Find your part by model
Your model number is on the label on the machine. Match it to a column.
Where each number comes from is shown under each part below.
Group head gasket
You need it if water or steam leaks around the group head when you brew, or the portafilter gets hard to lock in.
54 mm machines (Barista Express, Barista Pro, Bambino, Bambino Plus): SP0001474, 65 mm outside, 49 mm inside, 6.8 mm thick, silicone. coffeesection.com The same ring is also sold as SP0025526. salinapp.com.au
Dual Boiler: SP0001635, 70.8 mm outside, 48 mm inside, 8.8 mm thick. coffeesection.com

For the 54 mm machines. The listing names the Barista Pro, Express, Bambino Plus and Bambino.

Also for 54 mm machines. Lower price.

For the 58 mm Dual Boiler (900 series).
Shower screen
You need it if shots come out thin or uneven, the puck is wet or pitted, or the screen is clogged and stained.
54 mm machines take a 54 mm screen. A seller lists Breville number SP0001475 for it. ricambi.com.au Another IMS listing pairs it with SP0020020 and names the Barista Pro and Bambino Plus. coffeeaddicts.us The Dual Boiler uses a 58 mm screen and holder, listed as SP0001640. coffeeaddicts.ca

A 54 mm screen. The listing names the Express, Bambino and Bambino Plus.

A 58 mm screen, holder and gasket kit. The listing says it fits the Dual Boiler only.
Filter baskets
You need one if a basket is dented, the holes are clogged, or you lost one. Check the size first: the four smaller machines take 54 mm baskets and the Dual Boiler takes 58 mm. Every model comes with single wall and dual wall baskets.
Breville’s product pages list the baskets in the box: BES870 BES878 BES500 BES450 BES920.

Breville’s own 54 mm single wall basket, 2 cup. The listing names the Express, Pro, Bambino and Bambino Plus.

Breville’s own 54 mm dual wall basket, 1 cup. Same fit.

Breville’s own 58 mm dual wall basket, 2 cup, for the Dual Boiler.
Water filter
You need it if the date dial on the filter shows two months are up, or the water tastes off. Breville’s BWF100 page lists the Barista Express, Barista Pro and Dual Boiler (Dual Boilers with batch 1800 and earlier; Breville says to check the batch code on your filter or machine). The Bambino and Bambino Plus are not on that list. breville.com

Breville’s own BWF100 filters, six to a pack. About a year’s supply.

Six filters that say they replace the BWF100, plus 40 cleaning tablets. The listing names the Barista Express.
Steam wand tip
You need it if milk steams weakly or sprays sideways, or the holes are blocked.
A seller lists SP0001486 for the Barista Express. ricambi.com.au

A 4-hole stainless tip. The listing names the 870, 875, 878 and Bambino Plus.
Grinder burrs (Barista Express and Barista Pro)
You need them if the grind is uneven or loud, or the finest setting no longer grinds fine.
The burr you need depends on your machine’s production date code. Upper burr SP0001801 is for machines made before date code 1926 (about June 2019). ricambi.com.au Lower burr SP0001806 is for those machines, and SP0027463 is for machines made after. ricambi.com.au

An upper burr assembly numbered BES870XL/06.8. The listing says it fits the Barista Express.
The Bambino, Bambino Plus and Dual Boiler have no grinder, so they have no burrs.
Questions people ask
What size is the Breville Barista Express group head gasket?
65 mm across, 49 mm inside and 6.8 mm thick, in silicone. The Breville number is SP0001474. coffeesection.com
Is the Bambino portafilter 54 mm or 58 mm?
54 mm. So are the Bambino Plus, Barista Express and Barista Pro. The Dual Boiler is 58 mm. Breville Bambino page
Do 54 mm parts fit the Dual Boiler?
No. The Dual Boiler has a 58 mm group head, so its gasket, screen and baskets are different sizes.
How often should I change the Breville water filter?
Every two months, according to Breville. The Bambino and Bambino Plus are not on Breville’s BWF100 fit list.
More for Breville owners
Where the numbers come from
Part numbers and sizes come from Breville’s pages and from parts sellers. Each links to its page above. Prices come from Amazon.