ECCPP Ignition Coils Pack of 6 Compatible Nissan 350Z Infiniti G35/M35/FX35 3.5L 2003-2008 Replacement UF401 C1439 5C1430 IGNITION COIL PACK FITMENT - Replacement ignition coil for Nissan 350Z Infiniti G35/M35/FX35 3.5L 2003 2004 2005 2006 2007 2008 HIGH QUALITY REPLACEMENT - Made of top quality materials, for higher stability and reliability, meet or exceed OEM standards, it helps solve the issue caused by bad coils such as shake and eliminate misfire FUNCTIONS - This new premium ignition coil can fit your vehicles perfectly and produce a high output energy, which can keep your engine running well and smoothly BUYER NOTICE - Please read the fitment list carefully beforehand to avoid ordering the improper coils, remember to prevent putting the ignition coils under the hot or wet environment COMPATIBLE PART NUMBERS - 22448-AL615 22448-AL61C CLS1065 UF401 50076 5C1430 C1439 1788317 E421 C-689 Preventing the ignition coil being heated or damp Turning off the ignition coil when the engine does not work Checking, clearing the ignition coil and tightening the connector in order to avoid short circuit or ground Controlling the engine capability to prevent excerssive voltage Changing the spark plug regularly