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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Maytag
Dishwasher

Model # MDB7749SBW3 Official Maytag undercounter dishwasher

Here are the diagrams and repair parts for Official Maytag MDB7749SBW3 undercounter dishwasher, 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.

Installation guide
Owner’s manual
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 43 parts  |
Danby Appliance Touch-up Paint, 0.6-oz (white) (replaces 21020, 72017r, 8006, W10813125, Y058028) 72017
#NI

Optional parts (not included) diagram

Danby appliance touch-up paint, 0.6-oz (white) (replaces 21020, 72017r, 8006, w10813125, y058028)

Part #72017

BEST SELLER
$8.29 | 
11% OFF Phone Price : $9.29
In Stock
Dishwasher Hose Clamp 370445
Dishwasher hose clamp

Part #370445

BEST SELLER
This item is not returnable
$6.49 | 
13% OFF Phone Price : $7.49
In Stock
Refrigerator Door Trim Screw (replaces 8281250) WP8281250
#8

Inner door parts diagram

Refrigerator door trim screw (replaces 8281250)

Part #WP8281250

$7.99 | 
11% OFF Phone Price : $8.99
In Stock
Dishwasher Holder W10199809
#10

Upper wash and rinse parts diagram

Dishwasher holder

Part #W10199809

$12.69 | 
14% OFF Phone Price : $14.69
In Stock
Dishwasher Thermostat Housing W10300703
#24

Tub and frame parts diagram

Dishwasher thermostat housing

Part #W10300703

$12.89 | 
13% OFF Phone Price : $14.89
In Stock
Dishwasher Pocket Handle W10343323
#6B

Door and panel parts diagram

Dishwasher pocket handle

Part #W10343323

$56.22
In Stock
Dishwasher Nut 8533949
#14

Pump and motor parts diagram

Dishwasher nut

Part #8533949

$32.89 | 
15% OFF Phone Price : $38.89
In Stock
Dishwasher Pocket Door Handle Guard W10343322
#6

Door and panel parts diagram

Dishwasher pocket door handle guard

Part #W10343322

$56.19 | 
10% OFF Phone Price : $62.19
In Stock
Dishwasher Thermostat Housing W10292870
#5

Tub and frame parts diagram

Dishwasher thermostat housing

Part #W10292870

This item is not returnable
$18.89 | 
10% OFF Phone Price : $20.89
In Stock
Dishwasher Cup Shelf W10289765
#5

Upper rack and track parts diagram

Dishwasher cup shelf

Part #W10289765

$38.79 | 
13% OFF Phone Price : $44.79
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

View all

Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…

Read more

Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…

Read more

Why is my dishwasher leaking?

Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…

Read more

Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…

Read more

Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge…

Read more

Why does my dishwasher stop mid-cycle?

Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, contro…

Read more

Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

Read more

Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …

Read more

Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…

Read more

Most common repair guides to help fix your dishwashers

These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

View all
How to replace a dishwasher high-limit thermostat

How to replace a dishwasher high-limit thermostat

Follow these steps to replace the high-limit thermostat in your dishwasher if prevents the heating element from heating.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher door outer panel

How to replace a dishwasher door outer panel

If your dishwasher door is dented or you want it to match your cabinets or other appliances, this guide shows how to rep…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a dishwasher thermal fuse

How to replace a dishwasher thermal fuse

A completely dead control panel often indicates that the thermal fuse on the electronic control board is blown; follow t…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dishwashers

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

View all
5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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