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See part 12 in the diagram
Replacing your KitchenAid Mixer Worm Gear play video
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Worm Gear

★★★★★
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34 Reviews

Rated by 27 customers 

Easy 

30 - 60 mins 

Ratings submitted by customers like you who bought this part.

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

 Fits your 3KSM150PSTWH0!
 Fits your 3KSM150PSTWH0!
PartSelect Number PS11748374
Manufacturer Part Number WPW10112253
Manufactured by Whirlpool
Product Description

Worm Gear Specifications

This worm gear is an inch and a half in diameter. It is used for some of Whirlpool's brands of 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# WPW10112253 replaces these:
AP6015102, 4161531, 4162897, 4169830, W10112253, WPW10112253VP
Questions and Answers

Ask our experts a question about this part and we'll get back to you as soon as possible!

5 questions answered by our experts.
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Bill Johnson
February 20, 2018
How do i get the plastic worm gear out of the housing its assembled in on my KitchenAid mixer?
For model number K45SSWH
Hi Bill, Thank you for your question. There is a video listed with the worm gear on our website that you may reference for information. I hope this helps. Thank you and have a great day!

7 people found this helpful.

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Robert
September 2, 2019
I am replacing the worm gear in my kitchen aid mixer. The grease is full of shredded nylon so I think I need to replace the grease. Is there any particular weight or composition grease I should use. Any grease that I should avoid using?
For model number K5SSDWH
Hello Robert, Thank you for the question. You will need to use the mixer grease, PartSelect Number PS12583821. Hope this helps!

3 people found this helpful.

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Related Parts:
James (Akiva)
February 6, 2020
I need to replace worm gear. Do you ship to israel? If not i can have it shipped to a relative in us and have them ship to me; i'd rather you ship if you can.Yours jim baker
For model number 5K5SS
Hello James, thank you for your question. The worm gear is PartSelect Number PS11740516 for this unit. Unfortunately, we are only able to ship within the US. I hope this helps.

1 person found this helpful.

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Al.Greco
April 3, 2019
My mixer runs ok but under a load.It starts to vibrate &jump.Up&down is this a worm gear problem?
For model number KSM90Ww
Hello Al, thank you for your question. Yes, it is most likely an issue with one or more of the gears. We would recommend removing the planetary and inspecting the gears for wear and tear. I hope this helps!

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Sandy
July 10, 2019
Our worm gear has on it 241803. Is this the same as wpw10112253
Hello Sandy, thank you for contacting us, In order for us to locate the correct parts and repair information we will require the model number of the unit. Once you have located the model number please feel free to resubmit the question and we will be happy to help you. Look forward to hearing from you!

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Part Videos

Replacing your KitchenAid Mixer Worm Gear

Replacing your KitchenAid Mixer Worm Gear play video
Customer Repair Stories
 Average Repair Rating: 3.1 / 5.0, 27 reviews. What's this?
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Sorry, we couldn't find any existing installation instruction that matched.
motor would run but mixer wouldn't operate: broken worm gear
My girlfriends' stand mixer failed when the accessory drive cap fell into the mixing bowl and jambed the beater, spliting the worm gear. The teeth on this gear are made of nylon and are molded to an aluminum center. This part is designed to fail in situations like this, saving the more expensive transmission parts. Following a repair manual I found online, I first removed the rear cover and pulled out the cord strain relief out from the base. Next I removed the drip cup from around the base of the planetary drive. I then used a pin punch to drive out the pin holding the planetary to the center shaft and removed the planetary. The unit was then inverted and I removed 4 screws holding the bottom cover to the gear case, and the 5 screws from around the planetary drive. The bottom cover was then lifted off. Three screws holding the worm gear bracket in place were then removed and the worm gear assembly lifted out. A small pin holds the worm gear to the shaft. I drove this out with a small pin punch and the shaft and worm gear were then removed. There is also a thrust washer on this shaft, and it's location is important. Make a note for re-assembly. The new gear was installed and the entire process reversed for re-assembly. A successful repair completed! My girlfriend would have replaced this $200 appliance, but I was able to repair it for less than $30 including shipping.
  • Raymond from Shirley, MA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
79 of 82 people found this instruction helpful.
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The worm gear (plastic-made to be the weakest spot), three teeth were worn,
I removed the lower unit along with the top unit, removed the gear, replaced the gear, then put back together. I removed the grease, saved most of it, then discarded what looked like the dirty grease. I cleaned inside thoroughly in case broken parts were inside. The three schematics were very helpful in re-installed. Mixer was 40 years old but works like new!
Other Parts Used:
End Seal LINK-SPEED
  • Robert E. from Loveland, CO
  • Difficulty Level:
    Difficult
  • Total Repair Time:
    More than 2 hours
  • Tools:
    Nutdriver, Pliers, Screw drivers
16 of 20 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 and Bracket
  • 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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Moter would run, but nothing would turn
first removed the dress ring by tapping it very gently.then drive the pin out that holds the beater plate on, now wiggle it off, then you can see the screws that hold the gear reducer on. remove them. take that off and you will see the housing that hold the worm gear. remove the 3 screws that hold it down . Now you will have to drive the drift pin out that holds the worm gear in place, slide the shaft out then remove gear. reverse order to assemble
  • Curtis from Green River, WY
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
8 of 9 people found this instruction helpful.
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Stripped gear when I tried to make Pizza Dough
Very messy as there is lots of heavy grease inside the mixer and you have to fish out the blown gear parts. I vary glad I took shop class in High school as it preped me for the job. The machanical drawing you provide were very useful but you should mention the grease.

