Description
Original KitchenAid mixer bowl lock base | C00631268
The bowl lock base is the round metal component at the bottom of the bowl pivot on a KitchenAid mixer.
It connects the bowl to the mixer body with screws and prevents it from moving while operating.
When the component is worn or damaged, the bowl wobbles, and the mixing action is impaired.
Is the bowl wobbling or not locking? It's time to replace
When the bowl lock base is worn, the signs are clear:
The bowl does not sit stable, it wobbles while mixing, and sometimes even rotates along with the additional mixing.
Because of this, the dough does not develop evenly, and increased load is created on the mixer motor.
⚠️ Do not continue to use a mixer with a worn base. Repeated load on the bowl axis may cause damage to the internal mechanism and compromise the integrity of the device.
Common causes of base wear:
✅ Intensive use over years with heavy doughs
✅ Frequent assembly and removal of the bowl without proper alignment
✅ Light rust caused by moisture in the kitchen
Why is it important to replace with an original KitchenAid base?
The original KitchenAid bowl lock base is made of thick stainless steel that resists corrosion.
Furthermore, its screws and grooves are manufactured with millimeter precision for the specific axis of the KSM90 and KSM150 models.
Because of this, it locks the bowl completely and prevents movement at all speed levels.
A non-genuine part, however, may not fit the axis precisely, which could create vibrations and damage the integrity of the device over time.
⚠️ Before ordering, check the exact compatibility with your model using the “Check Model Compatibility” button at the top of the page.
How to find the model number of your mixer
The model number can be found on a sticker on the bottom of the mixer base. The model number is essential for verifying part compatibility before ordering.
📋 Technical specifications
| attribute | Details |
|---|---|
| Manufacturer's SKU | C00631268 |
| brand | KitchenAid |
| Manufacturer description | Screw Cap Kit |
| Model compatibility | KSM90, KSM150 |
| material | stainless steel |
| התקנה | Self-tapping (Phillips screwdriver) |
✅ Compatible models
The part fits the following models. Make sure it matches the model number on the base sticker:
- KSM90
- KSM150
To check exact compatibility for your model, click the “Check Model Compatibility” button at the top of the page.
Installation instructions
⚠️ Unplug the mixer before replacing.
⚠️ Remove the bowl before starting work.
- Carefully turn the mixer over to expose the bottom of the shaft.
- Loosen the existing screws using a Phillips screwdriver.
- Remove the old base from the hinge.
- Place the new base on the spindle and align the grooves.
- Screw the screws back in until fully tightened, without overtightening.
- Return the mixer to its normal position, assemble the bowl, and check that it locks securely.
Estimated time: 10 minutes. Required tool: Phillips screwdriver.
💡 Tip from the experts
To extend the life of the base, always assemble and remove the bowl in a straight, aligned motion.
Rotating the bowl before aligning it with the axis causes unnecessary friction that wears out the stainless steel grooves over time.
Also, wipe the hinge area after each wash to prevent moisture buildup.
❓ Frequently Asked Questions
Why doesn't the KitchenAid mixer bowl stay locked?
The most common cause is wear of the bowl lock base.
This component is made of stainless steel, but intensive use over years wears away the grooves that hold the bowl in place.
When the grooves are worn, the bowl wobbles even when you try to lock it. Replacing the base usually solves the problem in minutes.
What is a bowl lock base on a KitchenAid mixer?
A bowl lock base is a round stainless steel disc that is attached to the bottom of the bowl spindle with screws.
It forms the connection point between the bowl and the mixer body.
When the bowl is assembled and rotated to lock, the grooves on the disc catch inside the bowl and hold it in place during operation.
Can a KitchenAid mixer whose bowl is wobbling be repaired?
In most cases, yes. The bowl wobble is caused by a worn base that can be easily replaced yourself.
The replacement does not require dismantling the mixer body, and only involves replacing the stainless steel disc at the bottom of the shaft.
It is worth first verifying that the bowl wobble is not caused by a deformation in the bowl itself.
How do you replace the bowl base in a KSM150 mixer?
First, unplug the mixer.
Then, turn it over and loosen the screws at the bottom of the hinge with a Phillips screwdriver.
Remove the old base, place the new one and align the slots. Tighten the screws back and check that the bowl locks. The whole process takes about ten minutes.
What is the difference between an original bowl lock base and an unapproved replacement?
The original base is made of stainless steel according to the manufacturer's specifications, including precisely machined grooves for the KSM90 and KSM150 spindle.
Due to this, the bowl locks completely and prevents movement at all mixing speeds.
An unapproved replacement may contain slight deviations in dimensions that lead to only partial locking and accelerated wear of the axle.
⏱️ Delivery times:
- Most localities: within 6 business days
- Golan Heights, Arava, Eilat and settlements beyond the Green Line: within 8 business days

















