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Speed Queen
Washer

Model # SWFX74NN4000 Official Speed Queen commercial washer

Here are the diagrams and repair parts for Official Speed Queen SWFX74NN4000 commercial washer, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 235 parts  |
Screw 503688
Screw

Part #503688

Replaced by #WP3390631

?
Manufacturer substitution
This part replaces 503688. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
In Stock
Gasket 802427
#18

Pump assy diagram

Gasket

Part #802427

$39.02
In Stock
Switch 504570
#12

Control assy diagram

Switch

Part #504570

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

Commercial Laundry Appliance Coin Box Ratchet Tool 310P4
#2

Tools diagram

Commercial laundry appliance coin box ratchet tool

Part #310P4

$46.62
In Stock
Rod Assembly 800666
#1

Pulley assy diagram

Rod assembly

Part #800666

$145.18 | 
8% OFF Phone Price : $157.18
In Stock
Control Assembly 802400P
#6

Control panel diagram

Control assembly

Part #802400P

$756.81 | 
$12.00 OFF Phone Price : $768.81
In Stock
Control Shield 801061
#3

Motor assy diagram

Control shield

Part #801061

$37.60
In Stock
Label 800632
#3

Shipping assy diagram

Label

Part #800632

$2960.94
In Stock
Overlay 38717
#8

Wrapper assy diagram

Overlay

Part #38717

$17.69
In Stock
Hardware Kit 838P3
#NI

Pulley assy diagram

Hardware kit

Part #838P3

$105.18
In Stock

Most common symptoms to help you fix your washers

Choose a symptom to see related washer repairs.

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Why is the water in my washing machine the wrong temperature?

Main causes: water heater failure, bad water temperature switch, faulty control board, bad water valve, faulty water tem…

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Why does my washing machine overfill?

Main causes: leaky water inlet valve, faulty water-level pressure switch, bad electronic control board…

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Why doesn't my washing machine work at all?

Main causes: lack of electrical power, wiring failure, bad power cord, electronic control board failure, bad user interf…

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Why your washing machine won't finish its cycle

Main causes: broken lid switch or lid lock, bad pressure switch, broken shifter assembly, faulty control system…

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Why won't my washing machine agitate or spin?

Main causes: worn agitator dogs, bad clutch, broken motor coupler, shifter assembly failure, broken door lock, suspensio…

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Why won't my washing machine fill?

Main causes: no water supply, bad water valves, water-level pressure switch failure, control system failure, bad door lo…

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Why won't my washing machine start?

Main causes: bad lid switch or door lock, bad timer or electronic control board, wiring failure, bad water inlet valve a…

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Why won't my washing machine drain?

Main causes: clogged drain hose, house drain clogged, bad drain pump, water-level pressure switch failure, bad control b…

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Why is my washing machine noisy or shaking?

Main causes: unbalanced load, loose spanner nut, worn drive block, broken shock absorber or suspension spring, debris in…

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How to replace a wall oven hidden bake element

How to replace a wall oven hidden bake element

These step-by-step instructions guide you through replacing the hidden bake element.…

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Time required
 30 minutes or less

Effective articles & videos to help repair your washers

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

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How to use your washing machine efficiently

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