Keep the primary ignition circuit connected with the Standard Ignition Distributor Primary Lead Wire FDL-46. This low-voltage lead wire routes primary current to the distributor, and it drops in as a direct-fit replacement across a broad range of vintage 1964–1975 Ford, Lincoln, and Mercury vehicles — including the Ford Bronco, F-100, Mustang, Galaxie 500, Ranchero, and Thunderbird, the Lincoln Continental and Mark IV, and the Mercury Cougar, Marquis, and Montego. See the Buyer's Guide tab for the full application list.
- Function: Carries low-voltage primary current in the distributor ignition circuit.
- Direct-fit replacement: Designed to install on the listed applications.
- Replaces a damaged lead: If a cracked, corroded, or broken original lead is the cause of a weak or intermittent connection, this replaces it.
Over decades of heat and vibration, a primary lead's insulation can harden and crack and its terminals can corrode. Signs this part may need replacing include intermittent no-start conditions, an engine that cuts out, or visibly damaged wire or terminals at the distributor. Diagnose the cause before replacing.
Interchange: DL63 · F814 · LW40 · C7AZ12216A · C7AZ12216B · C7DF12216A · C7DZ12216A · C7TF12216A · C7TZ12216A · C7VF12216A · C7VY12216A · C7VY12216F · DW34 · 12337045 · 19112974 · FDL46T. Manufacturer part number FDL-46 (also FDL46).
This part cross-references / interchanges with the following part numbers:
DL63, F814, LW40, C7AZ12216A, C7AZ12216B, C7DF12216A, C7DZ12216A, C7TF12216A, C7TZ12216A, C7VF12216A, C7VY12216A, C7VY12216F, DW34, 12337045, 19112974, FDL46T
