Standard Motor Products SS621 Starter Solenoid 12V 85 Amp Heavy Duty

The Standard Motor Products SS621 is a heavy-duty 12-volt, 85-amp starter solenoid designed for continuous-duty operation in demanding applications. This professional-grade solenoid features 6 male terminals with round connectors and comes complete with mounting bracket and hardware for straightforward installation.

Key Features:

• 12-volt electrical system with 85-amp capacity for reliable high-current performance
• Heavy-duty copper contacts reduce arcing effects and extend service life
• Pure copper windings create a stronger magnetic field than standard solenoids
• Cadmium-plated copper discs and solid contact bolts minimize voltage drop
• Polyester-insulated magnet wire provides superior protection against electrical overload
• Pure copper battery terminal studs reduce resistance for higher current flow
• Continuous-duty rated for applications requiring sustained operation
• Includes mounting bracket and hardware for complete installation

As a global manufacturer of original equipment ignition and electrical products, Standard Motor Products maintains complete quality control throughout the manufacturing process. This starter solenoid is engineered to deliver full battery power to the starter while providing exceptional durability and performance in even the most challenging environments. The polished silver finish provides corrosion resistance for long-term reliability.