Description Details
Restore the core function of your grinder with the genuine Vulcano Key Stock 4 x 4 x 14 (Part # M.1.074). This small but vital OEM component is specifically engineered to securely fasten the grinding burrs or motor shaft within the La Marzocco Vulcano and other compatible grinders. Precision-cut to exacting 4mm x 4mm x 14mm specifications, this key stock guarantees zero slippage between coupled components, ensuring the motor's power is efficiently and consistently transferred for uniform grinding. If you've noticed that your "espresso grinder motor spins but burrs don't move," a worn or sheared key stock is the likely culprit. Installing this authentic replacement part is the definitive "solution for a loose grinder burr shaft" and is essential for maintaining the high-performance consistency required in high-volume commercial settings.
**Problem/Solution Focus:** A common cause of poor grind quality and inconsistent extraction is mechanical wear inside the grinder. When the original key stock fails—often due to high torque or age—the grinding mechanism loses its crucial alignment and connection to the motor, resulting in inconsistent particle size and frustrating downtime. Replacing the component with the M.1.074 key stock solves the critical issue of "how to fix a commercial coffee grinder that won't grind" by restoring the necessary mechanical link. Its robust construction ensures long-term durability and reliable torque transmission, directly benefiting your workflow by eliminating costly service calls and extending the lifespan of your machine’s motor and burr assembly.
The Vulcano Key Stock 4 x 4 x 14 is a necessary maintenance item for any commercial establishment experiencing grinder malfunctions. Compatible with La Marzocco Vulcano grinders, this part weighs 680.388555 grams (shipping weight) and is an inexpensive fix for a major operational flaw. Purchase the genuine M.1.074 key stock today to ensure your grinder delivers the flawless performance and consistent extraction quality your customers expect.
Frequently Asked Questions
Our current database shows fitment for the Vulcano Automatic, Vulcano OD, Vulcano Swift series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #M.1.074 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.
Compatible Parts Diagrams*
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