Coffee Gear Finds
Gasket & seal51mmNeeds verification

Replacement Silicone Grouphead Gasket (51mm)

Prevents portafilter leaks around the rim. Soft food-grade silicone.

Gasket fit depends on the bayonet collar and its depth, not just diameter. Only documented machine pairings are listed.

Brand or maker
Unbranded / not specified
Product type
Gasket & seal
Replacement silicone grouphead gasket

Best for

  • check_circleFixing leaks around the portafilter rim
  • check_circleRoutine wear replacement

tune Details

Diameter
51 mm
Relevant to grouphead fit
Material
Food-grade silicone
Fit
Bayonet collar
Depth must match the group

handyman Will it fit my machine?

CASABREWS CM5418Confirmed fit

Basis: The CM5418 uses a 51mm grouphead bayonet collar; a 51mm silicone gasket is documented for that collar.

CASABREWS 5418 ProNeeds verification

Basis: Same nominal 51mm collar, but the existing comparison notes gasket depth may differ slightly.

Fit labels reflect published documentation, not physical testing.

source Where this information comes from

  • task_altExisting 51mm gasket compatibility notes
shopping_bag

Where to buy

Retailer link not available yet.

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Same product type, or another product documented for the same machine.

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