Gaskets for the Chefman CraftBrew

Fits the 51mm group inferred from size

Size matches the 51mm Chefman CraftBrew group.
Compatibility inferred from size; not stated by the listing.

The portafilter ear/lug pattern on this Chefman group is proprietary and undocumented. Even a correctly-sized 51mm third-party bottomless or spouted portafilter may NOT twist and lock into this group. Verify the exact ear/lug geometry against your machine (or confirm the seller lists Chefman RJ54 fitment) BEFORE buying any replacement portafilter.
The steam wand's tip is not documented as a user-replaceable part. Do not assume aftermarket steam tips will thread on - verify fitment before buying one.
The shower screen is not a documented serviceable part; aftermarket screens are not known to fit.
Safest accessory buys are size-agnostic: a 51mm tamper, a knock box, a cleaning brush, descaler and a milk pitcher.

What size to buy: Buy 51mm for the Chefman CraftBrew.
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

Fits the 51mm group inferred from size 51mm Under $25

Why: Size matches the 51mm Chefman CraftBrew group. Compatibility inferred from size; not stated by the listing.

⚠ Check first: The portafilter ear/lug pattern on this Chefman group is proprietary and undocumented. Even a correctly-sized 51mm third-party bottomless or spouted portafilter may NOT twist and lock into this group. Verify the exact ear/lug geometry against your machine (or confirm the seller lists Chefman RJ54 fitment) BEFORE buying any replacement portafilter.

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Group Gasket For Delonghi Dedica EC680/685, 51mm Silicone Steam Ring, Durable, No BPA Grouphead Gasket Replacement Part

Fits the 51mm group inferred from size 51mm Under $25

Why: Size matches the 51mm Chefman CraftBrew group. Compatibility inferred from size; not stated by the listing.

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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

Size not stated no fit info

Why: No portafilter size stated; fit cannot be judged.

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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.

Wrong size - 54mm different group

This listing is for a different machine ecosystem - it names Breville gear, not the 51mm Chefman CraftBrew.

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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 Chefman CraftBrew.

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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 Chefman CraftBrew.

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Before buying gaskets

Does any 51mm gasket fit the Chefman CraftBrew?

No. The nominal size is only the first check. Model-specific locking geometry, basket depth, mounting pattern, or clearance may also matter. The portafilter ear/lug pattern on this Chefman group is proprietary and undocumented. Even a correctly-sized 51mm third-party bottomless or spouted portafilter may NOT twist and lock into this group. Verify the exact ear/lug geometry against your machine (or confirm the seller lists Chefman RJ54 fitment) BEFORE buying any replacement portafilter.

Is a gasket the first upgrade to buy?

Not automatically. The Chefman CraftBrew's stored upgrade order starts with tamper; fix grinder, basket, dose, or maintenance issues before adding optional tools.