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
Universal/Multiflex (Frigidaire)
Dishwasher

Model # MDB121RFS0 Official Universal/Multiflex (Frigidaire) built-in dishwasher - 5995287728

Here are the diagrams and repair parts for Official Universal/Multiflex (Frigidaire) MDB121RFS0 built-in dishwasher - 5995287728, 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 133 parts  |
Control Arm 154250801
#24A

Motor & pump diagram

Control arm

Part #154250801

Replaced by #5304517203

?
Manufacturer substitution
This part replaces 154250801. Substitute parts can look different from the original.
BEST SELLER
$40.17 | 
13% OFF Phone Price : $46.17
In Stock
Dishwasher Pump O-ring, Rear 154246901
#59

Motor & pump diagram

Dishwasher pump o-ring, rear

Part #154246901

BEST SELLER
$38.87 | 
13% OFF Phone Price : $44.87
In Stock
Dishwasher Pump O-ring, Front 154247001
#59

Motor & pump diagram

Dishwasher pump o-ring, front

Part #154247001

BEST SELLER
$38.87 | 
13% OFF Phone Price : $44.87
In Stock
Dishwasher Wheel 154174501
#7

Racks diagram

Dishwasher wheel

Part #154174501

Replaced by #5304532229

?
Manufacturer substitution
This part replaces 154174501. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.88 | 
17% OFF Phone Price : $5.88
In Stock
Base 154252201
#63

Motor & pump diagram

Base

Part #154252201

Replaced by #5304506533

?
Manufacturer substitution
This part replaces 154252201. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$19.20 | 
9% OFF Phone Price : $21.20
In Stock
Dishwasher Filter 154252301
#64

Motor & pump diagram

Dishwasher filter

Part #154252301

Replaced by #5304506533

?
Manufacturer substitution
This part replaces 154252301. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$19.20 | 
9% OFF Phone Price : $21.20
In Stock
Spring 154226001
#1

Door diagram

Spring

Part #154226001

Replaced by #154430501

?
Manufacturer substitution
This part replaces 154226001. Substitute parts can look different from the original.
BEST SELLER
$29.59 | 
17% OFF Phone Price : $35.59
In Stock
Float Bracket 154209801
#28B

Tub diagram

Float bracket

Part #154209801

Replaced by #154773201

?
Manufacturer substitution
This part replaces 154209801. Substitute parts can look different from the original.
BEST SELLER
$41.07 | 
13% OFF Phone Price : $47.07
In Stock
Dishwasher Sump Gasket 154246801
#13

Motor & pump diagram

Dishwasher sump gasket

Part #154246801

BEST SELLER
$40.15 | 
13% OFF Phone Price : $46.15
In Stock
Water Tubing 154239801
#22

Tub diagram

Water tubing

Part #154239801

Replaced by #5304523457

?
Manufacturer substitution
This part replaces 154239801. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$13.39 | 
13% OFF Phone Price : $15.39
In Stock

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

View all

Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure…

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 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

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 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 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

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 heating element

How to replace a dishwasher heating element

Dishes not drying as fast as they should? The dishwasher heating element could be on the fritz. Here's how to install a …

Read more
Repair difficulty
Time required
 45 minutes or less
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 diverter motor

How to replace a dishwasher diverter motor

Upper spray arms not getting water? The diverter motor could be broken. Use this guide to replace it.…

Read more
Repair difficulty
Time required
 30 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