The Grower Washer D.5 (Part #1104104) is a high-quality BFC component engineered to maintain the peak performance of your espresso machine. This essential locking washer provides critical tension to internal fasteners, preventing loosening caused by machine vibrations and thermal expansion. By ensuring all internal connections remains secure, it helps maintain stable pressure and temperature profiles, which are vital for consistent espresso extraction and long-term mechanical reliability.

This is a genuine BFC component compatible with the following machine models:

• Classica
• Classica Eva
• Lira S

Installation of the 1104104 Grower Washer should be performed during routine maintenance or when internal components are being serviced. To ensure maximum safety, always verify that the espresso machine is fully turned off, depressurized, and cooled to room temperature before beginning any work. Replacing worn or flattened washers with this authentic OEM part ensures your equipment operates to factory standards. For professional-grade results and guaranteed part compatibility, shop at Kaldi.com for all your genuine BFC replacement parts and espresso maintenance needs.