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La Marzocco A.5.177

La Marzocco A.5.177 Fitting, Group Valve, G1/8F - G1/8M Treated (Was L100/C)

Regular price $14.43

This part ships directly from La Marzocco 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 critical hydraulic connection in your commercial espresso machine with the genuine Fitting, Group Valve, G1/8F - G1/8M Treated (Part # A.5.177, replacing the older L100/C). This essential OEM component is specifically designed to provide a secure, leak-proof interface between the group valve and connecting tubes within the brew group assembly. Crafted from durable brass and featuring a specialized treated finish, it resists corrosion and wear from high-temperature, high-pressure water, ensuring longevity and reliable performance. Key specifications include G1/8 female to G1/8 male threading, standard sizing for numerous espresso machine models, and a robust construction necessary for the demanding environment of a commercial café. Maintaining this connection is vital for preventing pressure drops and ensuring consistent extraction quality.

**Problem/Solution:** Are you experiencing a persistent **espresso machine group head leak** or irregular flow due to a worn-out connector? The A.5.177 Group Valve Fitting is your direct solution. Its precision threading and treated surface guarantee an optimal seal, directly resolving issues caused by faulty or corroded fittings. The benefit is clear: reliable water path integrity translates to consistent brew pressure and eliminates machine downtime caused by leaks. Proper usage involves applying appropriate thread sealant and ensuring installation is performed by a qualified technician to avoid overtightening, which can cause irreparable damage to delicate hydraulic systems. This small part delivers immense value by protecting major components and maintaining shot consistency.

Investing in this authentic OEM treated fitting ensures the best possible long-term operation for your machine. It’s an essential preventative maintenance item that is often overlooked. Replacing your **worn espresso machine fitting** with the A.5.177 helps safeguard the performance of your entire group valve assembly. For baristas and technicians looking to maintain factory-spec performance and eliminate the common **problem of water leaking from the group valve**, this specialized, durable fitting provides the confidence needed to keep your machine running flawlessly, serving perfect espresso shot after perfect espresso shot.

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 #A.5.177 fits La Marzocco machines, including the KB90, Strada X 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 KB90, Strada X series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #A.5.177 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 La Marzocco including this fitting, group valve, g1/8f - g1/8m treated (was l100/c) ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #A.5.177 is a 100% genuine OEM component sourced directly from the La Marzocco factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.
Lead times for La Marzocco 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 La Marzocco parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.
All La Marzocco parts come with a 30 day return policy. Please see our refund policy or chat for more details.

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