For 1991 GMC R3500 Water Outlet O-Ring Victor Reinz 77243KS 5.7L V8
$15.94
1991 GMC R3500 5.7L V8. Notes: Engine Coolant Outlet O-Ring -- 1.954in I.D.; Improved Design. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
