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Mahlkonig 703758

Mahlkonig 703758 Ek 43 - Grind Adjustment Spindle Fine Thread For 11 Position

Regular price $29.24

This part ships directly from Mahlkonig and stock is not guaranteed. Lead time averaging 5 to 7 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

The Mahlkonig 703758 Grind Adjustment Spindle is a precision-engineered OEM replacement part specifically designed for the iconic EK43 and EKK43 series commercial grinders. Featuring a fine thread pitch, this spindle is the critical component required for the 11-position adjustment cap system. By maintaining the tightest tolerances in the grinding chamber, this spindle ensures that your burr alignment remains consistent, allowing baristas to toggle between ultra-fine espresso and coarse filter settings with repeatable accuracy.

Investing in this genuine Mahlkonig spare part offers the dual benefit of machine longevity and superior extraction quality. A worn or stripped spindle can lead to "grind drift," where vibration causes the setting to shift during high-volume service. The 703758 spindle eliminates this mechanical play, providing a stable foundation for your 98mm burrs. Whether you are performing a routine overhaul or repairing a seized adjustment mechanism, this spindle restores the smooth, tactile feedback the EK43 is famous for, ensuring your shop maintains its peak output without downtime.

Engineered for durability and ease of installation, this spindle is compatible with the Mahlkonig EK43, EK43 S, and EKK43 models utilizing the standard 11-click indexing assembly. Technical specifications include a high-grade steel construction and a specialized fine-thread pattern tailored for 11-position caps (as opposed to the 13-position or stepless variants). To ensure optimal performance, we recommend applying a food-grade lubricant to the threads during installation and verifying your shear plate (303864) condition to maintain the integrity of the entire drive shaft assembly.

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 #703758 fits Mahlkonig machines, including the EK43, EK43 S, EKK43 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 EK43, EK43 S, EKK43 series. However, many Mahlkonig components are interchangeable across different platforms. If you have successfully installed Part #703758 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 Mahlkonig including this ek 43 - grind adjustment spindle fine thread for 11 position adjuster plate also for ek43s ***replacing 300950*** ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #703758 is a 100% genuine OEM component sourced directly from the Mahlkonig factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.
Lead times for Mahlkonig parts typically range from 5 to 7 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.
All Mahlkonig parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.
All Mahlkonig parts come with a 30 day return policy. Please see our refund policy or chat for more details.
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