Two new Caterpillar H-Series medium wheel loaders—the 966H and 972H—feature key changes to boost productivity and reduce owning and operating costs. The Peoria, Ill.-based Caterpillar offers new engines featuring ACERT technology and provide increased power and U.S. EPA Tier 3 emissions compliance for the new loaders. A new load-sensing hydraulic implement system, which is proprietary to Caterpillar, works more efficiently for improved fuel benefits of 4% to 7% and a 20% increase in lift force over previous models.