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Archived source page — Walker Walker Model D21d

Archived copy of https://www.walker.com/models/D21d as of July 20, 2026 — for reference only; visit the manufacturer for current specs.

This is a sanitized, script-free snapshot stored by MowerFacts for provenance. Content and trademarks belong to Walker (walker.com). MowerFacts is an independent reference site and is not affiliated with the manufacturer.

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

 
D21d Video Play Button
 

 

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Features

Key Attributes - Compact

Compact

Get Into and Out of Tight Spots

Read More

Key Attributes - Agile

Agile

Be Responsive, Be Profitable

Read More

Key Attributes - Non-Collection

Non-Collection

Option Available

kohler-oil-bottles-filter-set-GRAY

Transmission Oil
Performance System

Enhanced drivetrain protection and performance

D21d Comparison

 

  D21d T27i H24d
Engine Kubota D722 Rehlko ECH749 Rehlko 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) 23 x 10.5-12 AT Tire
Weight 1,000 lbs (454 kg)[1]
1,219 lbs (553 kg)[2]		 815 lbs (370 kg)[1]
1034 lbs (469 kg)[2]		 997 lbs (452 kg)[1]
[3]
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] 51.25 in (130 cm)" H x 66 in (168 cm)" W x 107.75 in (273.7 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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Warranty

2YEARSentire tractor
3YEARSor 3000 hours on drive system*
2YEARSengine
LEARN MORE *Gear Axle Assembly, Hydrostatic Transmissions for C, D, T and Hydrostatic Transaxles for B, H, S, R and C23i

Video

 

Brief

 

Introduction

 

In-Depth

 

Feature: Productivity

 

Inside the Grass Handling System

Gallery

D21d Studio 1
D21d Studio 2
D21d Studio 3
D21d Studio 4
D21d Studio 5
D21d Studio 6
D21d Studio 7
D21d Studio 8
D21d Studio 9
D21d Studio 10
D21d Studio 11
D21d Studio 12
D21d Action 1
D21d Action 2
D21d Action 3
D21d Action 4
D21d Action 5
D21d Action 6
D21d Action 7
D21d Action 8
D21d Action 9
D21d Action 10
D21d Action 11
D21d Action 12

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

Specifications

Engine

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)

Electrical

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

Charging System: 40 Amp Automotive Alternator

Charging Output: 40 Amp DC (Regulated)

Transmission

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

Deck

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

Tires

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

LENGTH

  • 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: 41 in (104 cm)

WIDTH

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

HEIGHT

  • Tractor: 50 in (127 cm)

WEIGHT

  • Tractor Only: 1,000 lbs (454 kg)
  • Tractor with C48 deck: 1,219 lbs (553 kg)

Downloads

Manuals

Released Class Model Type Model S/N Range Manual P/N Download
01/05/2026 Model-D D21d Operator's 189969 - AND ON 7000-27 PDF
06/18/2025 Model-D D21d Parts 189969 - AND ON 7000-26 PDF
05/15/2024 Model-D D21d Operator's 187255 - 189968 7000-25 PDF
03/25/2024 Model-D D21d Parts 187255 - 189968 7000-24 PDF
02/06/2024 Model-D D21d Parts 179940 - 187254 7000-23 PDF
11/19/2022 Model-D D21d Operator's 170133 - 187254 7000-22 PDF
09/07/2022 Model-D D21d Parts 170133 - 179939 7000-21 PDF
05/10/2021 Model-D D21d Parts 168381 - 170132 7000-19 PDF
05/05/2021 Model-D D21d Operator's 168381 - 170132 7000-20 PDF
08/27/2020 Model-D D21d Operator's 159104 - 168380 7000-18 PDF
04/26/2019 Model-D D21d Operator's 154575 - 159103 7000-16 PDF
04/03/2019 Model-D D21d Parts 147167 - 168380 7000-17 PDF
01/15/2018 Model-D D21d Parts 134382 - 147166 7000-15 PDF
10/03/2017 Model-D D21d Operator's 134382 - 154574 7000-14 PDF
01/25/2016 Model-D D21d Operator's 124860 - 134381 7000-13 PDF
01/25/2016 Model-D D21d Parts 124860 - 134381 7000-12 PDF
06/01/2009 Model-D MD Parts 103914 - AND ON 7000-11 PDF
09/15/2007 Model-D MD Parts 92037 - 103913 7000-10 PDF
03/01/2006 Model-D MD Parts 79108 - 92036 7000-9 PDF
02/15/2005 Model-D MD Operator's 76788 - 124859 7000-8 PDF
05/01/2004 Model-D MD Parts 72868 - 79107 7000-7 PDF
12/01/2003 Model-D MD Operator's 53481 - 76787 7000-6 PDF
03/01/2003 Model-D MD Parts 60192 - 72867 7000-5 PDF
06/08/1999 Model-D MD Operator's 29676 - 53480 7000-4 PDF
01/20/1998 Model-D MD Parts 29676 - 60191 7000-2 PDF
03/01/1995 Model-D MD Operator's 16369 - 29675 7000-1 PDF
03/01/1993 Model-D MD Parts 11756 - 29675 7895-1 PDF
04/01/1992 Model-D MD Operator's 11756 - 16368 7895 PDF

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Archived July 20, 2026 from walker.com. Reproduced for reference and provenance only; see the normalized MowerFacts spec sheet for the comparison-ready data.