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Repair Parts Home  Appliance Parts  KitchenAid Parts  WP240309-2 Gears, Worm & Pinion Assembly

Gears,​ Worm & Pinion Assembly

Part Number: WP240309-2
KitchenAid
Availability: In stock [ need more? ]
Price: $27.37
Quantity:
Leaves our warehouse within
1 business day.

*This part replaces obsolete part #: 4169941, 4170007, 4176130, 4169907, 240309-2, 2403092, 4162100 and 4162101.

Product Information
Manufacturer: KitchenAid
Product Number: WP240309-2
Classification: Part
Weight: 0.42 lbs.
Shipping: Ships Worldwide
Description:
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.
Compatibility

This part is compatible with the following machines:

KitchenAid
KSM450BK0 Classic 4 1/2 Qt Stand Mixer
5K5SSWH 5-QT. Heavy Duty Stand Mixer
KSM150PSBU0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSPT0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSSF0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSTG0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSPL0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSBU0 Artisan Tilt Head 5 Qt. Stand Mixer
5KPM50BWH4 Professional 5 Qt. Stand Mixer UK
5KPM50BGR4 Professional 5 Qt. Stand Mixer UK
K45SSWH Classic 4 1/2 Qt. Stand Mixer
K45WSSWH0 Classic 4 1/2 Qt. Stand Mixer
K45SSAC0 Classic 4 1/2 Qt. Stand Mixer
K45SSAL0 Classic 4 1/2 Qt. Stand Mixer
K45SSDAC0 Classic 4 1/2 Qt. Stand Mixer
K45SSDAL0 Classic 4 1/2 Qt. Stand Mixer
KSM75WH1 Classic 4 1/2 Qt. Stand Mixer
KSM95WH0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95ER0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95GR0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95OB0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95BU0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95GA0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95PWH0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95SM0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM95TG0 Ultra Power 4 1/2 Qt. Stand Mixer
KSM100PSWW0 Ultra Power Plus 4 1/2 Qt. Stand Mixer
KSM100PSWH0 Ultra Power Plus 4 1/2 Qt. Stand Mixer
KSM100PSER0 Ultra Power Plus 4 1/2 Qt. Stand Mixer
KSM100PSOB0 Ultra Power Plus 4 1/2 Qt. Stand Mixer
KSM100PSMC0 Ultra Power Plus 4 1/2 Qt. Stand Mixer
KSM120WH0 Custom 4 1/2 Qt. Stand Mixer
KSM120ER0 Custom 4 1/2 Qt. Stand Mixer
KSM120OB0 Custom 4 1/2 Qt. Stand Mixer
KSM120MC0 Custom 4 1/2 Qt. Stand Mixer
KSM150PSOB1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMY1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGR1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGN1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSER1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBU1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSAC1 Artisan Tilt Head 5 Qt. Stand Mixer
KSM450ER0 Classic 4 1/2 Qt Stand Mixer
KSMC50 Commercial Mixer
KSM150PSWH0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCL0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGP0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGR0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBK0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSOB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGN0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSAC0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSIC0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSLV0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSER0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMY0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSLM0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSPK0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMG0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCV0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMC0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCH0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSVN0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSWB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSVT0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBW0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGC0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMA0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSML0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSOR0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSRB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSSU0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCY0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSMN0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGA0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCN0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSPN0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCO0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCT0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSWG0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBF0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSCPK0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBL0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSBY0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSFB0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSGG0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSSY0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSAQ0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM150PSPE0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSWH0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSGR0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSOB0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSGN0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSAC0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSLV0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSER0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSMY0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSPK0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSPT0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSTG0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSMC0 Artisan Tilt Head 5 Qt. Stand Mixer
4KSM150PSBW0 Artisan Tilt Head 5 Qt. Stand Mixer
KSM500SM0 Pro 500 5 Qt. Stand Mixer
KSM500OB0 Pro 500 5 Qt. Stand Mixer
KSM500WH0 Pro 500 5 Qt. Stand Mixer
KSM500PSWH0 Pro 500 5 Qt. Stand Mixer
KSM500PSER0 Pro 500 5 Qt. Stand Mixer
KSM500PSOB0 Pro 500 5 Qt. Stand Mixer
KSM500PSSM0 Pro 500 5 Qt. Stand Mixer
KP50P Mixer
KPM5 Mixer
KSM50P Mixer
KSMC50S Mixer
KPM50 Mixer
KSM155GB (Series 0) 5 QT. Glass Bowl Stand Mixer
KSM160PS (Series 0) 5 QT. Stand Mixer
K4SSWH0 4 1/2 QT. Stand Mixer
KSM90 (Series) Mixer
KSM103 (Series) Mixer
4K5SSWH1 5 Quart Classic Stand Mixer
KSM110 (Series) Mixer
KSM90PS Stand Mixer
KSM152 5-Quart Stand Mixer
KSM152GB (Series 0) 5-QT. Tilt-Head Stand Mixer
4K45SS (Series) 4.5 Qt. Stand Mixer
KSM158GBCA 5 QT. STAND MIXER
K5SS Stand Mixer
KSM150PSSM0 5 Qt. Stand Mixer Artisan Tilt Head
KSM5 Stand Mixer
KSM150PS Artisan Tilt Head 5 QT. STAND MIXER
KSM500ER0 Pro 500 5 Qt. Stand Mixer

