Part record

6.0L Power Stroke Water Pump

All 2003-2007 6.0L + E-Series 2004-2010 (vans are all late-design pumps). Build-date split (Ford catalog, 2026-09-08): early pump 'To 9/22/03' - Ford 3C3Z-8501-AB, now serviced as reman 3C3Z-8501-B (incl. gasket, Motorcraft PW-665; replaces -A/-AB remans and PW-480), 90mm impeller; late pump 'From 9/22/03' - 4C3Z-8501-AC, which the Ford catalog now lists as superseded by 4C3Z-8501-C (reman incl. gasket, PW-662; catalog description confirms 'E250-350 vans / E350 vans'), 100mm impeller. The two impellers are NOT interchangeable (front-cover difference); verify by build date or by measuring the impeller. Wear item; a plastic impeller on some pumps can slip - metal-impeller aftermarket units (e.g. Bullet Proof Diesel) preferred.