STANT ST1-180 Thermostat Nissan L & A Series Engines Datsun 510 S30 Skyline #D14 Returns:  Please ensure you are purchasing the correct part as we only accept returns if the item is deemed faulty by a licenced mechanic.  Upon return of the item, our mechanical team will ensure it is indeed faulty and a replacement will be sent.  If no replacement is available we will opt to refund but only in that circumstance.  All return costs are at the buyers expense.