Four Seasons announces its GM Heater Fitting. Part number 84500 for GMC and Chevy light trucks, model years 1996-1999, is now coated with a zinc chromate, an anticorrosion material that eliminates the problem of corrosion and leakage that was previously experienced with the O.E. part. 

This is a one time solution for consumers and professional installers sparing the customer a return “re-check” visit.