Coffee Setup Guide

Gaskets for the De'Longhi Dedica

Fits the 51mm group seller says it fits
What size to buy
Buy 51mm for the De'Longhi Dedica.
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

51mm Silicone Gasket Sealing Ring Compatible with Delonghi Dedica EC680/EC685/EC885/EC890/EC950,La Specialista EC9335M/EC9355M/EC9665M Espresso Machines Gasket Replacement BPA Free-2pcs
51mm Silicone Gasket Sealing Ring Compatible with Delonghi Dedica EC680/EC685/EC885/EC890/EC950,La Specialista EC9335M/EC9355M/EC9665M Espresso Machines Gasket Replacement BPA Free-2pcs
Fits the 51mm group seller says it fits 51mm Under $25
Why: Size matches the 51mm De'Longhi Dedica group. Listing names a DeLonghi model or machine it claims to fit.
⚠ Check first: This is a 51mm group with a plastic portafilter insert - 54mm and 58mm accessories will not fit, and some 51mm precision baskets require removing the insert.
Check price on Amazon
Report compatibility issue
Group Gasket For Delonghi Dedica EC680/685, 51mm Silicone Steam Ring, Durable, No BPA Grouphead Gasket Replacement Part
Group Gasket For Delonghi Dedica EC680/685, 51mm Silicone Steam Ring, Durable, No BPA Grouphead Gasket Replacement Part
Fits the 51mm group seller says it fits 51mm Under $25
Why: Size matches the 51mm De'Longhi Dedica group. Listing names a DeLonghi model or machine it claims to fit.
⚠ Check first: This is a 51mm group with a plastic portafilter insert - 54mm and 58mm accessories will not fit, and some 51mm precision baskets require removing the insert.
Check price on Amazon
Report compatibility issue

Check carefully

Possible fits we couldn't fully verify - confirm size and compatibility on the listing before buying.

Silicone Gasket Steam Seal Ring for Delonghi Dedica EC680 EC685 EC695 EC820 EC785 EC885 EC850 EC860 EC9335M EC9355M EC9665M & Smeg ECF01, 4-Pack
Silicone Gasket Steam Seal Ring for Delonghi Dedica EC680 EC685 EC695 EC820 EC785 EC885 EC850 EC860 EC9335M EC9355M EC9665M & Smeg ECF01, 4-Pack
Size not stated no fit info
Why: No portafilter size stated; fit cannot be judged.
⚠ Check first: This is a 51mm group with a plastic portafilter insert - 54mm and 58mm accessories will not fit, and some 51mm precision baskets require removing the insert.
Check price on Amazon
Report compatibility issue

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.

54mm Cafelat Silicone Gasket for Breville Sage Barista Pro, Express, Bambino Plus, Impress, Barista Touch, Infuser, Infuse, Perfetta, Barista Perfetta Plus.
54mm Cafelat Silicone Gasket for Breville Sage Barista Pro, Express, Bambino Plus, Impress, Barista Touch, Infuser, Infuse, Perfetta, Barista Perfetta Plus.
Wrong size - 54mm different group
This listing is for a different machine ecosystem - it names Breville gear, not the 51mm De'Longhi Dedica.
Check price on Amazon
Report compatibility issue
2PCS 54mm Silicone Steam Ring for Breville Espresso Machine 878/870/860/880/810/840/450/500 and Sage 880/878/875/870/810/500, Breville Espresso Machine Accessories Grouphead Gasket Replacement Part
2PCS 54mm Silicone Steam Ring for Breville Espresso Machine 878/870/860/880/810/840/450/500 and Sage 880/878/875/870/810/500, Breville Espresso Machine Accessories Grouphead Gasket Replacement Part
Wrong size - 54mm different group
This listing is for a different machine ecosystem - it names Breville gear, not the 51mm De'Longhi Dedica.
Check price on Amazon
Report compatibility issue
Gasket made for Gaggia Classic Espresso Machine. Cafelat Gasket 8.5mm and 111 Grease.
Gasket made for Gaggia Classic Espresso Machine. Cafelat Gasket 8.5mm and 111 Grease.
Different ecosystem different machine
This listing is for a different machine ecosystem - it names Gaggia gear, not the 51mm De'Longhi Dedica.
Check price on Amazon
Report compatibility issue

Before buying gaskets

Does any 51mm gasket fit the De'Longhi Dedica?

No. The nominal size is only the first check. Model-specific locking geometry, basket depth, mounting pattern, or clearance may also matter. This is a 51mm group with a plastic portafilter insert - 54mm and 58mm accessories will not fit, and some 51mm precision baskets require removing the insert.

Is a gasket the first upgrade to buy?

Not automatically. The De'Longhi Dedica's stored upgrade order starts with filter basket; 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.