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4Ksmc50s Parts

Some parts shown may not be for your model. To see parts for your model only, select it from "Matching Model Numbers" list on the left.

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Stand Mixer Pinion Drive Gear
Genuine Whirlpool part
By: Whirlpool
Part Number: W11133645

Fix grinding noises and stripped gears in your stand mixer. This pinion drive gear transfers motor power through the gear train for smooth mixing.

Do-It-Yourself Stories from Customers like You Worm gear stripped   Stephen R. • Terre Haute , IN • August 10, 2015

REPLACED WORM GEAR AND OTHER GEARS SHOWING WEAR Read more

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Planetary Drip Ring (Mixer)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP240285

This planetary drip ring fits around a stand mixer's planetary assembly to cover the gap below the gearcase and help catch grease residue, restoring a clean, finished look where the beater hub meets the mixer head.

  • Mounts at the base of the mixer head around the planetary housing
  • Helps deflect incidental gearbox grease residue away from the bowl area
  • Covers the seam between housing and planetary for a clean, finished appearance
  • Replace if bent, cracked, loose, missing, or if you notice grease spotting beneath the planetary
What's included: One planetary drip ring. Install notes:
  • Unplug the mixer and remove the bowl and attachments
  • Gently pry off the old ring; clean the seating surface of debris or residue
  • Align and press the new ring evenly until fully seated; avoid deforming the ring or striking the gearcase
  • On some models, access may require lowering/removing the planetary
Note: This ring is a trim/deflector piece and not a fluid seal. Persistent oil leakage indicates separate gearcase service.

Do-It-Yourself Stories from Customers like You Worm gear failure on my KitchenAid 5 qt "professional" lift bowl mixer.   Edward B. • Mount Horeb , WI • January 24, 2020

This was a problem that I'd had previously with this mixer. The worm gear, which is designed to fail (so that more serious damage does not occur to the motor), did fail while I was mixing some multi-grain bread dough. After the previous failure (pre-youtube days), I took the machine in for repair. The repair-shop cost came to about $150 in labor. Parts were extra. This time, I decided to do the repair myself, since I figured that I knew what was wrong. I found the appliancepartspros... Read more

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Stand Mixer Machine Screw 10-24 Thread
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3400025

Machine screw with 10-24 thread fastens motor housing, gearcase, and internal brackets in stand mixers. Replace stripped or missing screws to restore secure assembly and reduce vibration.

Do-It-Yourself Stories from Customers like You Kitchenaid mixer did not rotate   Robert D. • Las Vegas , NV • November 08, 2018

Watched a you tube video that covered every detail. Identified the problem, showed how to take mixer apart, confirmed the problem, what parts to order and how to reassemble the mixer eliminating potential issues. Overall this DIY was an A plus. Read more

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Stand Mixer Brush Holder Cap
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3184212

Fix a mixer that won't start or runs intermittently with this brush holder cap. Secures the carbon brush and spring in the motor assembly.

Do-It-Yourself Stories from Customers like You Motor brush   Richard H. • Richton Park , IL • September 02, 2016

Your training film was a lot of help for me. Thanks!!! Read more

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Planetary
Genuine Whirlpool part
By: Whirlpool
Part Number: WP240286-1

Color: White

Do-It-Yourself Stories from Customers like You Planetary was damaged when one screw came lose and was shaved to bits   Tom A. • Allentown , PA • November 09, 2014

Removed the old planetary and cleaned metal shavings from gears. Transferred the old axle/gear assembly onto the new planetary. Inserted the new (and expensive) screw for the main gear and torqued it very tight (as well as the original other four screws). Slid the new planetary gears together and re-inserted the holding pin. Tapped on the cover ring and was done. Read more

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Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP9709196

The Grey Thumb Screw is an OEM Replacement Part designed for securing attachments on 4.5 and 5 Whirlpool and KitchenAid quart mixers. This screw plays a critical role in ensuring the stable and secure connection of various mixer attachments. With a user-friendly design, it offers easy installation without the need for additional tools. It can be installed by hand-screwing.

Do-It-Yourself Stories from Customers like You The plastic knob cracked   Kenneth F. • Ridge , NY • October 20, 2018

Replaced it with ordered part. Read more

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Stand Mixer 4.5 Quart Stainless Steel Mixing Bowl
Genuine Whirlpool part
By: Whirlpool
Part Number: W10802058

Replace your cracked, worn, or missing 4.5-quart stainless steel mixing bowl. Fits tilt-head stand mixers with handle for easy pouring and removal.

Do-It-Yourself Stories from Customers like You Plate on bottom of kitchen aid mixer was worn out wouldn't hold mixing bowl in place   Harry H. • Bridgeton , NJ • December 27, 2014

As soon as part arrived I removed 3 screws holding old plate, set new plate in, reinstalled screws and within 5 minutes repairs were done and wife was happy. Read more

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Flat Spring
Genuine Whirlpool part
By: Whirlpool
Part Number: WP240205

This flat spring restores proper tension and return action in the mechanism it supports. Replace a fatigued or broken spring to bring back crisp movement and keep linked parts aligned so the assembly operates smoothly.

  • Applies return tension to a lever, cam, or latch so it moves back to its rest position
  • Helps maintain alignment and engagement between mating parts during operation
  • Can resolve weak or missing spring action, sticking controls, and inconsistent operation
  • Replaces a worn, bent, or broken spring to restore designed feel
What's included: 1 flat spring. Install notes:
  • Disconnect power to the appliance before servicing; shut off water supply if applicable
  • Note the spring's orientation and mounting points before removal
  • Use needle-nose pliers for control; avoid overbending to prevent premature fatigue
  • Confirm smooth return action before reassembly

Do-It-Yourself Stories from Customers like You Kitchen aid mixer would not run   Gerald M. • Chandler , AZ • February 27, 2022

Replaced missing spring and lift part, adjusted brushes and re timed speed control with parts from AppliancePros. Read more

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Vertical Center Shaft (Ice Dispenser)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP240026

This vertical center shaft aligns and drives the rotating components in the refrigerator's ice dispenser/crusher assembly, helping cubes and crushed ice dispense smoothly. Replacing a worn or stripped shaft restores reliable dispensing performance.

