The Standard Ignition NS 143 SI Neutral Safety Switch is engineered to ensure that a vehicle s engine starts only when the transmission is in Park or Neutral positions thereby preventing unintended vehicle movement This switch is compatible with various Lexus and Toyota models including the 2002 2005 Lexus ES300 2002 2005 Toyota Avalond 2002 2005 Toyota Sienna Constructed with a robust designd high grade materials the NS 143 SI meets the stringent demands of today s service professionals It features copper alloy conductors that ensure superior electrical conductivity with low resistive losses enhancing the reliability and longevity of the switch The switch is 100 tested to verify both mechanical and electrical switching performance ensuring consistent and dependable operation Its bolt ottachment method and rectangular connector shape facilitate straightforward installation reducing downtime and labor costs The NS 143 SI is designed to withstand the rigors of daily use providing a durable solution that minimizes the risk of transmission related starting issues By incorporating this neutral safety switch into your fleet vehicles you can enhance operational safety and reduce maintenance costs associated with transmissiond starting system failures