Toro
Accessory

Model # 420 Official Toro dethatcher

Here are the diagrams and repair parts for Official Toro 420 dethatcher, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 39 parts  |

Bolt Spacer 436531
#21

Dethatcher diagram

Bolt spacer

Part #436531

In Stock
Washer 356303
#34

Dethatcher diagram

Washer

Part #356303

In Stock
Control Lever 389048
#36

Dethatcher diagram

Control lever

Part #389048

The manufacturer no longer makes this part, and there's no substitute part

Engine - 5 H.p. Horiz. B & S 313011
#24

Dethatcher diagram

Engine - 5 h.p. horiz. b & s

Part #313011

The manufacturer no longer makes this part, and there's no substitute part

Flapper - Rear 667306
#2

Dethatcher diagram

Flapper - rear

Part #667306

The manufacturer no longer makes this part, and there's no substitute part

Wheel - Rear  (2) 484501
#15

Dethatcher diagram

Wheel - rear (2)

Part #484501

The manufacturer no longer makes this part, and there's no substitute part

Bar - Engine Mounting  (2) 761402
#27

Dethatcher diagram

Bar - engine mounting (2)

Part #761402

The manufacturer no longer makes this part, and there's no substitute part

Blade - Cutter (8) 732406
#7

Dethatcher diagram

Blade - cutter (8)

Part #732406

The manufacturer no longer makes this part, and there's no substitute part

Bearing - Flange (l.h.) 307254
#11

Dethatcher diagram

Bearing - flange (l.h.)

Part #307254

The manufacturer no longer makes this part, and there's no substitute part

Bearing - Flange (r.h.) 307255
#14

Dethatcher diagram

Bearing - flange (r.h.)

Part #307255

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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