Is your 6.7L Powerstroke still relying on a basic oil filter? The Bosch 3973 Premium Oil Filter is designed to deliver high-efficiency filtration and dependable oil flow for Powerstroke applications, helping protect critical engine components from harmful contaminants that can accelerate wear over time. Built as a direct-fit replacement for the factory filter, it’s engineered for consistent filtration performance during daily driving and hauling while supporting cleaner oil circulation throughout the engine.
Built with Bosch FILTECH blended media technology, the 3973 uses a combination of natural and synthetic fibers designed to capture up to 99% of harmful particles while maintaining strong oil flow characteristics under pressure. The heavy-duty steel canister construction and integrated anti-drainback valve help maintain lubrication during startup and resist pressure fluctuations under load. Designed specifically for demanding diesel applications, the filter delivers OEM-style fitment and dependable sealing performance.