Keeping a few essential espresso machine spare parts on hand can help you prevent leaks, avoid service delays, and keep your bar running when small parts wear out. The most useful parts to stock are group gaskets, group screens, portafilter baskets, steam wand parts, valve rebuild kits, grinder burrs, water filters, fittings, washers, clips, and model-specific rebuild kits.
Some parts, like group gaskets and screens, are routine maintenance items. Others, like valves, fittings, switches, and capacitors, are better to keep available so you are not waiting on a small part during a busy service week. Use this list as a starting point, then confirm compatibility with your specific espresso machine before ordering. Our customer service team is also happy to help you figure out what you need!
COMMON ESPRESSO MACHINE ISSUES AND PARTS TO CHECK
| If you notice this | Check this part first | Why it matters |
|---|---|---|
| Portafilter leaks during extraction | Group gasket | The gasket seals the portafilter to the group |
| Uneven water flow from the group | Group screen\shower screen | Group screens help distribute water across the coffee bed |
| Grounds in espresso shot or damaged basket shape | Portafilter basket | Worn or dented baskets can affect filtering and extraction |
| Weak steam or steam leaks | Steam wand o-rings, tips, nuts, or springs | Small steam wand parts wear down with regular use |
| Stiff valve movement or small leaks | Steam or water valve | Rebuild kits can help replace worn valve components |
| Espresso is hard to dial in | Grinder burrs | Worn burrs can affect grind consistency |
| Scale buildup or water-related damage | Water filter | Water quality affects machine performance and longevity |
| Small leaks around connections | BSP fittings, washers, or clips | Thread type and fit matter when replacing fittings |
WHO SHOULD USE THIS SPARE PARTS LIST?
This list is most useful for cafes, coffee shop owners, service techs, and home baristas who want to reduce downtime and stay ahead of routine espresso machine maintenance. A busy cafe may need to keep more replacement parts on hand than a home setup, but the basic categories are similar: group parts, steam parts, filtration, grinder parts, and small fittings that wear down over time.
WHAT SPARE PARTS SHOULD YOU KEEP FOR AN ESPRESSO MACHINE?
The most important espresso machine spare parts to keep on hand are group gaskets, group screens, portafilter baskets, steam wand o-rings and tips, valve rebuild kits, fittings, washers, clips, and water filters. Cafes should also keep grinder burrs and hoppers available, since grinder performance directly affects espresso quality.
Before ordering replacement equipment parts, confirm your machine brand, model, group type, thread size, and part dimensions. Many parts look similar but are not interchangeable across machines.
GROUP HEAD PARTS
Group Gaskets
Group gaskets seal the space between the portafilter and group head. If the portafilter feels loose or leaks during extraction, the gasket is usually the first place to check. Many cafes replace group gaskets quarterly, but timing depends on volume, machine model, and daily cleaning habits.
Pro tip: When replacing a gasket, make sure to use a Half Moon Cleaning Brush to clear all excess debris from the group head. This affordable tool was designed specifically for this task. A gasket’s other best friend is a little food safe grease to protect the rubber and extend its life.
Group Screens
Group screens, also called shower screens, help distribute water evenly across the coffee bed.
Over time, coffee oils and mineral deposits can accumulate on the shower screen, affecting water distribution during extraction. Regularly clean the group shower screen and replace it every 3 months or so to maintain even water distribution.
Pro tip: Keep a few of these on hand for quick replacement.
Portafilters
Portafilters are the vessels that hold the coffee grounds during the brewing process. Consider replacing portafilters and handles if you notice cracks, and ensure a snug fit for the filter basket.
Portafilter Baskets
Portafilter baskets hold the coffee bed and help control how water flows through the puck.
These sieves determine the quality of your brew as they affect the pressure and extraction of your espresso. Replace baskets when they are dented, clogged, misshapen, or no longer sitting correctly in the portafilter.
Pro tip: Make sure you get the right size baskets when you're stocking up. There are ones for single, double, pressurized, precision, and an array of other options.
Steam Wands & Steam Wand Tips
Steam wand o-rings, tips, nuts, and springs help maintain steam pressure, movement, and leak-free operation.
Small steam wand parts are easy to overlook, but they are often the cause of leaks, weak steam pressure, or a wand that does not move smoothly.
For a perfect froth, consider replacing steam wands if they show signs of damage or just don’t feel as clean as they used to. If you think you need a change, you probably do.
Steam & Water Valves
Steam and water valves control flow through the machine.
Valves work like little traffic controllers, regulating steam and water flow. Precision is required for both brewing and frothing milk. Valves may need replacing if you detect leaks, unusual noises, or stiffness in operation, as these could be precursors to issues. Valve rebuild kits are available as an economical alternative to replacing valves entirely. This is recommended once a year for steam valves.
