Revive Your Beloved Mixer

The MacMaxe Stand Mixer Worm Gear & Pinion Kit is the ultimate solution to breathe new life into your stand mixer that has stopped spinning or is making grinding noises.
This replacement gear set includes both the main worm gear and the companion pinion gear, the critical components that transfer power from the mixer's motor to the mixing attachments.
If your mixer's motor runs but the beaters won't turn, chances are the worm gear has failed – this kit will restore your mixer's functionality and have you mixing dough and batter smoothly again in no time.​

Broad Compatibility for 4.5 & 5 Qt Models

Engineered to match OEM specifications, our repair kit is compatible with a wide range of mixers.
It fits the popular 4.5-quart and 5-quart tilt-head mixers – such as the Classic series, Ultra Power series, and Artisan series – which covers models like K45, KSM75, KSM90, KSM150, and more.
It also works with many 5-quart bowl-lift models (often referred to as Professional 5 or Heavy Duty mixers, e.g., K5SS) that use the same gear design.
This kit replaces part numbers 240309-2, 4162101, and 4162897, ensuring a precise fit and reliable performance.​

OEM-Quality Materials – Built for Durability

At MacMaxe, we understand that durability and safety are paramount.
That's why our worm gear is made from high-strength nylon, just like the original OEM part.
This material is purposefully chosen because it acts as a sacrificial fail-safe: if your mixer is overloaded, the gear will strip by design to prevent motor damage.
The included pinion gear is crafted from sturdy metal alloy, ensuring it can handle the motor's torque and provide long service life.
Each piece is precision-molded and machined for an exact fit, guaranteeing smooth, efficient operation once installed.​

Easy Installation & Cost-Effective Fix

Repairing your KitchenAid mixer with the MacMaxe gear kit is straightforward and rewarding.
The package includes clear installation instructions to guide you (and you can find how-to videos and tutorials readily available since this is a common fix).
With a few basic tools (screwdriver, mallet, snap-ring pliers), you can disassemble the mixer's gearbox, swap in the new worm gear and pinion, and re-grease the gears for optimal performance.
No special skills are required – if you're moderately handy, you can complete the repair in under an hour.​

Why Choose MacMaxe? – Quality & Support

MacMaxe is a brand dedicated to high-quality replacement parts for kitchen appliances.
We rigorously test our mixer repair components to ensure they meet or exceed original manufacturer standards.
When you choose the MacMaxe Worm Gear & Pinion Kit, you're getting a reliable product backed by a team that understands mixers and values customer satisfaction.