This set of ignition coils is designed to fit perfectly on 2014-2019 Mazda 3, 6, and CX5 models with a L4 2.5L engine. They are a great replacement for the PE0118100A NOS part number and are compatible with several other part numbers such as AEP83426401S, NGK93501, 93501, UF656, C1837, and 1788527. These ignition coils are made in China and have a matte finish. They are coil on plug type and require no external resistor. The set is not universal and is not a vintage part. They are designed to be placed on the front of the vehicle and are not a performance part. Exact item set is shown. New open box ignition coil set with partial original packaging. Made in China. No returns on installed items or partial sets. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.