GRINDER PARTS TO KEEP ON HAND
Grinder Burrs
Coffee grinder burrs determine grind consistency and size, which directly affects coffee and espresso extraction.
Worn burrs can make espresso harder to dial in, slow service, and create inconsistent extraction. If shots suddenly taste flat, run fast, or require constant grind adjustments, burr wear may be part of the problem.
Carefully consider your desired methods of brewing and make sure you have the correct burrs for all your machines.
Pro tip: These guys get worn down just a little bit every time you use them, so watch them closely. Learn more about grinder burr maintenance.
Hoppers
Clean and fresh is always better. Clean frequently but don’t be afraid to replace if your bean flow is off or there’s a little too much wear and tear. If you noticed your hopper is cracked, it's probably time to replace it before the crack exacerbates.
WATER FILTRATION AND TESTING
Water Filtration
Water filtration helps manage scale, water quality, and equipment protection.
Water is the most important organic ingredient in an espresso besides the coffee! A proper filter ensures consistent taste and better extraction. It can even help extend the life of your machine by minimizing accumulation of scale buildup and preventing corrosion.
We recommend looking into the Vivreau lineup of filters. All Vivreau filters are designed to provide multiple benefits, most importantly, protecting taste and aroma, as well as ease of installation and operation. You will find a filter that matches with your needs in terms of size and your exact filtration needs based on the results of testing.
Read our guide to water quality for espresso equipment to learn more about water filtration.
Water Testing
In order to understand the characteristics of your water, regular testing is recommended. Vivreau offers three test kits everybody should use, starting with the Vivreau Water Test Kit, which will give you an initial look at levels of chloride, chlorine, pH and alkalinity. This will determine how you proceed with the Temporary Hardness and Total Hardness kits.
We recommend downloading the Water Test Training guide from Vivreau for a detailed understanding of testing and how to find your optimal filter.
SMALL PARTS THAT CAN STOP SERVICE
Fittings, washers, and clips keep water lines and connections secure, but thread type and sizing must match the machine.
Switches & Capacitors
Test switches for responsiveness, and replace capacitors if you notice bulging or leakage. Electrical parts should be inspected and replaced by a qualified technician.
European (BSP) Thread Components
Replace fittings that are loose or show signs of wear to prevent leaks. Because so many espresso machines are made in Europe, it is very important to note exact sizes because National Pipe Thread (NPT) components are not compatible.
Washers and Clips
The unsung heroes holding it all together. Regularly check for wear and tear, and replace any components showing signs of damage, as they contribute to the overall stability of your machine.
WHEN TO USE AN ESPRESSO MACHINE REBUILD KIT
Save time and money with these life savers because why wait for something to go wrong? Be prepared with gaskets, screens, nuts and more.
Rebuild kits are helpful when you want compatible maintenance parts grouped together instead of ordering every gasket, screen, washer, or small fitting one at a time.
Before ordering replacement espresso machine parts, confirm your machine brand, model, group type, thread size, and part dimensions. Many parts look similar but are not interchangeable across machines.
SHOP ESPRESSO MACHINE REBUILD KITS
For Your Consideration:
Your Guide to Cleaning Essentials
A Look Inside Your Espresso Machine
FREQUENTLY ASKED QUESTIONS (FAQS)
What spare parts should every cafe keep for an espresso machine?
Every cafe should keep group gaskets, group screens, portafilter baskets, steam wand o-rings, steam wand tips, valve rebuild kits, fittings, washers, clips, and water filters on hand. Exact parts vary by machine model, so always confirm compatibility before ordering.
How often should espresso machine group gaskets be replaced?
Many cafes replace group gaskets about once per quarter, but timing depends on drink volume, machine model, cleaning routine, and gasket condition. Leaking during extraction or a loose portafilter can be signs that the gasket needs to be replaced.
What are signs that an espresso machine part needs replacing?
Common signs include leaks, loose portafilter fit, uneven water flow, weak steam pressure, stiff valves, unusual noises, cracked handles, dented baskets, clogged screens, or worn fittings.
Are NPT and BSP fittings interchangeable?
No. NPT and BSP fittings are different thread standards and should not be treated as interchangeable. Many espresso machines use European BSP thread components, so confirm the correct size and thread type before replacing fittings.
Do grinder parts matter for espresso machine maintenance?
Yes. Espresso quality depends on the grinder as much as the machine. Worn burrs, cracked hoppers, or poor bean flow can make espresso harder to dial in and affect consistency during service.
