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Toro PROLINE™ HDX 54" (137 cm) Mid-Size Mower (50-State Model) (44454)

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Curb Clearance

Rear tires and single-point height of cut adjustment make clearing curbs easy.

Single-Point Height of Cut Adjustment

Changing cut lengths on the go is a snap with a single-point height of cut adjustment.

20-Inch Rear Tires

Get more control and maneuverability on side hills.

Removable Deck Cover

Easy maintenance with a removable deck cover.

Two-Wheel Sulky (Sold Separately)

The 2-wheel sulky (sold separately) simply folds away, meaning no need to attach and remove it when trailering.


  • Drive With Ease - Shred grass in no time with the easy-to-learn twin-lever controls and drive assist with three settings and upgraded hydros.
  • Mowing Muscle - Ensure you never lose a job because of broken equipment with a Kawasaki FX engine that drives .204" blades for a gorgeous, professional cut.
  • Made to Last - Your Toro is also built to take on years of rough rides with a bull nose bumper, 7/10-gauge deck, rubber discharge chute and 20" wheels with curb clearance.
  • Quick Adjustment - Changing cut lengths on the go is a snap with a single-point height of cut adjustment.


Engine 22 HP* Kawasaki® FX
Fuel Capacity 5 gallons (19 L)
Mowing Speed Forward: 7 mph (11.3 kph) Reverse: 3 mph (4.8 kph)
Cutting Width 54" (137 cm)
Height of Cut 1.5" (3.8 cm) - 4.5" (11.4 cm)
Number of Blades 3
Caster Tires 11" x 4" - 5" (27.9 x 10 - 12.7 cm); smooth
Deck Design 4.5" (11.43 cm) deck depth, 54" (137 cm) 7/10-Gauge High-Strength Steel
Discharge Chute Rubber
Drive Tires 20" x 9.5" - 8" (50.8 x 24 - 20.3 cm)
Engine Displacement 726cc
Height 45.9 in (116.6 cm)
Length 79.8 in (202.6 cm)
Spindle Housing Al
Steering Controls Twin-Lever
Transmission Hydro-Gear ZT-3100 135-0139
Width 55.1 in (140 cm) with chute up; 69.2 in (175.8 cm) with chute down
Weight 695 lbs (315 kg)
Disclaimer *The gross horsepower of these engines were laboratory rated at t 3,600 RPM SAE J1940 and SAE J1995 to meet safety, emission and operating requirements, the actual engine horsepower on this mower may be significantly different.