Speed Queen
Washer

Model #SWT421LM Speed Queen washer

Here are the repair parts and diagrams for your Speed Queen SWT421LM washer. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 266 parts

Washer Siphon Break Kit

#11

Drain hoses Diagram

Washer siphon break kit

Part #562P3

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

Washer Spanner Nut Wrench

#4

Tools 1 Diagram

$11.38

In Stock

Washer Lid Switch Assembly

#1

Lid switch Diagram

Washer lid switch assembly

Part #37631

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

Washer Fill Hose

#5A

Valve assy Diagram

Washer fill hose

Part #20617

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

Washer Suspension Spring

#6

Tub assy Diagram

Washer suspension spring

Part #37576

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

Commercial Washer Agitator Cap

#15

Agitator assy Diagram

Commercial washer agitator cap

Part #36515

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

Bracket

#7

Meter case Diagram

Bracket

Part #30642

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

Bumper

#14

Control panel Diagram

Bumper

Part #32648

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

Screw

#2

Valve assy Diagram

Screw

Part #33562

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

Washer

#3

Power cord Diagram

Washer

Part #21735

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

Symptoms common to all washers

Choose a symptom to see related washer repairs.

Main causes: clogged drain hose, house drain clogged, bad drain pump, water-level pressure switch failure, bad control board or timer
Main causes: water heater failure, bad water temperature switch, faulty control board, bad water valve, faulty water temperature sensor
Main causes: bad lid switch or door lock, bad timer or electronic control board, wiring failure, bad water inlet valve assembly
Main causes: worn agitator dogs, bad clutch, broken motor coupler, shifter assembly failure, broken door lock, suspension component failure
Main causes: unbalanced load, loose spanner nut, worn drive block, broken shock absorber or suspension spring, debris in drain pump
Main causes: broken lid switch or lid lock, bad pressure switch, broken shifter assembly, faulty control system
Main causes: lack of electrical power, wiring failure, bad power cord, electronic control board failure, bad user interface board
Main causes: leaky water inlet valve, faulty water-level pressure switch, bad electronic control board
Main causes: no water supply, bad water valves, water-level pressure switch failure, control system failure, bad door lock or lid switch

Articles and videos common to all washers

Use the advice and tips in these articles and videos to get the most out of your washer.

January 13, 2018

Troubleshooting excessive vibration during spin cycle on a washer

By Sears PartsDirect staff

If the washer is a-rockin', we can explain.

October 26, 2016

How to repair broken or damaged wires video

By Sears PartsDirect staff

Learn how to repair broken, frayed or damaged wires in your appliances.

January 18, 2016

How to use a multimeter to test electrical parts video

By Sears PartsDirect staff

Learn how to use a multimeter to check for wiring problems in an appliance that's not working