KitchenAid
Stand Mixer

Model #KSM8990CU1 Official KitchenAid stand mixer

Here are the diagrams and repair parts for KitchenAid KSM8990CU1 stand mixer, as well as links to manuals and error code tables, if available.

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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.

Showing 10 of 67 parts

Stand Mixer Retainer Ring#22

Case, gearing and planetary unit parts Diagram

Retaining ring

Part #9703680
Replaced by #WP9703680
?
Manufacturer substitution
This part replaces 9703680. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.09 | 
16% OFF 
Phone Price: $6.09
Stand Mixer Speed Control Board and Knob (Silver), 120-volt (replaces W10487697)#12

Case, gearing and planetary unit parts Diagram

Speed control

Part #W10487697
Replaced by #WPW10487697
?
Manufacturer substitution
This part replaces W10487697. Substitute parts can look different from the original.
In Stock
$96.20 | 
9% OFF 
Phone Price: $106.20
Stand Mixer Motor Assembly (replaces W10517938)#10

Case, gearing and planetary unit parts Diagram

Motor

Part #W10517938
Replaced by #WPW10517938
?
Manufacturer substitution
This part replaces W10517938. Substitute parts can look different from the original.
In Stock
$156.59 | 
6% OFF 
Phone Price: $166.59
SCREW#8

Case, gearing and planetary unit parts Diagram

Screw

Part #3400617
This item is not returnable
In Stock
$5.09 | 
16% OFF 
Phone Price: $6.09
Stand Mixer Bowl Lift Rod Spring#12

Base and pedestal unit parts Diagram

Spring

Part #9237
Replaced by #4159622
?
Manufacturer substitution
This part replaces 9237. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.09 | 
16% OFF 
Phone Price: $6.09
Clip#5

Base and pedestal unit parts Diagram

Clip

Part #W10504114
Replaced by #WPW10504114
?
Manufacturer substitution
This part replaces W10504114. Substitute parts can look different from the original.
This item is not returnable
In Stock
$3.79
Screw#6

Base and pedestal unit parts Diagram

Screw

Part #3400018
Replaced by #W10861883
?
Manufacturer substitution
This part replaces 3400018. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.09 | 
16% OFF 
Phone Price: $6.09
Base#7A

Color variation parts Diagram

Base

Part #9705348
In Stock
$47.04
Housing#1

Color variation parts Diagram

Housing

Part #W10327951
In Stock
$46.73
Column#6B

Color variation parts Diagram

Column

Part #9708763
In Stock
$57.98

Symptoms common to all stand mixers

Choose a symptom to see related stand mixer repairs.

Main cause: attachment clearance setting needs adjustment
Main causes: lack of electrical power, wiring failure, worn carbon motor brushes, bad drive motor, tripped overload switch, control problems
Main causes: bad lubricating grease, mixer sitting idle for weeks at a time, mixer running constantly for more than 30 minutes
Main causes: phase control board failure, wiring connection problem, faulty electronic control board
Main causes: bad wiring connections, faulty speed control plate, electronic control board failure
Main cause: worn carbon motor brushes
Main causes: bad worm gear, damaged planetary gear assembly

Repair guides common to all stand mixers

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

How to replace a stand mixer worm gear

Here’s how to replace the worm gear in your stand mixer if it’s worn or damaged.

Repair difficulty
Time required
 30 minutes or less
How to replace a stand mixer phase control board

The phase control board works with the governor and control plate to control motor speed. Replace the phase control board if defective.

Repair difficulty
Time required
 30 minutes or less
How to replace stand mixer motor brushes

If the carbon brushes are worn and damaged, replace them using these steps.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all stand mixers

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

August 30, 2022

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

August 18, 2021

Using a wiring schematic to trace a current video

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Find out what’s wrong with your appliance by following a circuit.

September 1, 2015

Stand mixer common questions

By

These common questions and answers can help you make the most of your stand mixer.