooler is known to develop internal leaks, corrosion, restricted coolant passages, deteriorated seals, and oil contamination issues over time. A failing oil cooler can lead to coolant in the oil, oil in the coolant reservoir, overheating concerns, low oil pressure symptoms, and premature engine wear. Replacing the oil cooler assembly is critical maintenance for high-mileage 7.3L Powerstroke trucks.
This replacement oil cooler is engineered for proper fitment and dependable performance in Ford F250, F350, F450, F550, Excursion, and E-Series vans equipped with the legendary 7.3L Powerstroke diesel engine.
Ideal for stock daily drivers, tow rigs, work trucks, fleet vehicles, restoration projects, and preventative maintenance repairs.
Common Symptoms of a Failing 7.3 Powerstroke Oil Cooler
- Coolant leaking from oil cooler area
- Oil inside coolant reservoir
- Coolant contamination in engine oil
- Overheating under load or towing
- Deteriorated oil cooler O-rings
- External oil leaks near oil cooler housing
- Elevated engine oil temperatures
- Reduced cooling system efficiency
- High-mileage preventative maintenance replacement
Why Replace Your 7.3 Oil Cooler?
The 7.3L Powerstroke relies on consistent oil temperature control for injector performance, turbocharger protection, bearing longevity, and overall engine durability. As mileage accumulates, the factory oil cooler can become restricted internally from coolant sediment and corrosion buildup. Replacing the oil cooler assembly helps protect your engine investment and maintain reliable towing and daily driving performance.
This is a highly recommended maintenance item for older 7.3 Powerstroke trucks, especially those used for towing, heavy hauling, fleet service, or performance applications.
