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La Marzocco B.1.004.K

La Marzocco B.1.004.K Steam Valve Rebuild Kit, GS3 | Fits GS3

Regular price $83.37

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 crucial steam performance of your La Marzocco GS3 espresso machine with the genuine Steam Valve Rebuild Kit, GS3 (Part \# B.1.004.K). This essential kit includes all necessary OEM seals, gaskets, O-rings, and internal components designed specifically to address common issues like a **leaking La Marzocco GS3 steam valve** or a stiff, inconsistent steam wand lever. Engineered to withstand high temperatures and pressures, these factory-specified components ensure a perfect, airtight seal, eliminating frustrating steam loss and restoring the precise control you need for superior milk texturing. If you are asking **how to fix a leaky GS3 steam wand**, this comprehensive rebuild kit provides the definitive, long-lasting solution, guaranteeing your machine operates at peak efficiency.

Key features of the B.1.004.K kit include durable, food-grade materials and precision-machined parts that fit the GS3 steam assembly perfectly, ensuring maximum longevity and reliable function. The benefit of using this genuine OEM rebuild kit is the restoration of your steam valve’s smooth, responsive action and reliable shut-off, preventing costly downtime and water damage. Regular replacement of these wear-and-tear parts is vital for proactive maintenance—don't wait until your **GS3 steam valve is sticking or dripping**. This kit is designed for professional use during routine preventative maintenance intervals, ensuring your GS3 continues to deliver high-quality steam performance shot after shot.

For usage, this kit is specifically compatible with the La Marzocco GS3 model's original steam valve assembly. The detailed specifications match the factory parts exactly, ensuring optimal high-pressure integrity. By choosing this genuine Steam Valve Rebuild Kit, GS3 (B.1.004.K), you eliminate the guesswork and poor performance associated with aftermarket alternatives. Invest in the authenticity and reliability that Kaldi.com provides to **prevent steam pressure loss on La Marzocco GS3** and maintain the legendary performance of your espresso machine.

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 #B.1.004.K fits La Marzocco machines, including the GS3 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 series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #B.1.004.K 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 steam valve rebuild kit, gs3 ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #B.1.004.K 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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