Watling JCB sell new and used JCB excavators, loaders and other JCB construction machinery. Service engineers were experiencing water ingress issues on the engine to chassis harness connector (known as the interconnect), the resulting corrosion of the connector pins causing loss of connectivity over time. This connector which has a critical role on JCB platforms, is up to 29 way, 12 volts and is an IP69 rated twist lock design. Water ingress was occurring due to capillary penetration of moisture through the gland and connector housings to the contact surface area on multiple pins. Degradation of the connector resulted in expensive and time consuming replacement of connector and loom section.