Upgrade your Duramax with the Racor PFRK50126-04 Parfit Water In Fuel (WIF) Sensor. Designed as a direct factory replacement for 2001-2011 models, this sensor features a float-style design for reliable water detection in your fuel filter. The Racor PFRK50126-04 helps prevent damage from air leaks and alerts you to water presence, ensuring optimal engine performance and longevity. Backed by a 1-year warranty, it meets OEM standards for quality and reliability.

• Direct OEM replacement for Duramax 2001-2011
• Float-style design for accurate water detection
• Prevents damage from air leaks in the fuel system
• Meets stringent OEM standards
• GM Cross Reference#: 12639277