cciyu New Universal Cab Clearance Marker Roof Lights T10 Harness Replacement fit for Truck SUV RV (Universal T10 Wire Wiring Harness) Direct replacement for OEM factory stock cab marker covers. Perfect fit No leakage. Neither any cutting, modifying nor wiring is needed. Compatibility: For Ford F-250 / F-350 / F-450 / F-550 Super Duty WITH factory stock cab marker For Ford E-150 / E-250 / E-350 / E-450 Super Duty / E-551 Super Duty WITH factory stock cab marker T10 LED Bulb Socket Connector Automotive Vehicle Top Clearance Light Assemblies