Products Compatibility

This item works with the following types of products:

  • • Mixer
Questions & Answers

How do I access your tube videos as mentioned in the question/answer section? Grease and oil are mentioned in some of the scenarios... if I'm repairing my Gears, Worm and Pinion would I need to add some lubricant at some point? Thank you in advance for any assistance you can provide. Happy New Year to you. Sincerely - Darlene West
Darlene West for model number K45SS
Hi Darlene and thank you for your inquiry. All of our videos are on youtube and you can find them by typing what you're looking for exactly in the search area and type ereplacement.com. Add the grease after you have installed the parts and before. Hope this helps.
Repair Instructions: Submitted by Customers Like You
12 of 13 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Seal, End - WP240775-1
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Plastic gear wore out
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
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Thanks for voting and helping fellow customers!
6 of 6 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, rubber mallet
Stripped gear
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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5 of 5 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Easy
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Adjustable Wrench, Hammer, butter knife, 5/32 & 3/32 punches, toothpicks
Planetary would not rotate but motor would run
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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5 of 6 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, small hammer
The pinion in the "worm&pinion" assembly needed replacing
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!
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2 of 2 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Small punch and hammer
Mixer was making a growling noise when under a load
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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2 of 2 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Hammer and puncher
Worm gear is worn out
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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1 of 1 people found this instruction helpful
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, punch
The teeth on the plastic gear were damaged when a large spoon jammed the mixer head.
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

Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Control Plate - WPW10119326
Brush And Spring (2 Required To Make A Set) - WPW10380496
Repair Difficulty:
Medium
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Adjustable Wrench
Flooded Mixer
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
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Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Grease, Planetary - W11200218
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver
Mixer ran but would not spin
Proceeded as per video. Can't go wrong if you follow instructions.
https://www.youtube.com/watch?v=VeCiivPt7hk
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Mixer
Parts Used:
Gears, Worm & Pinion Assembly - WP240309-2
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Punch
Worm gear broke
I watched the ereplacement parts YouTube video which was super helpful. Many thanks for the great instructions! https://www.youtube.com/watch?v=VeCiivPt7hk
Did you find this story helpful?
Thanks for voting and helping fellow customers!
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  • Easy to fix thanks to the instruction video on YouTube
    The part fixed the problem
    iGlobal - April 18, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: KitchenAid
    Product Number: WP240309-2
    Classification: Part
    Weight: 0.42 lbs.
    Shipping: Ships Worldwide
    eReplacementParts.com
    7036 South High Tech Dr.
    Midvale, UT 84047
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