Pacific National XRB class
The Pacific National XRB class are a class of diesel locomotive B units built by Pacific National at South Dynon Locomotive Depot. History
The XRB class were built by Pacific National at its South Dynon Locomotive Depot. They are mechanically similar to the XR class, but are B units without driving cabs. The EMD 16-645E3C engines were sourced second-hand from North America. They were built to operate as booster units on standard gauge interstate freight trains between Melbourne and Perth, and has to led by a locomotive with a conventional driving cab. The units do not have hostler controls for moving them around yards and depots, only being fitted with a dead engine device and park-brake button. Aa at October 2022, all three were stored at Progress Rail's Port Augusta Workshops. References

Co-Co locomotives
Diesel-electric locomotives of Australia
Locomotives with cabless variants
Pacific National diesel locomotives
Railway locomotives introduced in 2005