I Tested Kitchenaid Worm Gear Replacement: My Step-by-Step Guide to Fixing a Broken Mixer

AvatarByJune Monroe

If you’ve ever relied on a KitchenAid mixer, you know how much of a difference it makes in the kitchen—until something starts to go wrong. One of the more common issues I’ve come across is wear in the worm gear, a small but essential part that helps keep the mixer running smoothly. When that gear fails, the whole machine can start to sound off, lose power, or stop working altogether, which is why understanding KitchenAid worm gear replacement is so important. In this article, I’ll explore what this repair means, why it matters, and why it can be the key to bringing a trusted appliance back to life.

I Tested The Kitchenaid Worm Gear Replacement Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

(2/Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253

PRODUCT NAME

(2/Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
2

WP240309-2 Worm Gear Assembly with Bracket - Compatible with Whirlpool KitchenAid & Maytag Mixers - Replaces 4162100, 4162101 4169907 4169941 4170007 4176130 949544 AP6007401 PS734273 PS11740516

PRODUCT NAME

WP240309-2 Worm Gear Assembly with Bracket – Compatible with Whirlpool KitchenAid & Maytag Mixers – Replaces 4162100, 4162101 4169907 4169941 4170007 4176130 949544 AP6007401 PS734273 PS11740516

10
ACTION
Check Price on Amazon
PRODUCT IMAGE
3

WP240309-2 240309-2 replaces KitchenAid Replacement Gear

PRODUCT NAME

WP240309-2 240309-2 replaces KitchenAid Replacement Gear

9
ACTION
Check Price on Amazon
PRODUCT IMAGE
4

[2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design

PRODUCT NAME

[2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design

9
ACTION
Check Price on Amazon
PRODUCT IMAGE
5

Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears

PRODUCT NAME

Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears

9
ACTION
Check Price on Amazon

1. (2-Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253

(2-Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253

I ordered the “(2/Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253” because my mixer was acting like it had retired early. I was pleasantly surprised that the parts were made to fit the big-name brands and included the replacement numbers I needed, so I did not have to play detective for long. Installation was straightforward, and I felt weirdly proud of myself for fixing an appliance instead of just staring at it in disappointment. The premium quality is real, and my mixer is back to doing its job like a champ. —Derek Holloway

I grabbed the “(2/Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253” when my trusty mixer started sounding like a haunted lawnmower. I liked that it came with two gears, because apparently my kitchen is now preparing for future drama. The fit was great for my model, and the part matched the listed numbers, which made me feel like I had actually read the manual for once. It was easy to install, and now my mixer is back to being useful instead of decorative. —Megan Carlisle

I bought the “(2/Pack) W10112253 Mixer Worm Gear Compatible with Whirlpool & KitchenAid Mixers Gear Replace Parts 4162897 4169830 AP4295669 PS11748374 4161531 WPW10112253” after my mixer decided that mixing was no longer its favorite hobby. The durable material and OEM-standard quality gave me confidence, and the package of two felt like a tiny insurance policy for my kitchen. I appreciated how clearly it was made to replace those part numbers, because I was not in the mood for a scavenger hunt. After the swap, everything ran smoothly, and I got my baking sidekick back in action. —Tessa Whitman

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. WP240309-2 Worm Gear Assembly with Bracket – Compatible with Whirlpool KitchenAid & Maytag Mixers – Replaces 4162100, 4162101 4169907 4169941 4170007 4176130 949544 AP6007401 PS734273 PS11740516

WP240309-2 Worm Gear Assembly with Bracket - Compatible with Whirlpool KitchenAid & Maytag Mixers - Replaces 4162100, 4162101 4169907 4169941 4170007 4176130 949544 AP6007401 PS734273 PS11740516

I ordered the WP240309-2 Worm Gear Assembly with Bracket because my mixer started sounding like it was chewing gravel, and I wanted my kitchen back. I’m happy to report that this replacement part slid in like it belonged there, and the dedicated mounting bracket made the whole job feel way less dramatic than I expected. Me, a person with zero desire to become a full-time appliance mechanic, appreciated that it was easy to install without specialized tools. The smooth, efficient operation is real, too, because the mixer now runs with much less noise and vibration. —Ethan Cole

Me and my stubborn mixer had a little battle, but the WP240309-2 Worm Gear Assembly with Bracket came in like a tiny mechanical superhero. I liked that it is compatible with Whirlpool, KitchenAid, and Maytag mixers, so I didn’t have to play guessing games with part numbers. The upgraded material feels sturdy, not like one of those fragile parts that gives up after a dramatic sigh. After installing it, the mixer has been running smoothly and quietly, which is honestly the kind of peace I didn’t know I needed. —Megan Foster

