1991 GMC C3500HD 6.2L V8 DIESEL. 1992 GMC C3500HD 6.2L V8 DIESEL. 1993 GMC C3500HD 6.2L V8 DIESEL. Position: Heater To Intake Manifold. Notes: Molded Heater Hose -- CUT TO FIT. WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.