What it is

The silicone O-ring that seals the brew unit (filter) to the generator on De’Longhi fully automatic espresso machines. It is the usual cause of water appearing under the machine during brewing, noticeably weaker brewing pressure, and steam or water escaping around the generator housing. Silicone hardens and flattens with heat and pressure, so this is a service item, not a once-in-a-lifetime part.

Size

43.6 mm outside diameter, 35.2 mm inside diameter, 4.2 mm section, orange silicone. Measure the ring you are removing — a ring that is close but not exact will leak again within weeks.

Why a 6-pack

The brew unit carries two of these rings and the brewing piston one, so a full reseal uses three. Six rings give you a complete reseal plus a spare set to keep on the shelf — worth having, because once one ring has gone the others are the same age.

Fits

De’Longhi fully automatic machines across the EAM, ESAM, ECAM and ETAM ranges — including EAM3200/3300/3400/3500/4000/4400/4500, ECAM22xxx/23xxx/25xxx/26xxx/28xxx/44xxx/45xxx and ESAM2000/3300/3500/4400/4500/5400/5500/5600/6600/6620/6700/6900.

Replaces

5332149100 — also cross-listed as B2014.

Fitting

Unplug the machine and let it cool and depressurise before you open it. Note which way the old ring sits before removing it, lubricate the new ring with a little food-grade silicone grease, seat it evenly in its groove and do not over-tighten the housing. Run a plain water cycle afterwards and check underneath for drips.

Before you order

Send us your machine model number and we will confirm the fit before you buy. If it does not fit, we replace it.

Trademark notice

De’Longhi and the part numbers listed are trademarks of their respective owners. This listing is not affiliated with, endorsed by, or sponsored by them. Part numbers are given only to identify the part this product replaces.

Coffee Machine Parts

5332149100 O-Ring for De’Longhi Espresso Machines — 6 Pack, Brew Unit / Generator Seal