Gaskets for the De'Longhi Linea Classic
- Size matches the 51mm De'Longhi Linea Classic group.
- Listing claims compatibility with DeLonghi machines.
- Confirm any portafilter, basket, or bottomless portafilter is listed for the EM450M three-ear 51mm portafilter - De'Longhi's 51mm ear/tab geometry differs from other brands' 51mm parts.
- This is a single-thermoblock pump machine, and machines in this price class typically aren't designed to backflush (no 3-way solenoid), so blank/blind baskets and backflush cleaning discs generally don't apply - confirm in the EM450M manual before buying a backflush disc.
- The bundled 'tamper' is a lightweight plastic scoop-tamper; treat a real 51mm flat tamper as an upgrade, not an accessory match to the stock piece.
- What size to buy
- Buy 51mm for the De'Longhi Linea Classic.
- What to avoid
- Avoid 54mm and 58mm gaskets - they will not fit the 51mm group.
- If you own another machine
- Own a Breville Bambino? Use the 54mm page instead - these 51mm parts will not fit it.
Affiliate disclosure: this page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. We have not physically tested these products; all compatibility analysis is based on manufacturer specifications and publicly available listing data. "Seller-claimed" means a marketplace listing asserts the fit; it is not manufacturer-confirmed. Verify size against your machine before purchase.
Recommended matches
Check carefully
Possible fits we couldn't fully verify - confirm size and compatibility on the listing before buying.
Won't fit / not recommended
Listed for reference only - these are the wrong size or for a different machine, so we don't recommend them for this machine.
Before buying gaskets
Does any 51mm gasket fit the De'Longhi Linea Classic?
No. The nominal size is only the first check. Model-specific locking geometry, basket depth, mounting pattern, or clearance may also matter. Confirm any portafilter, basket, or bottomless portafilter is listed for the EM450M three-ear 51mm portafilter - De'Longhi's 51mm ear/tab geometry differs from other brands' 51mm parts.
Is a gasket the first upgrade to buy?
Not automatically. The De'Longhi Linea Classic's stored upgrade order starts with tamper; fix grinder, basket, dose, or maintenance issues before adding optional tools.
Affiliate disclosure: this page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. We have not physically tested these products; all compatibility analysis is based on manufacturer specifications and publicly available listing data. "Seller-claimed" means a marketplace listing asserts the fit; it is not manufacturer-confirmed. Verify size against your machine before purchase.