Setobrick

LEGO part 3747b: Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin

Bricks Sloped23 colours1,022 sets

LEGO part LEGO part 3747b: Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin

Specifications

Reference3747b
CategoryBricks Sloped
MaterialABS plastic
Colours23
Sets1,022
Listed pieces3,129
First appearance1995
Latest appearance2026
Element (Black)4500458 · 374726
Most common colourBlack
Main themesStar Wars, Creator, City
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3747b, Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin, belongs to the Bricks Sloped category. It exists in 23 colours and appears in 1,022 sets of our database, from 1995 to 2026, for a total of 3,129 listed pieces. Its most common colour is Black.

Number 3747b identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in black, it is 4500458.

Part 3747b through the years

The oldest set in our database that contains part 3747b is 8485 Control Centre / Control II, released in 1995 in the Technic theme. It is still in use: the most recent set featuring it, 71861 The Old Town 15th Anniversary, dates from 2026.

Its peak year is 2015, with 65 sets containing it. The set with the most copies is 852293 Fantasy Era Castle Giant Chess Set: 36 copies, against an average of 3.1 per set.

It is spread across several themes, led by Star Wars (15%), Creator (10%) and City (8%). With 1,022 sets, it ranks no. 158 of 2,731 parts in our database and no. 11 of 105 in the Bricks Sloped category.

Sets containing part 3747b, by period

PeriodSets
1995-199937
2000-2009205
2010-2019513
2020-2026267

Colours of part 3747b

6 colours appear in only one set: medium lavender (43031 Olivia Rodrigo’s Dual Guitar), maersk blue (10152 Maersk Sealand Container Ship 2004 Edition), sand green (10702 Creative Building Set), medium azure (41346 Friendship Box), dark tan (77940 Mighty Dinosaurs - Brown Version), …

Colour (element ID)SetsPiecesExample sets
Black4500458 · 374726204473103007177576949
Dark Bluish Gray4211064191604710437519275252
Light Bluish Gray4211570189589103007533775347
White4500469156430106967177071040
Reddish Brown4508616 · 421791695212311203110971767
Red450046287209763917172060216
Blue450944377177311096032410692
Yellow4500459 · 37472464164714117139541718
Tan4500453 · 422560950107417037643575257
Orange45004682446106967176241702
Dark Blue1638602667176631114
Dark Red6457943102975354753627961
Medium Nougat6535832611113847216872151
Green451994539976249244175
Magenta626378636800104137343182
Dark Azure66367673570701725373815
Pastel Blue4250617231021910155
Medium Lavender66352031943031
Maersk Blue1210152
Sand Green41550481210702
Medium Azure1241346
Dark Tan63731101177940
Bright Light Yellow63733061177941

Where to buy part 3747b

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

Search part 3747b on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 3747b

Sets ranked by popularity that include at least one part 3747b, in any colour.

Related parts

Often found with part 3747b

Parts that share the most sets with part 3747b, 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 3747b?

Part 3747b (Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin) appears in 1,022 sets listed on Setopedia, from 1995 to 2026, in any colour.

Which LEGO set contains the most copies of part 3747b?

Set 852293 Fantasy Era Castle Giant Chess Set, released in 2008, contains 36 copies, the highest count in our database. On average, a set containing part 3747b has 3.1.

Which colours does LEGO part 3747b come in?

23 colours are listed for part 3747b. The most common is Black, found in 204 sets.

What is the rarest colour of part 3747b?

According to our inventories, it is dark tan, found in only 1 set (77940 Mighty Dinosaurs - Brown Version).

What is the element ID of part 3747b in black?

In black, part 3747b has element ID 4500458 or 374726. Number 3747b is the mould number, the same for every colour.

Is LEGO part 3747b still used in recent sets?

Yes: it appears in sets released in 2026, such as 71861 The Old Town 15th Anniversary.

Where can I buy LEGO part 3747b individually?

Single parts 3747b 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.