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La Marzocco H.1.009

La Marzocco H.1.009 O-Ring Group Valve, 1.78 x 15.60, Viton | Fits GS3 & More

Regular price $2.51

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 of your espresso machine's group valve with the high-performance O-Ring Group Valve, 1.78 x 15.60, Viton (Part # H.1.009). This critical sealing component is engineered to prevent leaks and ensure optimal pressure consistency within your brew group. Featuring genuine Viton material, this O-ring offers superior resistance to extreme heat, aggressive chemicals, and steam exposure, outperforming standard rubber materials in demanding commercial settings. If you are experiencing common issues like a "leaking espresso machine group valve" or "loss of brew pressure after maintenance," this OEM-specified O-ring is the essential solution for reliable sealing and preventing costly water damage to internal components.

The O-Ring Group Valve (H.1.009) boasts precise specifications for a flawless fit, measuring exactly 1.78mm in cross-section and 15.60mm in inner diameter. Viton construction is the key feature here, providing longevity and minimizing the need for frequent replacements, which is a major benefit for high-volume cafés looking to "reduce espresso machine downtime." Installation is quick and straightforward, targeting the critical valve point in the group head assembly. Regular inspection and replacement of this O-ring are vital preventative maintenance steps; waiting until you see "water dripping from the espresso group head" often means internal components are already compromised.

Ensure peak performance and eliminate inconsistent extractions caused by pressure loss. This Viton O-ring is essential for maintaining the tight seals required for commercial-grade espresso making. If you need a "high-temperature group valve seal replacement" that lasts, the O-Ring Group Valve H.1.009 is the perfect match. Buy this OEM-quality Viton seal today at Kaldi.com and guarantee your machine delivers consistent, quality shots by solving the "problem of a faulty espresso machine valve seal."

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 #H.1.009 fits La Marzocco machines, including the GS3, KB90, Mistral, Strada AV, Strada EE, Strada EP, Strada MP, 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 GS3, KB90, Mistral, Strada AV, Strada EE, Strada EP, Strada MP, Strada X series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #H.1.009 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 o-ring group valve, 1.78 x 15.60, viton ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #H.1.009 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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