The Standard Ignition SS 216 SI Starter Solenoid 12V is engineered to meet the rigorous demands of modern commercial vehicles ensuring reliable engine starting performance Designed with heavy duty copper contacts this solenoid minimizes arcing thereby extending its operational lifespan The incorporation of pure copper windings enhances the magnetic field strength facilitating efficient current flow and reducing voltage drop Additionally the solenoid features polyester insulated magnet wire cadmium plated copper discs and solid contact bolts all contributing to superior electrical conductivity and protectiogainst electrical overloads The inclusion of pure copper battery terminal studs further reduces resistance enabling higher current flow even in high temperature environments This robust construction ensures optimal performance and durability making the SS 216 SI an essential component for maintaining the operational efficiency of commercial vehicles