The Standard Ignition DS 455 SI Fuel Tank Selector Switch is engineered to provide reliable fuel tank selection in vehicles equipped with dual fuel tanks This switch is designed to meet the rigorous demands of today s service professionals ensuring optimal performance and durability Constructed with high grade materials the DS 455 SI switch offers superior electrical conductivity and resistance to wear contributing to the efficient operation of the vehicle s fuel system The switch features a 5 terminal blade connector facilitating straightforward installationd secure electrical connections Its robust design ensures longevity and consistent performance reducing the likelihood of premature failures and minimizing maintenance requirements By incorporating the DS 455 SI Fuel Tank Selector Switch into your vehicle fleet operators can enhance operational efficiency and reduce downtime associated with fuel system issues This switch is compatible with various vehicle models including certain GMC and Chevrolet trucks as specified by the manufacturer For precise fitment and application details refer to the vehicle s service manual or consult with a qualified technician