Answer
Oct 27, 2025 - 05:40 PM
Absolutely — our Sinister Diesel Heavy Duty Oil Cooler for the 2003–2007 6.0L Powerstroke is engineered to meet or exceed OEM standards. We've been running this design for over 10 years with thousands of satisfied customers. It features slightly enlarged internal passages to improve flow for both oil and coolant, while still maintaining the correct dwell time needed to properly cool the oil before it re-enters the system.
This balance of flow and efficiency ensures reliable long-term performance and a direct fit—just like the factory component, only better.
