The Standard Ignition DS 749 SI Multi Function Column Switch is engineered to meet the rigorous demands of modern service professionals Designed as an OE replacement this switch offers a direct fit for various Ford models including the F 150 F 250 F 350 F 450 F 550 Super Duty and F 800 from the late 1990s to early 2000s It integrates multiple functions such as turn signal headlight and windshield wiper controls into a single durable component streamlining vehicle operationd reducing the need for multiple separate switches Constructed with high grade materials the DS 749 SI ensures longevity and consistent performance even under challenging conditions Its robust designd high grade materials meet the stringent demands of today s service professionals The copper alloy conductors ensure superior electrical conductivity with low resistive losses The part is 100 tested to verify both mechanical and electrical switching performance Decades of industry leading research and development focused on meeting the technician s needs As a global manufacturer of original equipment ignition products Standard Ignition maintains complete quality control throughout the manufacturing process from componentry to finished product