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Astoria 28003038

Astoria 28003038 Mechanism Knob C00071650

Regular price $4.53

This part ships directly from Astoria and stock is not guaranteed. Lead time averaging 3 to 5 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

Astoria M42 Stepless Mechanism Knob (Part Number C00071650, also referenced as 28003038) is a precision-engineered replacement component designed specifically for Astoria espresso machines. Crafted to exact OEM specifications, this knob plays a critical role in the stepless adjustment system, allowing baristas to fine-tune espresso extraction with unparalleled accuracy. Unlike stepped knobs that offer fixed increments, the stepless mechanism ensures smooth, continuous control over grind size or pressure settings, providing a customizable brewing experience tailored to your specific taste preferences.

Durability and ergonomic design are core features of the M42 knob. Made from high-quality materials, it withstands the rigors of daily commercial use in busy coffee shops, while its tactile surface ensures a comfortable, slip-resistant grip. This level of control empowers baristas and coffee enthusiasts alike to achieve consistent, precise dosing and optimal espresso shot quality. Whether calibrating grind for different coffee beans or adjusting pressure parameters, the M42 knob facilitates a seamless adjustment process that enhances workflow efficiency during peak hours.

Ideal for professional cafes, specialty coffee shops, or any environment utilizing Astoria espresso machines, the M42 Stepless Mechanism Knob is an essential maintenance and upgrade part. Installing this knob helps extend the lifespan of your espresso machine’s adjustment system, reducing downtime and repair costs. For coffee professionals committed to excellence, maintaining equipment with genuine OEM parts like the C00071650 ensures reliability and peak performance, ultimately contributing to superior espresso quality and customer satisfaction. Kaldi.com proudly offers this part as part of its commitment to supporting the coffee industry’s technical and operational needs.

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 #28003038 fits Astoria machines. 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.

Compatibility for this specific Astoria part is currently being indexed. Because many parts from this manufacturer are cross-compatible, we rely on technical feedback. If you know this is a match for a specific machine, please contact us to help us verify and add it to our list.

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 Astoria including this ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #28003038 is a 100% genuine OEM component sourced directly from the Astoria factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.
Lead times for Astoria parts typically range from 3 to 5 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.
All Astoria parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.
All Astoria parts come with a no returns, all sales final return policy. Please see our refund policy or chat for more details.

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