This is for a set of (8). Our Premium Reman injectors are at the top of the line when it comes to quality. With all new parts in them they are sure to last for a long time to come. These have all the new parts our Basic Remans do but also include new spool valves, solenoid assembly with connectors, fuel plungers, and intensifier pistons. All injector body’s are precision honed and new parts fitted to each individual injector body. These injector’s are as close to new as you can get while still being a reman, they have 100% new parts and the only thing reused are the body’s themselves which are also refinished. This is an exchange service. You can send your cores in first to avoid the up front core charge. These include a 3 year/100k mile warranty.