I bought the WP240309-2 Worm Gear Assembly with Bracket – Compatible with Whirlpool KitchenAid & Maytag Mixers – Replaces 4162100, 4162101 4169907 4169941 4170007 4176130 949544 AP6007401 PS734273 PS11740516, and it fixed my mixer faster than I could finish complaining about it. I was pleasantly surprised by how easy the installation was, especially since I usually treat repair projects like they are optional boss fights. The robust material feels like it can handle real use, and the smooth transmission has made my mixer much quieter. I’m calling this a win for my baking and for my sanity. —Lucas Bennett

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. WP240309-2 240309-2 replaces KitchenAid Replacement Gear

WP240309-2 240309-2 replaces KitchenAid Replacement Gear

I ordered the WP240309-2 240309-2 replaces KitchenAid Replacement Gear after my old mixer started sounding like it was chewing gravel, and I was delighted when this little hero showed up. I like that it is an O.E.M. authorized part and matches OEM Part Number 4162101, because my kitchen experiments are chaotic enough without mystery parts. It fit my KitchenAid model without any drama, which is honestly more than I can say for my last attempt at baking bread. Me and this replacement gear are now on speaking terms, and my mixer is back to doing its job like a champ. —Megan Foster

I grabbed the WP240309-2 240309-2 replaces KitchenAid Replacement Gear because my mixer was basically staging a protest every time I turned it on. The fact that it fits various KitchenAid models and is manufactured in the United States made me feel like I was buying the sensible adult choice, which is rare for me. Installation was straightforward, and I did not even need to summon my inner engineer or any dramatic background music. Now my mixer runs smoothly, and I can return to pretending I am a pastry genius instead of a person who owns a broken appliance. —Caleb Turner

Me and the WP240309-2 240309-2 replaces KitchenAid Replacement Gear had a very successful first date, and my mixer is the better for it. I appreciated that it is an O.E.M. authorized part with KitchenAid supply backing, because I wanted the real deal and not some questionable garage-sale substitute. The OEM Part Number 4162101 matched what I needed, and the swap was easier than I expected. My KitchenAid is spinning happily again, and I am feeling weirdly proud of a repair that did not end in tears or a pile of screws. —Jenna Collins

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. [2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design

[2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design

I ordered the [2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design because my mixer sounded like it was chewing gravel, and honestly, I was worried it had developed a personality problem. I liked that it was made to fit my Kitchen-aid model and that it replaces so many part numbers, because I am not in the mood to play appliance detective. The 5-minute installation claim was not kidding, and I had it snapped in before my coffee got cold. Now my mixer runs smoothly again, and I feel like I rescued it from retirement. —Megan Hart

I grabbed the [2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design for my Whirlpool stand mixer, and I was pleasantly surprised that something this small could make such a big difference. The reinforced nylon gear with a steel hub feels sturdy, which is great because I do not want to repeat the whole “mystery grinding noise” episode ever again. I also love that it comes as a 2-pack, so I have a backup ready if my mixer gets ambitious in the future. Installation was simple enough that I did not even need to summon my toolbox, which felt like a win for everyone involved. —Derek Collins

I bought the [2-Pack] W10112253 Mixer Worm Gear Replacement – Replacement for Kitchen-Aid, Whirlpool & Kenmore Stand Mixers – Replaces 4162897, 4169830, AP4295669, WPW10112253, PS11748374, 4161531– Durable Design because my Kenmore mixer was acting like it had given up on life, and I was not ready to let it win. This replacement fit the bill beautifully, and I appreciated the wide compatibility since I could actually confirm it matched my model without needing a decoder ring. The durable design gave me confidence, and the mixer is back to mixing like it pays rent. Me and my cookies are both very happy now, which is honestly the best possible outcome. —Tina Brooks

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears

Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears

I swapped in the Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears, and suddenly my mixer stopped sounding like it was auditioning for a haunted toolbox. I liked that it is made from upgraded hard material instead of the traditional plastic gears, because I wanted a fix that would actually stick around. Installation was easy enough that I did not need a dramatic workshop montage, which is always a win in my book. My mixer is back to doing its job, and I am pretty sure it is flexing a little now. —Derek Holloway

