Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Speed Queen
Washer

Model # DA3780 Official Speed Queen washing machine

Here are the diagrams and repair parts for Official Speed Queen DA3780 washing machine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 435 parts  |
Hose Clamp 22294
Hose clamp

Part #22294

Replaced by #WP596669

?
Manufacturer substitution
This part replaces 22294. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Screw 52150
Screw

Part #52150

Replaced by #WP489464

?
Manufacturer substitution
This part replaces 52150. Substitute parts can look different from the original.
This item is not returnable
$6.60 | 
13% OFF Phone Price : $7.60
In Stock
Foot 20409
#22

Boot, chassis and drain tub diagram

Foot

Part #20409

Replaced by #22003428

?
Manufacturer substitution
This part replaces 20409. Substitute parts can look different from the original.
This item is not returnable
$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Speed Queen Screen Mixing Valve 24122
#15

Mixing valve assemblies diagram

Speed queen screen mixing valve

Part #24122

$10.71
In Stock
Brake Disk 24599
#17

Main bearing assembly diagram

Brake disk

Part #24599

$24.40
In Stock
Kenmore Screw 20267
#4

Power cord, wire and terminals diagram

Kenmore screw

Part #20267

This item is not returnable
$3.23
In Stock
Washer 20279
#14

Motor and fluid drive diagram

Washer

Part #20279

This item is not returnable
$3.23
In Stock
Kenmore Screw 20530
#6

Motor and fluid drive diagram

Kenmore screw

Part #20530

This item is not returnable
$2.16
In Stock
Speed Queen Plug 23041
#13B

Power cord, wire and terminals diagram

Speed queen plug

Part #23041

This item is not returnable
$3.49
In Stock
Screw 20260
#4

Agitator post and spin tub diagram

Screw

Part #20260

This item is not returnable
$3.51
In Stock

Most common symptoms to help you fix your washers

Choose a symptom to see related washer repairs.

View all

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…

Read more

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…

Read more

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…

Read more

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…

Read more

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…

Read more

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…

Read more

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…

Read more

Why does my washing machine overfill?

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

Read more

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…

Read more

Repair guides for front-engine lawn tractors

View all
How to replace a blade clutch cable on a riding lawn mower

How to replace a blade clutch cable on a riding lawn mower

If the blades don't spin on your riding mower when you shift the lever, the blade clutch cable could be broken. Here’s h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a ground drive belt on a riding lawn mower

How to replace a ground drive belt on a riding lawn mower

Replace the ground drive belt if it's broken or too worn to spin the transaxle pulley.…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a riding lawn mower blade drive belt

How to replace a riding lawn mower blade drive belt

Replace the blade drive belt if it's broken or won't spin the cutting blades because of wear.…

Read more
Repair difficulty
Time required
 45 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.

View all
How to use your washing machine efficiently

How to use your washing machine efficiently

Find tips for using your washing machine efficiently to save energy and help reduce utility bills.…

Read more
How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more

Parts & More