This is a service purchase. You are buying our rebuilding services for your IH International Harvester rotary style injection pump fitted to most all the IH International Harvester diesel's like the one listed in the picture. The picture shows a pump on our test stand during calibration. This is the same stand that we calibrate your injection pump on. Every pump is fully calibrated back to factory new specifications before being returned to the customer. This insures that you get a quality repair from our company.