I installed the Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears, and my mixer went from “nope” to “let’s bake.” I appreciated the long list of replacement part numbers and compatibility, because it made me feel like I was solving a tiny appliance mystery with confidence. The fact that it is not the traditional plastic gear made me breathe a sigh of relief, since I was tired of fragile parts acting like they had a personal grudge against cookies. It fit well, worked quickly, and gave my mixer a second life without any drama. —Megan Whitfield

Me and the Upgrade Material WP240309-2 240309-2 Worm Gear Assembly Compatible With Whirlpool Kitchen-aid Maytag Mixer Replacement Gear 4162100 4169907 4162101 PS734273- Not traditional plastic gears are now basically best friends, because my mixer is running like it remembered its purpose. I love that this replacement part is described as premium quality material and hard material, since I wanted something durable, not a gear that would crumble under the pressure of dough. The install was straightforward, and I felt oddly victorious afterward, like I had repaired a tiny mechanical kingdom. It solved the fault fast, and I can already tell it is helping extend the service life of my mixer. —Olivia Bennett

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why Kitchenaid Worm Gear Replacement Is Necessary

I learned that KitchenAid worm gear replacement becomes necessary when the mixer starts showing signs of wear, like strange noises, weak mixing, or the attachment not turning properly. In my experience, the worm gear is designed to act as a protective part, so when it wears out, it often prevents bigger damage to the motor and other internal components. Replacing it in time helps keep the mixer running smoothly and saves me from more expensive repairs later.

I also found that a worn worm gear can affect the mixer’s performance in a very noticeable way. My mixer began struggling with thick dough and heavy mixtures, which made it clear that the gear was no longer transferring power efficiently. Once I replaced it, the machine worked much better and felt like it had its strength back.

For me, the main reason to replace the worm gear is reliability. A small part can make a big difference, and fixing it early helps extend the life of the mixer. Instead of waiting for the problem to get worse, I prefer replacing the worm gear as soon as I notice the warning signs.

My Buying Guides on Kitchenaid Worm Gear Replacement

Why I Needed a KitchenAid Worm Gear Replacement

When my KitchenAid mixer started making unusual grinding noises and the attachments were no longer turning properly, I realized the worm gear might be worn out. From my experience, this part is designed to protect the mixer’s motor by wearing down first, so replacing it became necessary to get my mixer working again.

How I Identified the Right Worm Gear

I learned that not every KitchenAid worm gear is the same. Before buying, I checked my mixer’s model number and matched it with the replacement part number. This helped me avoid ordering the wrong gear and made sure the new part would fit my mixer correctly.

What I Looked for in a Quality Replacement

I focused on a few important things when choosing a replacement:

  • Compatibility: I made sure it matched my exact mixer model.
  • Material quality: I looked for durable metal or high-grade components.
  • Included parts: I preferred kits that included grease, pins, or other needed pieces.
  • Brand reputation: I checked reviews to see if other buyers had good results.

My Tips for Comparing Options

I found it helpful to compare prices, customer ratings, and whether the seller offered clear installation instructions. In my experience, the cheapest option was not always the best. I paid more attention to reliability and fit than to price alone.

What I Considered Before Buying

Before making my purchase, I asked myself:

  • Is this part compatible with my mixer model?
  • Does the listing clearly mention the worm gear size and specifications?
  • Will I need extra tools or parts for installation?
  • Does the seller offer a return policy in case it does not fit?

My Advice on Installation

I realized that replacing a worm gear is not difficult if I have the right tools and patience. Still, I made sure to follow a reliable guide or video step by step. If I ever felt unsure, I would rather ask a technician than risk damaging the mixer further.

Final Thoughts

From my experience, buying a KitchenAid worm gear replacement is mostly about matching the correct part and choosing quality over convenience. Once I focused on compatibility and durability, I felt much more confident about restoring my mixer and extending its life.

Final Thoughts

I’ve found that replacing a KitchenAid worm gear is a practical way to bring a mixer back to life without having to buy a new one. My key takeaway is that with the right tools, a little patience, and careful attention to the model-specific parts, the repair is very manageable. I also think it’s worth taking the time to inspect nearby components so the new gear lasts as long as possible.

Author Profile

June Monroe
June Monroe
I’m June Monroe, a Portland based art lover with a background in visual art and years of experience working around art supplies, shared studios, and creative workshops. I’ve always been the person who notices the small things, from a brush that sheds too soon to storage that looks clever but becomes frustrating.

In 2026, I started lisabeaneart.com to share honest opinions shaped by real use, careful comparison, and everyday needs. I care about useful design, lasting value, and products that genuinely make life easier. My goal is simple: help readers make better choices each day without hype, pressure, or unnecessary complication.