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

Rancilio 40501

Oring Seal 3.68x1.78 (00040501)

Regular price $0.50

This part ships directly from Rancilio and stock is not guaranteed. Lead time averaging 1 to 3 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

The Rancilio Oring Seal 3.68x1.78 (Part Number 00040501) is a critical, precision-engineered component for maintaining the flawless operation of your Rancilio espresso machine. Featuring the industry-standard metric dimensions of 3.68mm inner diameter and a 1.78mm cross-section, this small but essential O-ring provides a reliable, tight seal in various high-pressure and high-temperature points within your equipment. Sourced from Italy, this authentic seal ensures the exact fit and material integrity required for professional espresso machine performance.

Regular replacement of this Oring Seal is essential for preventing leaks, maintaining consistent internal pressure, and ensuring the continued integrity of your Rancilio's fluid systems. A new 00040501 seal guarantees optimal machine function by effectively stopping water and steam loss, which can lead to costly downtime or inconsistent shot quality. For any serious coffee enthusiast or busy commercial cafe, utilizing this high-quality replacement is a simple way to extend the lifespan and reliability of your espresso equipment.

This versatile Oring Seal is utilized in multiple internal fluid lines and fittings across various Rancilio models, typically found where a 3.68mm x 1.78mm seal is required on Teflon pressure hoses or other small connections. Due to its vital function in the machine's pressure system, always use a genuine OEM-quality component to ensure chemical and thermal resistance. Secure your authentic Rancilio 00040501 Oring Seal today from Kaldi.com to restore your espresso machine to its peak operating condition.

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 #40501 fits Rancilio machines. 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.

Compatibility for this specific Rancilio part is currently being indexed. Because many parts from this manufacturer are cross-compatible, we rely on technical feedback. If you know this is a match for a specific machine, please contact us to help us verify and add it to our list.

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 Rancilio including this ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.
Yes. Part #40501 is a 100% genuine OEM component sourced directly from the Rancilio factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.
Lead times for Rancilio parts typically range from 1 to 3 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.
All Rancilio parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.

Commercial Coffee Machine Part Manufacturers