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Mazzer M28300/M Upper Dosing Star, Major, Robur | Fits Doser

Name: Mazzer M28300/M Upper Dosing Star, Major, Robur | Fits Doser
Brand: Mazzer
SKU: LM:M28300/M
Price: 26.39 USD
Availability: InStock

$26.39

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 consistent dosing accuracy to your Mazzer Major or Robur coffee grinder with the genuine Mazzer Upper Dosing Star (Part # M28300/M). This essential OEM component is engineered to fit a wide range of Mazzer doser models, including the Major, Robur, Super Jolly, and Kony, ensuring reliable operation across high-volume commercial settings. The primary feature of this dosing star is its precise, long scraping rod (approximately 87mm), which sweeps the doser chamber clean after each cycle. This mechanism is critical for achieving consistent, regulated doses, eliminating the frustration of inconsistent espresso shots caused by uneven coffee distribution. If you’re experiencing "Mazzer doser not sweeping properly" or "uneven espresso extraction," replacing the dosing star is the definitive solution to maintain peak performance.

The benefit of installing a new, authentic Mazzer Dosing Star is immediate and tangible, translating directly into improved workflow and better espresso quality. A properly functioning dosing star guarantees that the correct amount of ground coffee is deposited into your portafilter consistently, shot after shot. This consistency removes a major variable in espresso preparation, allowing baristas to focus on tamping and brewing. Manufactured for durability and long-lasting performance, this component is designed to withstand the rigorous demands of busy café environments, minimizing downtime associated with dosing failures.

The Mazzer Upper Dosing Star (M28300/M) is a crucial part for scheduled maintenance. It fits models such as the Major, Robur, Royal, and Super Jolly dosers. Its precise construction ensures seamless integration and reliable function. Don't let worn parts compromise your quality—upgrade to the OEM Mazzer Upper Dosing Star to prevent "Mazzer Robur coffee buildup" and ensure your grinder continues to deliver precision dosing for perfect espresso, every time.

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

Is this upper dosing star, major, robur compatible with my Mazzer machine?

This Part #M28300/M fits Mazzer machines, including the Doser 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.

Does this part fit any Mazzer model not listed above?

Our current database shows fitment for the Doser series. However, many Mazzer components are interchangeable across different platforms. If you have successfully installed Part #M28300/M 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.

Is this Mazzer part M28300/M in stock?

Parts from Mazzer including this upper dosing star, major, robur ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.

Is this a genuine Mazzer factory part?

Yes. Part #M28300/M 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.

What is the lead time for Mazzer parts?

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.

What is the warranty on Mazzer parts?

All Mazzer parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.

What is the return policy on Mazzer parts?

All Mazzer parts come with a All sales final return policy. Please see our refund policy or chat for more details.