Medium
30-60 minutes
This is an authentic KitchenAid replacement part, sold individually.
The Gears, Worm & Pinion Assembly is the main drive gear system for the mixer. They can either wear slowly over time so that metal gears do not wear, or they can completely fail when the mixer is overloaded, as a safety mechanism.
This part is compatible with the mixer models listed below.
A screwdriver is needed for repair.
Worm Gear WP240309-2
OEM part for: KitchenAid, Whirlpool
Part Number: WP240309-2
$35.17
In Stock
Order within the next 2 hours and your part ships today! 
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Product Description ?
- Classification: Part
- Weight: 0.42 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Worm Gear will fit the following 473 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
KitchenAid
Whirlpool
Show More Compatible ModelsThis item works with the following types of products:
- Mixer Parts
This part replaces obsolete part #: , 4169941, 4170007, 4176130, 4169907, 240309-2, 2403092, 4162100, 4162101
Customer Part Reviews ?
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Worm Gear
I have the model # KSM90WH. I no longer can use my dough hook, it stops and makes a grinding sound. Would that be the gear assembly?
Mardee
for model number KSM90WH
asked on 2022-11-11
Hello Mardee, Thank you for the question. We suggest checking the Gears, Hub and Pinion for wear or damage. Thank you for your inquiry, good luck with this repair!
eReplacementParts Team November 11, 2022
my worm gear is stripped out, i just need the plastic gear, do you know what gear I need? 5 qt artisan tilt mixer.
jim
for model number ksm150pslr
asked on 2023-10-27
Hi Jim,
Thank you for your question. The part number for the worm gear is WPW10112253. We hope this helps!
eReplacementParts Team October 27, 2023
I stripped the main drive gear of my wife's mixer with too much dough:). Do you have a replacement?
Paul
for model number KG25H7XER
asked on 2023-03-19
Hello Paul, Thank you for your inquiry. For the model number that you have provided, the drive assembly is available as separate parts. The worm follower gear is part# W11086780, which is the main part of the mechanism that drives the gears, and the hub gear, part# W11192795, meshes with this gear. We hope this helps you.
eReplacementParts Team March 19, 2023
I've lost the lowest/slowest gear on my mixer. What part or parts are needed for repair? Thank you
Barbara
for model number K.45-SS
asked on 2022-10-27
Hello Barbara, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number: W11133645. Thank you for your inquiry, good luck with this repair!
eReplacementParts Team October 27, 2022
Hi. Do you have the gear for the household mixer?
JULIAN
for model number KSM150PSBX
asked on 2022-04-19
Hi Julian,
Thank you for your question. The part number listed under your model number for the worm gear is WPW10112253. If you need help placing an order for it, 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!
eReplacementParts Team April 19, 2022
My specific model number is not listed in the compatibility list, but other similar model numbers are listed (one that is different only in the last two letters (KSM150PSSU0 is listed). Would you expect the worm & pinion assembly to be compatible with my model?
Dave
for model number KSM150PSWW
asked on 2022-04-07
Hello Dave, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number: WP240309-2. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team April 07, 2022
I need some gears for this mixer. Do you have gears and if so can you send me the gear part #'s
Lee
for model number KP26M1XOB serial # W44114606
asked on 2022-02-24
Hello Lee, thank you for your question. We have researched the model you have provided, and we would suggest the Gear? Hub, part number W11192795, the Brass Worm Follower Gear, part number W11086780, the Gear? Internal, part number W11181966, the Worm Gear, part number WP9709231, and the Gear, part number W11133646. If you need help placing an order, our customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team February 24, 2022
Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Plastic gear wore out
Mark - March 29, 2016
👍 13 of 14 people found this instruction helpful
Tool Type
Mixer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
I watched your you tube video on the KitchenAid Mixers. And it made this go quick and easy.
https://www.youtube.com/watch?v=VeCiivPt7hk
https://www.youtube.com/watch?v=VeCiivPt7hk
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Stripped gear
Norman - April 20, 2016
👍 6 of 6 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, rubber mallet
Parts Used
I found your you tube video on, How to fix a KitchenAid mixer that isn't spinning. I know it saved me hours of trying to repair it myself. Thank you.
