What is An Ignition coil ？ Ignition coils, the body of which consists mainly of epoxy resin, rubber and plastic.ignition coil is a voltage transformer, can transfer the supply voltage(about 14V) into high voltage(about 40KV)High voltage from ignition coil will be directly or by ignition cable conducted to spark plug，then can ignite fuel.Meanwhile, ignition of the fuel needs to meet the following two conditions:One is a powerful high voltage , the other is have enough energy. Pin：4 pins Package Includes：4 x Ignition Coil Pack Replaces Part Numbers： UF316 610-58576 9091902240 90919-02240 90080-19021 9008019021 5C1293 E346 52-1689 IC446 UF-316 What is our mission? A brand focus on the field of ignition coils. Our ignition coils meet or exceed OEM performance. With ultra-high technology inputs and strict quality of control. To provide quality products, make customers purchase with confidence. Applicable to the following vehicles: Replacement for Scion Models:Replacement for 2004-2006 xA L4 1.5LReplacement for 2004-2006 xB L4 1.5L Replacement for Toyota Models:Replacement for 2000-2005 Echo L4 1.5LReplacement for 2001-2009 Prius L4 1.5LReplacement for 2012-2019 Prius C L4 1.5L 91cidReplacement for 2004-2005 Yaris L4 1.3L 79cidReplacement for 2006-2018 Yaris L4 1.5L Why Choose Our Ignition Coils？ Improve power by 10% to keep away from engine jitterFast ignition and full combustion of saving Updating materials 15% more durability than comparable Strict Quality Standards All of our ignition coils adopt to intelligent electronic control, precision machinery , so that provide proper higher level of voltage to ignition coils ,and greatly improve ignition efficiency. Maintenance Tips： Take care to refrain from the ignition coil parts from heat or moistureRegularly check, clean and fasten the joints in the circuit ,keep away from short -circuitDon't spark when the engine is not working, keep the ignition switch off when and Why should you replace ignition coils? Ignition coil due to a long time in high temperature, vibration condition, driving longer, may be aging or even broken. It could be engine shaking abnormally, start-up difficulty or the"Check Engine Light" turns on, even misfire, backfiring, etc. If it is not replaced in time it will have an impact on the engine's performance, and if one of the coils goes defective, probably going to be defective in the near future. Symbol of bad ignition coil： Check Engine Light On Lack of motivation Hard to shift Poor Fuel Economy Misfiring Engine Jerking and Vibrating