WP240309-2 240309-2 Worm Gear Assembly - for Whirlpool Kitchen-aid Mixer

Update March 2026: I’ve been using my KitchenAid Artisan mixer with this replacement gear for nearly a year now, and it is still working like a charm. Ease of Installation & Fit: My husband helped me install this, and we were both impressed with the perfect fit. It lined up exactly like the OEM part, making the installation straightforward and much easier than we expected for a mechanical repair. Durability & Sturdiness: I was relieved to see that this gear is made of metal rather than the traditional plastic. It feels incredibly sturdy, and after a year of handling heavy bread doughs, the durability has been proven. It hasn't slipped once. Noise Level: One of the best parts is the noise level. The mixer sounds just as smooth as it did on day one—no grinding or extra rattling, which tells me the gear is high-quality and well-balanced. Value for Money: This part is an amazing value. For a fraction of the cost of a new mixer (or a professional repair), we were able to upgrade the machine to be even better than it was originally. Verdict: 5 stars. It’s a cost-effective, high-quality fix that actually makes the machine more reliable!

Worked perfect for our kitchen Aid. We have the 5qt tilt head and the worm gear busted pretty early on. Valve for the cost was worth it for sure. Just make sure you buy the food safe grease and you’re set.

This replacement part for my kitchen stand mixer is the best purchase I have ever made. I have owned my mixer for about 10 years, and I had to repair it several times because the original plastic part kept failing. Finding this high-quality replacement part finally solved the issue. It fit perfectly, was simple to install, and allowed me to keep my mixer running like new. I am very satisfied and highly recommend it to anyone needing a reliable fix for their kitchen mixer.

Feb 12, 2026 - Sad to report that while whipping some mashed potatoes the plastic bearing that I was concerned about melted (See first photo) creating excess clearance between the motor shaft and the metal worm gear causing the metal gear to strip (See second photo). Unit was not lacking in the specified food grade white grease and no other bearings were sloppy. Will now clean out all the grease that now is full of metal shavings and inspect for collateral damage and then refurbish this mixer again. This gearset with its sloppy low grade plastic bushing is only good for occasional light use at low speed and light loads for short duration mixing. Running it to the full 10 minute high load capacity of the mixer will cause it to self destruct with potential for much more collateral damage than the plastic gear in the original gear tower with its Oilite Bronze Bearings. Bottom line a good idea carried out badly. Original review below for historical reference: Casting was better than the HSJAWA and did not requiring machining to make it fit. Bearings were unfortunately plastic and sloppy plus an additional shim had to be installed above the worm gear to maintain its alignment with the motor shaft and the pinion gears alignment with the driven gear on the planetary drive shaft. Without shimming the shaft slid up resulting in only partial engagement with the mating gears. With the added shim it worked well and passed initial testing making a 6 cup batch of whole red wheat bread dough for a 3 lb loaf without stripping. Noise level was a little higher than with the plastic gear which was not extremely noticeable until heavily loaded such as when making the maximum size batch of bread dough. If the bearings had actually matched the diameter of the shaft and the assembly properly shimmed to maintain proper gear alignment without the need for modification this would have been a 4 star review plus if in addition to that the bearings had been sintered/Oilite bronze instead of plastic this would have been a 5 star review.

I have a KitchenAid mixer (model number KSM105GBCMC). One day while making bread, my 2 year old dropped the measuring cup in trying to help. I’m so glad he didn’t get hurt, but my KitchenAid ran slower and then 3 minutes later stopped spinning. When turned on, you could hear the engine, but the mixers wouldn’t spin. I found out it was the worm gear. I had stripped it. After tons of research online, I took apart the KitchenAid and saw that I did strip it. I just simply took out the old piece, put on the new, put it back together and now it works again! Don’t waste $300! Fix your KitchenAid this way! YouTube has videos on how to replace it! Just YouTube KitchenAid (your model) and worm gear replacement. This piece was amazing, cheap and came so fast! Will be back when this happens again lol

I got this as a replacement for my broken worm gear. And the entire 4 gear piece came pre assembled with a metal replacement gear so the gear won't wear out again. It's nice and easy to install. Took 3 screws and my God. This works great. A bit of noise as it grinds up. But the grease helps with that

Replaced the stripped worm gear in my KitchenAid mixer with this one and it’s been working great so far. I like that it isn’t the traditional plastic gear that failed in mine, and it feels much more solid. It was also cheaper than another option I saw, which made the choice easy. Installation was straightforward and the mixer is back to running like it should. Only problem I could possibly think of with this is that I had to purchase the food grease separately. Other than that this is a solid upgrade/replacement.

Have repaired 2 Kitchenaid tilt mixers with these parts. These gears fit fine, work fine, and do not break the first time you use them. There is no noticable gear noise either. You do have to clean all the old grease out before installing these, and cover them heavily in fresh, food grade grease before sealing the mixer up. But so far so good.

Im Original ist dieses Schneckenrad eine Sollbruchstelle (nicht ohne Grund) und dadurch auch die größte Schwachstelle und das Verschleißteil Nummer 1. Aus diesem Grund haben wir in unserer Maschine, einen angepassten Motorschutzschalter montiert. Leider sind die Zahnflanken des Ersatzproduktes sichtbar nicht evolvent >gegossen<. Resultierend daraus funktioniert der Umbau mit dem alternativen Überlastschutz zwar, die Geräuschkulisse ist jedoch mit einem drehehnden Eimer Schrauben vergleichbar… Würde es dieses Produkt aus normgerechter passgenauer spanender Produktion (z.B. aus Messing) geben, hätte es viele Fans!