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Mazzer M28255

Mazzer M28255 4 X 4 X 14 Key | Fits Kony E 1, Kony S & Robur S

Regular price $8.05

This part ships directly from Mazzer and stock is not guaranteed. Lead time averaging 7 to 9 business days for ground shipments, 1 to 2 business days for Overnight.

If unavailable, the item will be backordered. If you have any questions check parts sheets below description. Please email or chat to confirm availability prior to ordering.

Description Details

Restore the dependable performance of your Mazzer grinder with the genuine Mazzer 4 X 4 X 14 Key (Part # M28255). This small but vital OEM component is engineered to maintain the precise connection between the motor shaft and the drive mechanism, preventing slippage that can lead to inconsistent grinding or complete machine failure. If you are experiencing problems where your "Mazzer grinder won't turn" or the "grinder burrs stopped spinning," a damaged or sheared key is often the core issue. Manufactured to exact specifications (4mm x 4mm x 14mm) from high-grade steel, this key is essential for transmitting maximum torque from the motor to the grinding burrs, ensuring your grinder operates with factory-level precision and speed.

Proper installation of the Mazzer 4 X 4 X 14 Key is critical for consistent, high-volume operation. As a keyway component, it fits securely into the slot on the motor shaft, enabling seamless mechanical linkage. The primary benefit of using this genuine OEM replacement from Kaldi.com is the guaranteed compatibility and material integrity, which drastically reduces the likelihood of future drive failures. For preventative maintenance or when your "Mazzer motor runs but burrs don't move," replacing this inexpensive part can be a quick and cost-effective fix, maximizing machine uptime and eliminating workflow disruptions in a commercial environment.

Don't let a minor component compromise your espresso quality. Ensure maximum operational efficiency and consistent grind quality by choosing the official Mazzer M28255 key. By utilizing this part, you address the common "how to fix Mazzer motor slippage" problem directly. Its compact size belies its importance, serving as the necessary mechanical link for all Mazzer grinders requiring a 4x4x14mm key. Invest in this authentic replacement today to ensure years of reliable, precise grinding performance and protect the longevity of your valuable commercial espresso equipment.

Descriptions are for reference only. We do our best to fill in the blanks when manufacturers don’t provide descriptions, but details can vary. We strongly recommend checking with the manufacturer for the exact part number you need. Ordering based on the part number—rather than the description—is the best way to ensure compatibility.

Frequently Asked Questions

This Part #M28255 fits Mazzer machines, including the Kony E 1, Kony S series. Compatibility may be specific to the machine's production year and model. Please consult the technical PDFs and compatibility data on this page to confirm a match for your specific unit before finalizing your purchase.

Our current database shows fitment for the Kony E 1, Kony S series. However, many Mazzer components are interchangeable across different platforms. If you have successfully installed Part #M28255 on a model we haven't listed, please let us know so we can update our records for the community.

If you are unsure of the fit, do not guess. To prevent downtime, please view our Compatible Parts Diagrams to check the exploded view PDF for your specific unit, or message our parts team for assistance.

Parts from Mazzer including this 4 x 4 x 14 key ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #M28255 is a 100% genuine OEM component sourced directly from the Mazzer factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.
Lead times for Mazzer parts typically range from 7 to 9 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.
All Mazzer parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.
All Mazzer parts come with a All sales final return policy. Please see our refund policy or chat for more details.

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