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La Marzocco A.5.191

La Marzocco A.5.191 CAP G1/8 CH5 SOCKET S/S W/O-RING (for B.2.016 ball valve)

Regular price $12.65

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 integrity and safety of your espresso machine's critical water systems with the genuine **CAP G1/8 CH5 SOCKET S/S W/O-RING (for B.2.016 ball valve)**, Part \#A.5.191. This specialized stainless steel cap is engineered to securely seal pressure points, particularly on the B.2.016 ball valve assembly. Crafted from durable stainless steel (S/S), this G1/8 threaded cap ensures exceptional resistance to corrosion, high temperatures, and high pressure, guaranteeing a long-lasting, leak-free performance crucial for commercial and home **espresso machine maintenance**. Its key feature is the precision-machined G1/8 thread and CH5 socket head for easy installation and removal. Investing in this OEM part is the definitive **solution for leaking espresso machine caps** and compromised pressure seals.

The primary benefit of using this specific cap is the precise fit and material quality that prevents common failures associated with generic parts. If you are experiencing the **problem of a stainless steel cap not sealing** on your ball valve, the OEM A.5.191 cap provides the exact specifications needed for optimal functionality, even without an O-ring (though an O-ring is typically used with the corresponding valve body). Proper usage involves tightening this cap onto the B.2.016 ball valve body to protect internal components and maintain system pressure. This is a vital component for technicians looking to perform **preventative maintenance on G1/8 fittings**.

Specifications for the A.5.191 cap include the G1/8 thread size and a CH5 socket drive profile, making it compatible with standard tools for quick servicing. Ensure your steam or water lines remain fully pressurized and protected from internal contamination. If your existing cap is stripped, corroded, or missing, this replacement guarantees peak performance. Don't let a small failure cause a major **espresso machine pressure loss**: secure your system today with the genuine CAP G1/8 CH5 SOCKET S/S W/O-RING.

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.5.191 fits La Marzocco machines, including the Linea Mini R 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 Linea Mini R series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #A.5.191 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 cap g1/8 ch5 socket s/s w/o-ring (for b.2.016 ball valve) ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #A.5.191 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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