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Planetary would not rotate but motor would run
Patricia - April 12, 2016
👍 5 of 5 people found this instruction helpful
Tool Type
Mixer
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Adjustable Wrench, Hammer, butter knife, 5/32 & 3/32 punches, toothpicks
Parts Used
Watch the excellent video ereplacementparts.com has produced, and follow their instructions. I replaced the entire unit rather than messing around with the single gear - it's a lot easier, and it's only a dollar or two more. About half the repair time was spent just trying to remove the pin that holds the planetary. I had to pound it out using the punches and my heavy claw hammer. After that, it's pretty simple. I have the 1980's era K5SS lift bowl stand mixer, which requires removing the head from the stand in order to remove the back two screws that hold the two parts of the head together. I had to use an adjustable wrench to loosen the four large screws holding the head to the stand. I had to pry the head apart due to the old grease acting like glue. The grease in my unit was so old and dried out, it was the consistency of a Kraft Caramel, so I had take it apart and scrape grease off all the remaining gears using a butter knife and toothpicks. This would have gone faster if I had invested in Carb Cleaner as suggested in the video comments. Putting it back together and greasing it up is pretty straightforward, as shown in the video.
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The pinion in the "worm&pinion" assembly needed replacing
Raymond - December 5, 2015
👍 5 of 6 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, small hammer
Parts Used
I first watched your video on replacement procedures and ordered the "worm&pinion" assembly. Then I watched it one more time before starting. I put the video up on my iPhone and played short sections and completed that section before proceeding to the next section.
I had one hangup, that the wires could not be pulled out of the main casting but a previous repairman had already cut the wire and joined the ends, so I simply repeated what he had done.
I should have cleaned out and replaced the grease but I had failed to buy it
My 50 yr old KitchenAid is ready for another 50 yrs of service.
The video is excellent!
I had one hangup, that the wires could not be pulled out of the main casting but a previous repairman had already cut the wire and joined the ends, so I simply repeated what he had done.
I should have cleaned out and replaced the grease but I had failed to buy it
My 50 yr old KitchenAid is ready for another 50 yrs of service.
The video is excellent!
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Mixer was making a growling noise when under a load
Gary - June 29, 2016
👍 2 of 2 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Small punch and hammer
Parts Used
Your video provided on the website explained in detail how to change the pinion gear assembly. I have fairly extensive mechanical experience as a home owner so it was very easy to complete the repair.
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Worm gear is worn out
Hernan - April 17, 2016
👍 2 of 2 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Hammer and puncher
Parts Used
I watched the video from you tube by ereplacement. And followed it, and the job was easy with the instructional video.
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Worm gear broke
Emma - March 22, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Punch
Parts Used
I watched the ereplacement parts YouTube video which was super helpful. Many thanks for the great instructions! https://www.youtube.com/watch?v=VeCiivPt7hk
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The teeth on the plastic gear were damaged when a large spoon jammed the mixer head.
scott - December 6, 2015
👍 1 of 1 people found this instruction helpful
Tool Type
Mixer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, punch
Parts Used
Your video was the key. After watching several people doing the repair the job was fairly simple. I copied the link to the video.
http://www.ereplacementparts.com/article/5297/How_to_Fix_a_KitchenAid_Mixer_That_Isnt_Spinning.html
http://www.ereplacementparts.com/article/5297/How_to_Fix_a_KitchenAid_Mixer_That_Isnt_Spinning.html
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Flooded Mixer
Richard - June 29, 2018
Tool Type
Mixer
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Adjustable Wrench
Most people would not try and repair this old mixer, but it was the first gift I gave my wife for our new home. We flooded in Harvey, and the mixer sat under 4 foot of water for 10 days. I cleaned it, dried it and it ran, but I could tell it needed attention. I put all new electrical parts inside and it runs, but I need to set the speed and switch positions. Balancing the settings is the hardest part of the rebuild.
thanks,
Craig
thanks,
Craig
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Mixer ran but would not spin
Britt - May 12, 2018
Tool Type
Mixer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver
Parts Used
Proceeded as per video. Can't go wrong if you follow instructions.
https://www.youtube.com/watch?v=VeCiivPt7hk
https://www.youtube.com/watch?v=VeCiivPt7hk
Did you find this story helpful?
Thanks for voting and helping fellow customers!
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
