The Cat® AD45 Underground Truck delivers all the power, performance and reliability you expect from the AD45 — but the latest model also offers an an advanced EU Stage V compliant engine and aftertreatment solution that meets the strictest emissions standards, lowers your carbon footprint and improves air quality in your mine. In addition, a retrofit solution is available that allows you to retrofit the previous model, the AD45B, to meet the same strict standards. This ultra-clean diesel machine delivers superior productivity thanks to its ideal match with the next generation Cat R1700 underground loader and is technology-enhanced with features that improve productivity, boost uptime and keep operators and personnel safer on the job.