ZD Mowers
MODEL	ZD18F	ZD21F	ZD28F
Engine	Kubota E-TVCS (3-cylinder)	Kubota E-TVCS (3-cylinder)	Kubota E-TVCS (3-cylinder)
Horsepower	18	21	28
Displacement	43.9 cubic inches	47.5 cubic inches	68.5 cubic inches
PTO System	Hydraulic Multi-disc	Hydraulic Multi-disc	Hydraulic Multi-disc
Speeds (forward/reverse)	9.1 / 5.0	9.4 / 5.2	9.3 / 5.2
Mower Drive Method	Drive Shaft	Drive Shaft	Drive Shaft
Foldable ROPS	Standard*	Standard*	Standard*
Mower Deck	Stamped Available in 54 and 60 in.	Stamped Available in 60 in.	Stamped Available in 60 and 72 in.
Mower Lift Type	Hydraulic	Hydraulic	Hydraulic
Transport Width	66.5 inches	74 inches	75 inches
Width (Chute Up)	56.5 inches	63.0 inches	78.0 inches
Width of Cut	54 inches	60 inches	72 inches
Thickness of Deck	10 gauge	9 gauge	9 gauge
Number of Blades	3	3	3
Diameter of Spindles	1 inch	1 inch	1 inch
Blade Drive Method	Multi-Belt	Multi-Belt	Multi-Belt
Anti-Scalp Rollers	Adjustable	Adjustable	Adjustable