Model D21d

Industrial diesel power with impressive quality and finesse

D21d Model Overview

The D21d is a premium commercial GHS mower with impressive industrial power and agile, premium-quality mowing. Featuring the Kubota D722 liquid cooled, diesel engine, and a standard Grammer suspension seat, the D21d is designed for all day comfort and long machine life.

Type: Collection
Power: 20.9 HP
Engine: Kubota Diesel
Ideal Application: 
Commercial, Municipal and Institutional Properties
Key Attributes: Efficient, High Torque, Versatile
Standard Options: 18 x 9.5-8 Turf Tire, Suspension Seat

Popular Add-ons:
Implement Hitch
Two-Stage Snowblower
Loader Bucket

D21d Video Play Button


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Key Attributes

Key Attributes - Compact


Get Into and Out of Tight Spots

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Key Attributes - Agile


Be Responsive, Be Profitable

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Key Attributes - Non-Collection


Option Available


Transmission Oil
Performance System

Enhanced drivetrain protection and performance

D21d Comparison


  D21d T27i H24d
Engine Kubota D722 Kohler ECH749 Kohler KDW1003
Fuel System Diesel EFI Diesel
Cooling System Liquid & radiator Air Liquid & radiator
Displacement 719 cc (43.9 cu. in.) 747 cc (45.6 cu. in.) 1028 cc (62.7 cu. in.)
Max Power 20.9 HP @ 3600 RPM 26.5 HP @ 3600 RPM 23.7 HP @ 3600 RPM
Max Torque 34 ft-lbs 40 ft-lbs 36.8 ft-lbs
Fuel Capacity 4.7 gal (17.8 liter) 4.7 gal (17.8 liter) 9.4 gal (35.6 liter) Two Independent 4.7 Gallon Tanks with Selector Valve
Grass Handling Collection Collection Non-Collection
Seat Suspension Seat Comfort Seat Suspension Seat
Tires 18 x 9.5-8 Turf Tire 18 x 9.50-8 (Pneumatic 4-Ply, Standard) 22 x 10.5-12 Turf Tire
Weight 959 lbs (435 kg)[1]
1178 lbs (534 kg)[2]
787 lbs (357 kg)[1]
1006 lbs (457 kg)[2]
997 lbs (452 kg)[1]
Dimensions 50 in (127 cm)" H x 49.25 in (125 cm)" W x 93 in (236 cm)" L[2] 50 in (127 cm)" H x 49.25 in (125 cm)" W x 93 in (236 cm)" L[2] 36.625 in (93 cm)" H x 66 in (168 cm)" W x 107 in (272 cm)" L[3]

[1] Tractor only. [2] Tractor with C48 deck. [3] Tractor with S60 deck. * Rops folded.

Own A D21d

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Calculate Productivity Savings


2YEARSentire tractor
3YEARSor 3000 hours on drive system*
LEARN MORE *Gear Axle Assembly, Hydrostatic Transmissions for C, D, T and Hydrostatic Transaxles for B, H, S, R









Feature: Productivity


Inside the Grass Handling System

Financing Options

With financing options from both Sheffield and Yard Card, we have a program perfect for your needs. With the Sheffield program, you may be eligible for: No Monthly interest for 48 months with Equal Payments or Deferred Payments for up to 8 months. With Sheffield, You can own and operate your Walker Mower all season before making your first payment. Imagine paying off your machine in a single payment with your extra profits thanks to the Walker Productivity Advantage.

Investigate all of our retail financing offers currently available for both commercial and private customers.

Current Financing Offers



Manufacturer: Kubota

Model: D722

Displacement: 719 cc (43.9 cu. in.)

Max Power: 20.9 HP @ 3600 RPM

Max Torque: 34 ft-lbs

Cooling System: Liquid & radiator

Cooling Fan: Electric radiator cooling fan with reversible self-cleaning action

Fuel: Diesel (2-D)

Fuel Capacity: 4.7 gal (17.8 liter)


Battery: 12 Volt, 41AH, 340 CCA (Interstate U1-SP40)

Charging System: 40 Amp Automotive Alternator

Charging Output: 40 Amp DC (Regulated)


Manufacturer/Model: Dual Hydrostatic Eaton Model 7 transmission with ductile cast iron final drive, Each Wheel Independently Driven

Steering: Hand Lever Control, Individual Wheel

Forward Speed Control: Precision Friction Lock Lever, Cruise Control, with Neutral-Park Position

Parking Brake: Mechanical Pin Lock in Transmission Gear

Forward MPH (km/h): 0-6.5 MPH (0-10.5 km/h) Infinitely Variable

Neutral: Transmission Release by Manual Dump Valve

Blade Drive

PTO Shaft: Quick Disconnect Splined Shaft with Two (2) High-Speed U-Joints

Blade Drive Clutch and Brake: Manual Belt Tightener Clutch and Band Brake [Stops Blades within Five (5) Seconds of Disengagement]

Grass Handling

Blower: 10.5 in. Diameter, Three-Blade Paddle Wheel

Max. Blower RPM: 4000 RPM

Grass Catcher Capacity: 93 Gal / 10.0 Bu / 352 L

Full Signal: Grass-Pak® full signal alerts operator when catcher box is full

Powerfil®: Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor Spreads Material throughout Interior of Catcher @ 35 Cycles/Min


Recommended Cut Width: Collection: 36 to 52 in. (91 to 132 cm), Side Discharge 36 to 74 in. (91 to 188 cm) Mulch 36 to 52 in. (91 to 132 cm)

Cutting Height: 1 to 4 in (2.5 to 10 cm) or 1.5 to 4.5 in (4 to 11.5 cm) (DS52 and DS62 Belt Driven SD Decks Only)

Deck Suspension: Independent Torsion-Flex Frame with Caster Wheels and Counterweight Springs


Drive: 18 x 9.50-8 (Pneumatic 4-Ply, Standard)

Tailwheel: 13 x 5.00-6 (pneumatic 4-ply, standard dual) 13 x 8.00-6 (pneumatic 4-ply, optional single)

Deck Caster: 8 x 3.00-4 Foamed Rubber, All decks except DS52, DS62, DS74 8 x 3.00-4 Pneumatic 4-Ply (Optional)

Size & Weight


  • Tractor Only: 64.5 in (164 cm)
  • Tractor with C48 deck: 93 in (236 cm)
  • Tractor with deck tilted: 77 in (196 cm)
  • Tractor wheel base: 42.25 in (107 cm)


  • Tractor Only (Outside Tire): 39 in (99 cm)
  • Tractor with C48 deck: 49.25 in (125 cm)


  • Tractor: 50 in (127 cm)


  • Tractor Only: 959 lbs (435 kg)
  • Tractor with C48 deck: 1178 lbs (534 kg)



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