Setobrick

LEGO part 12939: Brick Arch 1 x 6 x 2 - Very Thin Top without Reinforced Underside

Bricks Curved7 colours32 sets

LEGO part LEGO part 12939: Brick Arch 1 x 6 x 2 - Very Thin Top without Reinforced Underside

Specifications

Reference12939
CategoryBricks Curved
MaterialABS plastic
Colours7
Sets32
Listed pieces72
First appearance2012
Latest appearance2016
Element (White)6023878
Most common colourWhite
Main themesFriends, Disney, Elves
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 12939, Brick Arch 1 x 6 x 2 - Very Thin Top without Reinforced Underside, belongs to the Bricks Curved category. It exists in 7 colours and appears in 32 sets of our database, from 2012 to 2016, for a total of 72 listed pieces. Its most common colour is White.

Number 12939 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in white, it is 6023878.

Part 12939 through the years

The oldest set in our database that contains part 12939 is 9474 The Battle of Helm's Deep, released in 2012 in the The Hobbit and Lord of the Rings theme. No set in our database uses it after 2016, the year of 60130 Prison Island. To get it today, look for older sets or buy it second-hand.

Its peak year is 2015, with 9 sets containing it. The set with the most copies is 41101 Heartlake Grand Hotel: 6 copies, against an average of 2.2 per set.

It is spread across several themes, led by Friends (16%), Disney (12%) and Elves (12%). With 32 sets, it ranks no. 2,102 of 2,731 parts in our database and no. 81 of 96 in the Bricks Curved category.

Sets containing part 12939, by period

PeriodSets
20122
20138
20149
20159
20164

Colours of part 12939

3 colours appear in only one set: red (40081 LEGOLAND Picture Frame - Florida Edition), bright light yellow (41058 Heartlake Shopping Mall) and medium nougat (70010 The Lion CHI Temple).

Colour (element ID)SetsPiecesExample sets
White6023878924750214106860109
Light Bluish Gray6040251917750606013070404
Tan6040250713710064106841073
Dark Bluish Gray6040252510750177016576017
Red60402481440081
Bright Light Yellow60828321241058
Medium Nougat60402531270010

Where to buy part 12939

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

Search part 12939 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 12939

Sets ranked by popularity that include at least one part 12939, in any colour.

Related parts

More parts in the Bricks Curved category

All parts in the Bricks Curved category

Frequently asked questions

How many LEGO sets include part 12939?

Part 12939 (Brick Arch 1 x 6 x 2 - Very Thin Top without Reinforced Underside) appears in 32 sets listed on Setopedia, from 2012 to 2016, in any colour.

Which LEGO set contains the most copies of part 12939?

Set 41101 Heartlake Grand Hotel, released in 2015, contains 6 copies, the highest count in our database. On average, a set containing part 12939 has 2.2.

Which colours does LEGO part 12939 come in?

7 colours are listed for part 12939. The most common is White, found in 9 sets.

What is the rarest colour of part 12939?

According to our inventories, it is bright light yellow, found in only 1 set (41058 Heartlake Shopping Mall).

What is the element ID of part 12939 in white?

In white, part 12939 has element ID 6023878. Number 12939 is the mould number, the same for every colour.

Is LEGO part 12939 still used in recent sets?

Not in our database: its last set dates from 2016 (60130 Prison Island). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 12939 individually?

Single parts 12939 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.