Add a 5 lb bag of custom roasted coffee to your parts order and get an extra 25% off our wholesale coffee prices!

La Marzocco ROND_GROWER4 Zinc Coated Grower Washer, M4 | Fits KB90

Name: La Marzocco ROND_GROWER4 Zinc Coated Grower Washer, M4 | Fits KB90
Brand: La Marzocco
SKU: LM:ROND_GROWER4
Price: 0.60 USD
Availability: InStock

$0.60

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

Ensure the reliability and structural integrity of your espresso machine components with the genuine Zinc Coated Grower Washer, M4 (Part # ROND_GROWER4) from Kaldi.com. This essential M4 split lock washer is engineered to prevent bolts and nuts from loosening due to vibration or thermal expansion—a common issue in high-temperature espresso environments. Key features include a durable zinc coating for superior corrosion resistance and a precision M4 sizing (4mm internal diameter) for a perfect fit in small-scale fastening applications. Invest in this OEM-quality solution designed for longevity and performance. **Problem/Solution:** Are you experiencing **loose screws on your espresso machine after use**? The constant vibration from the pump and thermal cycles can compromise standard fasteners. The Zinc Coated Grower Washer, M4 provides the critical spring tension needed to maintain maximum joint tightness, solving the frustrating problem of **fasteners backing out on commercial espresso equipment**. Its split ring design acts as a locking mechanism, ensuring a secure grip and minimizing maintenance downtime. Use this washer in conjunction with M4 bolts wherever a tight, vibration-proof seal is required, particularly within the chassis or internal bracing of La Marzocco equipment. This component is an indispensable part of your preventative maintenance routine. Restore consistent operation and reduce the need for frequent retightening with the ROND_GROWER4. This part is critical for technicians and commercial café operators looking to maintain high-volume espresso machine performance. Purchase the Zinc Coated Grower Washer, M4 today to guarantee a firm, long-lasting connection and eliminate **vibration-related loosening issues** in your Coffee Maker & Espresso Machine Replacement Parts inventory.

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

Is this zinc coated grower washer, m4 compatible with my La Marzocco machine?

This Part #ROND_GROWER4 fits La Marzocco machines, including the KB90 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.

Does this part fit any La Marzocco model not listed above?

Our current database shows fitment for the KB90 series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #ROND_GROWER4 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.

Is this La Marzocco part ROND_GROWER4 in stock?

Parts from La Marzocco including this zinc coated grower washer, m4 ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.

Is this a genuine La Marzocco factory part?

Yes. Part #ROND_GROWER4 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.

What is the lead time for La Marzocco parts?

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.

What is the warranty on La Marzocco parts?

All La Marzocco parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.

What is the return policy on La Marzocco parts?

All La Marzocco parts come with a 30 day return policy. Please see our refund policy or chat for more details.