Setobrick

LEGO part 4287b: Brick Sloped Inverted 34° 3 x 1 with Internal Stopper

Bricks Sloped16 colours377 sets

LEGO part LEGO part 4287b: Brick Sloped Inverted 34° 3 x 1 with Internal Stopper

Specifications

Reference4287b
CategoryBricks Sloped
MaterialABS plastic
Colours16
Sets377
Listed pieces1,663
First appearance2004
Latest appearance2020
Most common colourDark Bluish Gray
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 4287b, Brick Sloped Inverted 34° 3 x 1 with Internal Stopper, belongs to the Bricks Sloped category. It exists in 16 colours and appears in 377 sets of our database, from 2004 to 2020, for a total of 1,663 listed pieces. Its most common colour is Dark Bluish Gray.

Number 4287b is the LEGO mould number, the one embossed under the part or inside the studs. It is the reference used by Rebrickable, BrickLink and the Pick a Brick service to name the shape regardless of colour: each shape and colour combination then gets its own element number.

Part 4287b through the years

The oldest set in our database that contains part 4287b is 4504 Millennium Falcon (Blue Box Version), released in 2004 in the Star Wars theme. No set in our database uses it after 2020, the year of 31109 Pirate Ship. To get it today, look for older sets or buy it second-hand.

Its peak year is 2012, with 37 sets containing it. The set with the most copies is 2000409 Window Exploration Bag: 200 copies, against an average of 4.4 per set.

It is spread across several themes, led by Star Wars (22%), Creator (11%) and Ninjago (6%). With 377 sets, it ranks no. 446 of 2,731 parts in our database and no. 28 of 105 in the Bricks Sloped category.

Sets containing part 4287b, by period

PeriodSets
2004-2009113
2010-2019251
202013

Colours of part 4287b

3 colours appear in only one set: maersk blue (10152 Maersk Sealand Container Ship 2004 Edition), pastel blue (10155 Maersk Line Container Ship 2010 Edition) and dark purple (4755 Knight Bus).

Colour (element ID)SetsPiecesExample sets
Dark Bluish Gray105537752523110975055
Light Bluish Gray86284752526021521322
White77242102617502110240
Black4717310221950010237
Reddish Brown40129751927515975978
Red3288710443103270750
Yellow143621307790571016
Blue134875919949976076
Dark Green1343751681023510697
Bright Light Orange316213037065260159
Green39709226002121311
Sand Blue418247838450847464770
Dark Red2161024110155
Maersk Blue11610152
Pastel Blue11610155
Dark Purple4225270124755

Where to buy part 4287b

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Search part 4287b on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 4287b

Sets ranked by popularity that include at least one part 4287b, in any colour.

Related parts

Often found with part 4287b

Parts that share the most sets with part 4287b, based on set inventories.

More parts in the Bricks Sloped category

All parts in the Bricks Sloped category

Frequently asked questions

How many LEGO sets include part 4287b?

Part 4287b (Brick Sloped Inverted 34° 3 x 1 with Internal Stopper) appears in 377 sets listed on Setopedia, from 2004 to 2020, in any colour.

Which LEGO set contains the most copies of part 4287b?

Set 2000409 Window Exploration Bag, released in 2010, contains 200 copies, the highest count in our database. On average, a set containing part 4287b has 4.4.

Which colours does LEGO part 4287b come in?

16 colours are listed for part 4287b. The most common is Dark Bluish Gray, found in 105 sets.

What is the rarest colour of part 4287b?

According to our inventories, it is dark purple, found in only 1 set (4755 Knight Bus).

Is LEGO part 4287b still used in recent sets?

Not in our database: its last set dates from 2020 (31109 Pirate Ship). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 4287b individually?

Single parts 4287b can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.

How do I identify a LEGO part number?

The mould number is embossed under the part or inside the studs. For the Brick Sloped Inverted 34° 3 x 1 with Internal Stopper, it is number 4287b, shared by all its colours.