Temperature Control SMP's Temperature Control Division Four Seasons, manufactures, remanufactures and distributes a full line of replacement components for mobile climate control and cooling systems. Four Seasons division is the largest aftermarket automotive temperature control parts supplier in the industry and the largest compressor remanufacturer in the world. We supply professional quality products for import and domestic, early and late-model vehicles and to all market channels throughout the United States and around the world. Two key categories are new and re-engineered compressors. The compressor is the heart of every A/C system creating the pressure to move refrigerant through the other components. Other major categories engineered, manufactured and distributed by SMP’s Four Seasons division are accumulator/filter driers, hose assemblies and fittings, blower and cooling fan motors, evaporators, expansion devices, window lift motors and washer pumps, fan clutches, transmission coolers, heater valves, water outlets and a myriad of tools, equipment and related chemicals.