Kubota ZD-300 Series Zero-Turn Mowers Specifications
 
Model ZD321 ZD326 ZD331
ZD321N-54 ZD321-60 ZD326P-60 ZD331P-60 ZD331LP-72
Engine Model Kubota D782 Kubota D1005 Kubota D1305
Type Diesel Liquid-cooled (3 cyl.)
Max. horsepower (gross) 21HP@3200rpm 26HP@3200rpm 31HP@3000rpm
Total Displacement 47.48 cu. in. 61.08 cu. in. 76.98 cu. in.
Starting system Key switch-super glow
Dimensions Overall length 86.0 in. 86.0 in. 87.4 in. 87.4 in. 91.9 in.
Overall width w/ mower 66.1 in. 75.2 in. 75.2 in. 75.2 in. 87.5 in.
Overall width w/o mower 53.7 in. 57.5 in.
Overall height (w/ROPS upright) 75.2 in.
Overall height (w/ROPS folded) 61.2 in.
Wheel base 55.5 in. 60.0 in.
Tread Front 38.4 in. 42.1 in.
Rear 43.3 in. 45.3 in.
Tire size Front 15x6.0-6 15x6.0-6 Non Flat
Rear 26x10.5-12 26x12.0-12
Weight (w/mower) 1671 lbs. 1700 lbs. 1757 lbs. 1773 lbs. 1812 lbs.
Transmission system 2-HST w/Gear
Speed control 2-hand lever
Travel speed range Front 0-10.6 mph
Rear 0-5.3 mph
Brake type Wet multi-disks, foot operated
PTO Type Shaft drive
Clutch type Wet multi disks
PTO brake Wet single disk
Mower Deck Model RCK54P-321Z RCK60P-331Z RCK60P-331Z RCK60P-331Z RCK72P-331Z
Mower lift system Hydraulic
Mower deck type Fabricated deck
Deck depth 6.0 in. 6.5 in.
Deck Steel Thickness 0.18 in.,  0.17 in.
Anti-scalp roller Swivel
Cutting width of mower 54 in 60 in 72 in.
Number of blades 3 blades
Cutting height 1 in ~ 5 in  1/4" increments
Mounting system of mower Parallel linkage
Blade tip speed (max.) 17200 FPM 18200 FPM 18200 FPM 18200 FPM 18100 FPM
Seat adjustment One touch system
Step deck Full flat
Engine stop system Key stop
Fuel tank capacity 11.9 gal
Battery 12V, 51 R, 450 CCA@0°F, 70 MIN.RC.
Alternator capacity 14 Volts 14 Amps
Water temperature indicator Standard
Hour meter Standard
Fuel gauge Electric
The company reserves the right to change the above specifications without notice.

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