This set of spark plugs from Splitfire is perfect for small engines that require a reliable and high-performance ignition system. With a thread diameter of 14mm and a voltage of 12V, these spark plugs are compatible with a wide range of engines. The copper material ensures efficient heat transfer and a longer lifespan. These spark plugs are interchangeable with part numbers 456, 845, XST458, and W14LM-U, making them a versatile option for various vehicles. They are manufactured in the United States and are not vintage parts. Improve the performance of your engine with these Splitfire SF45F spark plugs.


Exact NOS item lot is shown. Made in the USA. Please review our business policies in our store for information regarding returns, shipping and warranties.