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See part 58 in the diagram
Replacing your KitchenAid Mixer Worm Gear and Bracket play video
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Worm Gear and Bracket

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17 Reviews

Get this part fast! Average delivery time for in-stock parts via standard shipping: 1.8 days.

PartSelect Number PS11740516
Manufacturer Part Number WP240309-2
Manufactured by Whirlpool
Product Description

Worm Gear and Bracket Specifications

Used for Kitchenaid Mixers.
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Troubleshooting
This part fixes the following symptoms:
Touchpad does not respond
This part works with the following products:
Mixer.
This part works with the following products:
KitchenAid, Whirlpool, Kenmore.
Part# WP240309-2 replaces these:
AP6007401, 240309-2, 4162100, 4162101, 4169907, 4169941, 4170007, 4176130
Questions and Answers

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11 questions answered by our experts.
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Georgia
March 31, 2018
What type of grease for gear box where worm gear is located?
For model number KSM150PSCL
Hello Georgia, Thank you for your inquiry. Part# WP4176597 is the grease, approximately one pound. It is the planetary gear grease recommended by the manufacturer for all KitchenAid mixers, it is approved for incidental food contact. Hope this helps!

6 people found this helpful.

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Kimberly
November 15, 2018
My husband took my mixer apart and the worm gear has 4 worn down broken gears.This part looks like it’s a nylon gear. the original one is metal, are they compatible?
For model number K5SSWH
Hello Kimberly, Thank you for the question. Checking the parts, the middle part of the gear is metal and the teeth are nylon. Hope this helps, good luck with this repair!

4 people found this helpful.

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Steve
December 25, 2017
Hi, our KitchenAid mixer is about 25 years old. It's a 115 volt machine, but we've used it overseas for 17 years, with transformers. So, it's probably received uneven current at times. The motor works but does not operate at slower speeds. When we move the speed control from the "off" position to "stir" or one of the lower speeds, it automatically moves to a fast speed, maybe 6 or 7 out of ten. At the higher end, between 6 and 10, the speed control can be used to regulate speed. Could you recommend what parts I should replace to fix this? Thank you, Steve
For model number K5SS
Hi Steve, Thank you for the question. I suggest replacing the Speed Control Plate,PartSelect Number: PS11748567/ Hope this helps!

4 people found this helpful.

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William
December 7, 2018
When the mixer is running it is very noise. Do i need to change the worm and pinion assembl
For model number ksm90wh
Hello William, thank you for your question. Yes, we would recommend replacing Part Number: PS11740516, as this is the most common part that can cause the noise in the unit. I hope this helps!

2 people found this helpful.

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Les
January 15, 2019
Our mixer makes an extremely loud squeaking noise when it's mixing anything. It makes the usual "gear" noises when it's running without any resistance against the blade, but as soon as the blade meets any resistance it begins making the squeaking noise. I took it apart tonight and inspected all the gears, but none of them looked like they're worn or damaged in any way, and there was more than enough grease to lubricate them. The mixer works fine. It never locks up or hesitates to mix.Do you have any idea what might be the problem? the noise is very annoying.
For model number KSM150PSWW
Hello Les, thank you for your question. Since the gears are not broken or worn, and are properly lubricated, we would recommend checking the planetary housing for any scratch marks from screws that have worked their way out a bit. Gently remove the blank collar around the planetary gear housing and check the five flat head straight screws — they may have loosened to varying degrees, and may be touching the planetary housing. If the screws are in tight and not worked out, you will want to check the center shaft and pin Part Number: PS354304 and the agitator shaft Part Number: PS11740538. I hope this helps!

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Kamil
December 13, 2019
Hi,I would like to buy some parts for my kitchen machine (KitchenAid 5KSM175). I live in the Czech Republic, please send? And how much money would cost mail to my country? Thank you in advance for your reply. Have a nice day. My name Kamil
For model number 5KSM175
Hi Kamil, Thank you for your question. We do not ship overseas. If you know someone in the US that we could ship the part to, then you could arrange with them to forward the part to you. We hope this helps. Thank you and have a great day!

