Direct Replacement for 2003–2007 6.0L Powerstroke — Designed to precisely match OEM mounting points and fitment so no modifications or special tools are required Upgraded Flow & Cooling Efficiency — Larger internal passages and expanded surface area reduce pressure drop and improve heat dissipation, helping maintain lower oil temps under load Durable Aluminum Construction — Built from high-quality corrosion-resistant aluminum for long life and reliable performance, outlasting the factory cooler Full Seal Kit Included — Ships with O-rings, gaskets, and a replacement internal screen to ensure a leak-free installation right out of the box Trusted Sinister Diesel Quality – Backed by Sinister Diesel’s reputation for precision-engineered Diesel performance parts, trusted by diesel enthusiasts across the U.S. MADE IN THE USA