Walker D21d Zero Turn Mower



incl GST

Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker diesel
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker diesel
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker diesel
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker D21d Diesel Catching Zero Turn Mower
Walker diesel

Key features

  • 20.9 HP Three Cylinder Kubota Engine
  • Professional Catching Mower with Liquid Cooling
  • Powerful and Efficient Diesel Engine

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.

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About the Walker Model D

The Model D is designed with the same footprint as the Model T, making it compact and capable of mowing both small and large properties while also boasting a transverse mounted, 3 cylinder diesel engine and liquid cooling. A self-cleaning, reversing radiator fan keeps the Model D cool and efficient even in the toughest conditions. Weighing in just under 1,200 lbs, the Model D is one of the lightest diesel-equipped commercial mowers on the market.

This protects the turf from matting and rutting, while allowing the Model D to remain well-balanced and agile. Compatible with nearly all Walker mowing decks and add-ons, the Model D is a favorite with municipalities and institutional customers. A non-collection version without the GHS blower and Grass Catcher is also available. The non-collection model features a utility dump-bed in place of the grass catcher.

Standard Features

  • Automatic glow plug preheat
  • Transverse engine mount
  • Liquid cooled with self-cleaning radiator
  • Impressive 34 ft•lb torque
  • High capacity, commercial engine air filtration
  • Precision steering system
  • Forward Speed Control
  • Eaton Model 7 transmission with ductile cast iron gearbox final drive
  • Grammer 4-way adjustable Suspension Seat
  • Tilt-up deck and tilt-open body
  • Flexible deck carrier frame
  • High output 40-amp charging system
  • Grass Handling System® (GHS)
  • 10.5 inch GHS blower
  • Oscillating PowerFil® chute with Grass-Pak® full signal
  • 10 bushel grass catcher

Deck options

Your D21d will come standard with your choice of either the Multi-Deck, capable of either mulching / catching or side discharge, or the standard GHS deck which is collection only. Deck options include either 42" or 48", with a 52" reverse-rotation collection deck also offered as an upgrade.

The Multi Deck is best suited for applications where a relatively even spread between catching / non-catching will be desired.

The standard GHS deck is best suited for those collecting the majority of their lawn and is best suited to catching grass in New Zealand conditions.

To use a cricket analagy: think of the GHS deck as a spin bowler, the best at the one function (catching grass). The Multi-Deck is the all-rounder - good at several functions, not the best at one.

Go inside the Walker GHS (Grass-Handling System):

Walker Diesel

The Walker D21d is the ultimate contractor's mower - offering loads of torque and efficiency with the Kubota diesel engine, and all the other durability and comfort of the Walker T series machines.

Walker Hi-Dump

The Walker D21d comes with manual dump as standard - so you can chose to upgrade to either the power dump or full Hi-Dump® system depending on your needs.

Suspension seat

Your Walker D comes standard with a fully adjustable Grammar suspension seat - providing ultimate comfort for all-day mowing. Includes adjustable armrests.

Walker deck

All Walker collection decks are shaft driven for ultimate durability and power. Choose your T27i with either a standard GHS deck, or the versatile Multi-Deck.

EngineKubota D722
Fuel SystemDiesel
Cooling SystemLiquid & radiator
Displacement719 cc
Max Power20.9 HP @ 3600 RPM
Max Torque34 ft-lbs
Fuel Capacity17.8 L
Grass HandlingCollection
SeatSuspension Seat
Tires18 x 9.5-8 Turf Tire
Weight with Deck534 kg
Dimensions50 in (127 cm)" H x 49.25 in (125 cm)" W x 93 in (236 cm)" L[

Model D Introduction

The Walker Model D brings diesel power to the fully featured Walker commercial mower, making it a favorite among mowing contractors, city councils or universities/schools —anyone wanting top-of-the-line performance and efficiency.

Being diesel, it provides loads of power yet maintains efficiency along with the renowned Kubota reliability for years to come.

Popular upgrades & accessories for the Walker D21

All-terrain tyres

All-terrain tyres

Get more grip on sloping terrain, or in damp or lush conditions, while minimising damage to the lawn surface. (Actual tyres may differ slightly from pictured).



Get your lawn in top health with the Walker maintenance dethatcher. Quick and easy to fit to the front of your deck, the tines help scrape out dead grass and thatch, helping get oxygen, sunlight, feed and moisture to the roots giving you a beautiful lawn. Ideal for autumn and spring use.

Power Dump

Power Dump

The Walker Power Dump provides convenience and time savings to commercial mowing companies and homeowners alike, by giving the operator the ability to dump the grass catcher from the operator seat. A toggle switch operates the 12-volt electric linear actuator that provides the dumping and door-opening action, which completes in about 10 seconds. Comes standard in New Zealand on the C19i model.

Walker Hi-Dump®

Walker Hi-Dump®

The Walker Hi-Dump® allows you to raise the entire catcher and then tips into a skip, or over a fence - all from the seat! Very popular with commercial mowing contractors. Available for all T and D series Walker Mowers as an upgrade.



Wind down after work by mowing your lawns in the dusk using the Walker headlight kit. LED with durable mounts and surrounds, the lights are well positioned for illuminating both sides of the deck.

No-catch deflector

No-catch deflector

The No-Catch Deflector easily installs in the grass catcher door frame to allow "no collection" rear discharge mowing with GHS models. Grass clippings are safely deflected downward and spread across the door opening.

OMC Walker 'Winter kit'

OMC Walker 'Winter kit'

When catching performance is hindered, especially in damp winter conditions or in wetter areas of NZ like the West Coast, try our OMC 'winter' kit - consisting of a large holed catcher screen to increase exhaust airflow, and hi-lift blades to provide more catching airflow.

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