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Ron
December 18, 2019
Noise with every revolution. What replacement part?
For model number KSM90WH
Hello Ron and thanks for writing. Yes. Worm gear and bracket PS11740516 should fix this symptom. We hope this helps. Please contact us anytime.

1 person found this helpful.

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Barbara
January 21, 2018
I wanted to order the worm gear assembly but want to make sure i order the correct part #. Serial # w60289728 thanks for your help.
For model number KSM150PSER
Hi Barbara, Thank you for your question. The worm gear and bracket assembly is listed under your model number and it is the correct part for your mixer. I hope this helps. Thank you and have a great day!

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Ron
December 18, 2019
Gears not stripped but clank on each revolution of hook. What part number, please?
For model number KSM90WH
Hello Ron and thanks for writing. You might need to replace the retainer ring PS11746909. We hope this helps. Please contact us anytime.

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Related Parts:
Grace
March 22, 2022
What is the worm gear and bracket and grease
For model number K45SSOB
Hi Grace, Thank you for your question. The grease is sold separately. The part number listed under your model number for the grease is PS12583821. If you need help placing an order for these parts, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!

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Related Parts:
Part Videos

Replacing your KitchenAid Mixer Worm Gear and Bracket

Replacing your KitchenAid Mixer Worm Gear and Bracket play video
Customer Repair Stories
 Average Repair Rating: 3.5 / 5.0, 23 reviews. What's this?
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Sorry, we couldn't find any existing installation instruction that matched.
Mixer was making clunking sounds and shaking
I removed screws in a sequence that I felt wouldn't further damage the mixer until I had it completely unassembled. When I found the broken worm gear, I went online to find a part. I found an exploded view, but the part numbering was old, and the salesperson couldn't tell me what the worm gear and bracket assembly consisted of, as I only wanted the worm gear. After trying to drive the pin out of the assembly, and failing, I decided to back online and see if anyone else had a photo of the assembly. Luckily (and wisely) PartSelect,com did and that answered any questions I had. The price was better, too. Reassembly of the mixer was a cinch with the exploded view. It's working like new, and we're hoping for another 35 years of service from it! Thanks.
Other Parts Used:
Motor Brush
  • Robert from Minden, NV
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Screw drivers
78 of 83 people found this instruction helpful.
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broken worm gear
just took the unit apart and replaced the worn gear and bracket . Then took the old worn gear and bracket apart and replaced the worn gear . Then put the assy back together and now I have a spare
Other Parts Used:
Worm Gear
  • robert from sun valley, CA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Pliers, Screw drivers
12 of 17 people found this instruction helpful.
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The mixer got a wad of dough between the pan & beater and stopped.
Once I looked at the schematic I was prtty sure what the problem was and what I needed to repair the problem. It was reltively easy to disassemble the mixer and immediately saw that I was correct in what was needed. I ordered the parts. They came through with no delay. It took almost as long to find all of the parts as it was to do the repair. In all it took about a half hour to repair, put it together and clean everything up. It works just like new.
Other Parts Used:
Transmission Case Gasket
  • Charles from Bowie, MD
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers, Wrench (Adjustable)
10 of 11 people found this instruction helpful.
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gear was stripped , head wouldn;t turn
We followed the you tube instructional video. It was excellent with good advice that kept us out of trouble. My mixer works like new again.
  • Joan from Nokomis, FL
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
9 of 10 people found this instruction helpful.
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broken gear