Mixer works just like new. and I got the parts in two days with standard shipping. Pizza on Thursday and fixed by Saturday
  • Patrick from Cupertino, CA
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
7 of 8 people found this instruction helpful.
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Worm gear was missing teeth
Took the mixer apart and cleaned the grease so off I could see the pins. Wasn't a hard fix only thing is make sure to clean the grease off so you can see what your doing
  • Terry from Pigeon, MI
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Pliers, Screw drivers
6 of 7 people found this instruction helpful.
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Worm gear broken
I called my fiancée.
  • Jennife from Lancaster, PA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers, Wrench (Adjustable)
6 of 10 people found this instruction helpful.
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mixer would not turn
removed the screws holding the mixer housing and then removed the worn worm gear by removing the roll pin holding it on the shaft. Replaced the worm gear and inserted the pin that hole it in place. Replaced some of the gear grease and reassembled mixer. Went very easily. No problems at all.
Other Parts Used:
Retaining Pin
  • James from Wewahitchka, FL
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
5 of 8 people found this instruction helpful.
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planetary gear would not turn; discovered worm gear was broken upon dis-assembly of mixer
Followed step-by-step video instructions for dis-assembly/reassembly found at ereplacementparts.com. All went well except when driving out the pin that holds the worm gear in the tower. The video wasn't exactly clear enough about what position the pin should be in when driving it out and I inadvertently drove the pin out so that it was trapped inside the tower assembly. Result? I had to bend the pin to get it out, causing an extra expenditure and wait time to order a new pin. So, lesson learned: be sure the pin is horizontal to the tower and not perpendicular to when driving the pin out. Also, I found that having the mixer apart was a good time to replace the grease in the housing. I don't think it would be required to replace the grease at this time but I was worried that pieces of the old worm gear could remain in the grease and possible get jammed in the gears after repairs were completed. Be sure to get a "food grade" grease not grease from your local auto parts store! The table knife was the best tool to use to remove the grease and to smear the grease all over the internal gears when replacing it.
Other Parts Used:
Retaining Pin
  • David from GREENWOOD, IN
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
3 of 3 people found this instruction helpful.
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The worm gear was broken
I removed the pin from the outside shaft,then removed all screw around the body of the mixer,then removed the top case out,took 3 screws out from the the gear assembly case......punched the pin out of worm gear then release the little shaft out from the case,replaced a new one....then starting go backward till completely all assembled don't forget lube grease to all gears and test run good very smooth.........it's ok
  • DONG from Elk Grove, CA
  • Difficulty Level:
    A Bit Difficult
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Pliers, Screw drivers
3 of 4 people found this instruction helpful.
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Customer Reviews
Average Rating:
★★★★★
★★★★★
34 Reviews
4.6
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Model Cross Reference
This part works with the following models:
PartSelect Number: PS11748374
Manufacturer Part Number: WPW10112253
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
41515475
Grill - Lp Gas Grill
KitchenAid
4K45SS
Mixer
KitchenAid
4K45SS7OB0
Mixer
KitchenAid
4K45SS7WH0
Mixer

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