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Q:What psi is this rated for?
A:Happy to answer your question Gearhead! This Fuel Pressure Regulator is rated at 50PSI.
A:I'm happy to help, Gearhead! This Wells Vehicle Electronics Fuel Pressure Regulator (Part No. PR121) is engineered to fit multiple GM V8 engines in vehicles from 1996-2005 and has an operating pressure of 50 psi.