  • Centers and supports the crusher/dispenser components for smooth operation
  • Transfers drive from the dispenser motor through the crushing mechanism
  • Helps prevent jams and binding caused by misalignment or wear
  • Common symptoms: ice not dispensing, no crush function, grinding/clicking noises, wobbling shaft or visible wear
What's included: One vertical center shaft Installation notes:
  • Unplug the refrigerator before servicing; handle sharp crusher blades with cut-resistant gloves
  • Remove the ice bin and disassemble the crusher housing on a flat work surface
  • Note the order of blades, spacers, washers, and any clips; transfer them to the new shaft in the same sequence
  • Reinstall the bin, ensure the drive coupling engages fully, restore power, and test dispensing

Do-It-Yourself Stories from Customers like You Stripped center gear   Shannon R. • Clay Center , KS • June 22, 2018

Replaced the center gear and since they sent the hub along I replaced that too just to be safe. Used the live chat before ordering to make sure I was ordering the correct part. The person I chatted with was very nice and very helpful and parts came in good shape, and just as ordered. Replaced the stripped gear the next day and added a bunch of grease and the mixer works like new. Was very impressed with their diagrams and helpful videos as well as their large selection of parts. The other... Read more

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Appliance Fastening Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: WP4159193

Fastening screw for securing components inside appliances. Replaces lost, stripped, or damaged screws during repairs or part installations.

Do-It-Yourself Stories from Customers like You Hinges were weak   Don M. • Colchester , VT • December 31, 2016

Bought and installed new hinges. Repair took about an hour but I also cleaned all the glass inside and out on both oven doors. I had ordered extra screws as I read the old ones that hold the hinges were hard to get in as they were self taping but the screw labeled 5 next to the hinge were not the right ones. All old screws worked fine. You just need to put a little power to them to get them started. Easy repair. Read more

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Stand Mixer Control Knob
Genuine Whirlpool part
By: Whirlpool
Part Number: WP9709280

Replaces a cracked, broken, or missing control knob on your stand mixer's speed or lock lever. Restores comfortable grip and clean appearance.

Do-It-Yourself Stories from Customers like You Worn worm gear   Ronald M. • Chino Hills , CA • September 07, 2015

As preventative maintenance, replaced worn worm gears and re-greased two units used in a bakery. All grease must be removed if contaminated and replaced. Also, the repair requires snap ring pliers to remove main shaft clip. Read more

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Spring
Genuine Whirlpool part
By: Whirlpool
Part Number: 4159622

This replacement spring restores proper tension and return action within the original mechanism of your appliance. Replacing a fatigued or broken spring helps moving parts operate smoothly and return to position for consistent, reliable performance.

  • Supplies controlled tension within the assembly
  • Returns levers or linkages to their neutral position after use
  • Helps maintain proper alignment and engagement of moving parts
  • Common signs of failure: weak/loose feel, parts not returning, intermittent operation, rattling or squeaking
What's included: Spring
  • Disconnect power before service; also shut off gas/water
  • Note original routing and attachment points; take a reference photo before removal
  • Use needle-nose pliers or a spring tool; avoid overstretching the new spring
  • Verify smooth manual movement before reassembly and testing

Do-It-Yourself Stories from Customers like You Part was missing.   Douglas B. • Searsport , ME • October 02, 2021

Replaced the part. Read more

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Stand Mixer Mounting Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: W10913677

Replacement mounting screw for stand mixer panels, brackets, and trim. Secures internal components to keep parts aligned. Replace if missing, stripped, or rusted.

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Stand Mixer Speed Control Board
Genuine Whirlpool part
By: Whirlpool
Part Number: W11666266

If your mixer won't start smoothly or speed settings aren't accurate, this speed control board regulates motor power. DIY-friendly replacement.

Do-It-Yourself Stories from Customers like You Speed control board wasn't working   Vanie T. • Naples , FL • December 09, 2025

Fixed with your replacement Read more

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Mixer Retaining Ring
Genuine Whirlpool part
By: Whirlpool
Part Number: WP9703307

Fix mixer parts that shift or make noise with this retaining ring. Snaps into groove to secure components on shaft. Takes under 20 minutes to install.

Do-It-Yourself Stories from Customers like You Lift arm had snapped   Peter M. • West Brattleboro , VT • December 14, 2018

I watched the video demonstration on the AppliancePartsPros.com website. It was easy to follow, and in less than 20 minutes my daughter's KitchenAide Mixer was as good as new. Read more

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Stand Mixer 5 Quart Stainless Steel Bowl With Handle
Genuine Whirlpool part
By: Whirlpool
Part Number: W11324096

Replacement 5-quart polished stainless steel mixing bowl with comfort handle for tilt-head stand mixers. Needed when original bowl is cracked or worn.

Do-It-Yourself Stories from Customers like You No attachments on it   William C. • Knoxville , TN • February 23, 2018

I ordered the attachments .all of them fit perfect. Read more

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  • boxes images Over 2.1 Million Parts In Stock
  • time delivery images 2 Day Quick Delivery!
  • box-refresh images 365 Day Return Policy!
  • headphone imagesFree Tech Support!
  • google images Google Trusted Store