Ensun E2TZ12A342A Diesel Glow Plug Pack of 8 Dual Coils Fast Start Compatible with 19871994 IDI 69 73L F250 F350 F59 E250 E350 replace ZD9

All Glow Plugs form Ensun are Dual Coilstwo heating elements instead of just one fast start in cold weather Threads are designed for strength and plated to prevent seizing Engineered to tight tolerances to deliver excellent performance Glow plugs usually last for up to 50000 miles but will gradually wear out due to constant use Poorquality plugs or frequent use in hard or cold starting situations may cause some plugs to fail sooner Signs that your glow plugs need to be replaced include 1st Misfiring 2nd Rough idle 3rd Decreased fuel economy 4th White or black smoke when starting 5th Hard starting Direct replacement for a proper fit and 100 tested before shipping