remove 6 screws for top of unit, remove gear assymble (23 screws), reassmbly and test it works great
  • angelo from palm coast, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
8 of 8 people found this instruction helpful.
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The Kitchenaid heavy duty mixer's motor would run but the mixer head would not turn.
Obviously the problem was in the gear box of the mixer. I disassembled the gear box by removing the four large screws holding the base then the four screws at the rear and center of the mixer. Then I removed the thin metal ring covering the five screws around the front of the housing by gently prying up with a small screwdriver. The five screws beneth the ring have to be removed with a small blade screwdriver turning them a round at a time in sequence until they are free. Gently pry the two housings apart with a screwdriver and lift our the lower half with the plantary gears. I found the drive gear was stripped. I went to PartSelect on the web, eaisly found the exploded view of the mixer's gear box and ordered the gear I needed. The gear is part of an assembly attached to the mixer housing with three screws. Work around the lubricant in the housing. Within four days I received the new gear, installed it by reversing the above procedures and the mixer is working again. The total cost was $34.85. Not a bad investment considering the mixer cost over $400 and would have been trashed for want of one part.
  • A. W. from Rogers, AR
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Pliers, Screw drivers
5 of 10 people found this instruction helpful.
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the gear wore out
I rip everything apart and put new and grease it. works like a new one.
Other Parts Used:
Transmission Case Gasket RING
  • Robert from Butler, PA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Screw drivers
5 of 12 people found this instruction helpful.
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plastic worm gear was stripped would nut turn
replaced worm gear and wonderd why they used plastic instead of a stronger metal gear, unit works fine
  • anthony from harviell, MO
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    1- 2 hours
  • Tools:
    Screw drivers
3 of 6 people found this instruction helpful.
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Broken worm gear
Removed old gear and grease and replaced gear and grease resembled
Other Parts Used:
GREASE Transmission Case Gasket
  • Edward from Edgewater Park, NJ
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Pliers, Screw drivers
3 of 3 people found this instruction helpful.
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Mixer stop rotating
Replace went good used the online video, my husband doesn't usually use any help but said the video helped him. Now my mixer works perfect. Also the price and shipping time was awesome.
Other Parts Used:
Flat Beater
  • Sherriel from TERREBONNE, OR
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
2 of 2 people found this instruction helpful.
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Customer Reviews
Average Rating:
★★★★★
★★★★★
17 Reviews
4.9
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Model Cross Reference
This part works with the following models:
PartSelect Number: PS11740516
Manufacturer Part Number: WP240309-2
Brand
Model Number
Description
KitchenAid
3K45SS
Mixer
KitchenAid
3K5SS
Mixer
Whirlpool
3KSM150PSTAQ0
Mixer
Whirlpool
3KSM150PSTBM0
Mixer - Stand Mixer
KitchenAid
3KSM150PSTBW0
Mixer - MIXER
KitchenAid
3KSM150PSTCB0
Mixer - MIXER
KitchenAid
3KSM150PSTCL0
Mixer - MIXER
KitchenAid
3KSM150PSTCU0
Mixer - MIXER
Whirlpool
3KSM150PSTDR0
Mixer
KitchenAid
3KSM150PSTER0
Mixer - MIXER
KitchenAid
3KSM150PSTGA0
Mixer - MIXER
Whirlpool
3KSM150PSTIC0
Whirlpool
3KSM150PSTLR0
Mixer
Whirlpool
3KSM150PSTMH0
Mixer - Stand Mixer
KitchenAid
3KSM150PSTMY0
Mixer - MIXER
KitchenAid
3KSM150PSTOB0
Mixer - MIXER
Whirlpool
3KSM150PSTPA0
Mixer - Stand Mixer
Whirlpool
3KSM150PSTPK0
KitchenAid
3KSM150PSTTG0
Mixer - MIXER
Whirlpool
3KSM150PSTVB0
Mixer - Stand Mixer
KitchenAid
3KSM150PSTWH0
Mixer - MIXER
Whirlpool
3KSM150PSTWM0
Mixer
KitchenAid
3KSM5CBTER0
Mixer - MIXER
KitchenAid
3KSM5CBTWH0
Mixer - MIXER
Whirlpool
3KSM95TCZ0
Mixer
Whirlpool
3KSM95TWH0
Kenmore
4154636928
Grill - Outdoor Grill
KitchenAid
4K45SS
Mixer
KitchenAid
4K45SS7OB0
Mixer
KitchenAid
4K45SS7WH0
Mixer

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