This heavy-duty starter solenoid switch is engineered for reliable performance in tractors and heavy trucks. Operating at 12V with an impressive 85Amp capacity, this 4-pole ground solenoid switch ensures dependable starting power when you need it most. The robust metal construction features copper terminals for excellent conductivity and corrosion resistance. The unit comes with secure mounting brackets and pre-drilled holes for straightforward installation. Compatible with various tractor models including D10 and D12, this solenoid switch is built to withstand demanding conditions. The heavy-duty design includes reinforced contact points and weather-resistant sealing to maintain consistent operation. Whether you're maintaining a single vehicle or managing a fleet, this starter solenoid switch delivers the durability and performance required for heavy equipment applications.