Review on 🔥 High Performance Motorcraft WR5934 Spark Plug Wire Set: Superior Ignition & Efficient Combustion by Elvis Kohl

Ignition Wires as close to factory as possible. No, they don't have cylinder numbers on them. One or two are about an inch from the original, but they fit. The quality is excellent. The first set served this truck for 168,000 miles before it broke down. USE DIELECTRIC GREASE! Why? A spark can eventually punch through the porcelain and you will have a backfire. This is called CO2 tracking. This is exactly what happened to this customer's F150. Don't skimp on spark plug wires. I'm a mechanic and have had too many problems with "cheap" aftermarket wiring harnesses. Fords love Motorcraft ignition components. Spark plugs, wires and coils are no exception. Be original and stay out of trouble.