Case Construction Equipment has introduced three new F Series wheel loader models. The new machines provide faster acceleration, quicker cycle times and higher travel speeds while delivering as much as 17% greater fuel efficiency. The new Case 721F, 821F and 921F wheel loaders feature a 6.7-liter Tier IV-Interim-certified engine, rated at 179, 211 and 242 hp, respectively. The Case F Series wheel loaders use proven selective catalytic reduction (SCR) technology to meet Tier IV Interim emissions standards while also delivering increased power and improved fuel efficiency.