Durability: #OE: UF491 Compatible with# D522C, 12578224, 12578244, 12589623, 12629646, 12638824, UF645 Housing made of thermoplastic for withstands heat stress, the primary and secondary bobbins used 100% pure copper windings provide higher resistance to improve durability.
Features of spark plug: We choose unique ceramic and tapered ground electrode double iridium spark plug, increases ignitability and minimizes quenching make sure your car can have a new life after being installed, have a much longer working life, can work 100000 kilometers, consistent and stable spark. The car will start quickly and speed up in a short time.
When you need to replace: If your car has been used for a long time(over 80000km), a faulty ignition coil & spark plug may result in engine misfire, rough engine idle, car shaking, decrease in power, poor fuel economy and start-up failure, speeding up slowly, and increasing fuel consumption, you may need to change a new set of spark plugs and coil packs.
12 Months Warranty: CMRDQD ignition coil and spark plug can offer you a professional user experience and 12 months warranty lifetime after-sales service. You will get 4pcs Top quality ignition coils,4pcs Iridium spark plugs, you can choose it with confidence.