The Standard Ignition DS 240 SI Door Jamb Switch is a direct fit replacement component designed to restore the functionality of vehicle door jambs This switch is engineered to meet or exceed original equipment specifications ensuring reliable performance and ease of installation Constructed with high quality materials it withstands the demands of daily use providing durability and longevity The DS 240 SI switch is compatible with a wide range of vehicles including models from Buick GMC and Plymouth produced between 1970 and 1999 Its design features a 3 8 24 thread size and a plunger size of 0 64 inches facilitating a secure and precise fit The switch operates with a blade terminal type and includes a male connector with a flat shape ensuring a stable electrical connection The mounting type is direct allowing for straightforward installation without the need for additional modifications The switch is finished in black silver and white with materials comprising aluminum plastic and rubber offering a combination of strength and flexibility By replacing a faulty door jamb switch with the DS 240 SI fleet operators can ensure that door related electrical functions such as interior lighting and warning signals operate correctly thereby maintaining vehicle safety and operational efficiency