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LEGO part 51239: Window Frame 1 x 3 x 3

Windows and Doors13 colours64 sets

LEGO part LEGO part 51239: Window Frame 1 x 3 x 3

Specifications

Reference51239
CategoryWindows and Doors
MaterialABS plastic
Colours13
Sets64
Listed pieces270
First appearance2019
Latest appearance2026
Element (Dark Brown)6331950
Most common colourDark Brown
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 51239, Window Frame 1 x 3 x 3, belongs to the Windows and Doors category. It exists in 13 colours and appears in 64 sets of our database, from 2019 to 2026, for a total of 270 listed pieces. Its most common colour is Dark Brown.

Number 51239 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in dark brown, it is 6331950.

Part 51239 through the years

The oldest set in our database that contains part 51239 is 75957 The Knight Bus, released in 2019 in the Harry Potter theme. It is still in use: the most recent set featuring it, 910060 Sushi Restaurant, dates from 2026.

Its peak year is 2026, with 12 sets containing it. The set with the most copies is 75957 The Knight Bus: 34 copies, against an average of 4.2 per set.

It is spread across several themes, led by Friends (19%), Harry Potter (17%) and LEGO Ideas and CUUSOO (9%). With 64 sets, it ranks no. 1,449 of 2,731 parts in our database and no. 31 of 76 in the Windows and Doors category.

Sets containing part 51239, by period

PeriodSets
20191
20204
20217
20226
202312
202411
202511
202612

Colours of part 51239

5 colours appear in only one set: dark purple (75957 The Knight Bus), pearl gold (21344 The Orient Express Train), green (60495 Recycling Truck), dark pink (42620 Olly's and Paisley's Family Homes) and red (60488 Fries Food Truck).

Colour (element ID)SetsPiecesExample sets
Dark Brown63319501639763887174110293
Light Bluish Gray63812531055103071030076417
Tan62878781025759691029710308
Black6424625 · 631189293440896501009242620
Reddish Brown65023739219100604268876464
Bright Light Orange6407954411764054261441748
White6550178 · 653785039418432106242671
Medium Nougat6422086284172941740
Dark Purple627870913475957
Pearl Gold645952112321344
Green65222561660495
Dark Pink64660391442620
Red65889351160488

Where to buy part 51239

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

Search part 51239 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 51239

Sets ranked by popularity that include at least one part 51239, in any colour.

Related parts

More parts in the Windows and Doors category

All parts in the Windows and Doors category

Frequently asked questions

How many LEGO sets include part 51239?

Part 51239 (Window Frame 1 x 3 x 3) appears in 64 sets listed on Setopedia, from 2019 to 2026, in any colour.

Which LEGO set contains the most copies of part 51239?

Set 75957 The Knight Bus, released in 2019, contains 34 copies, the highest count in our database. On average, a set containing part 51239 has 4.2.

Which colours does LEGO part 51239 come in?

13 colours are listed for part 51239. The most common is Dark Brown, found in 16 sets.

What is the rarest colour of part 51239?

According to our inventories, it is red, found in only 1 set (60488 Fries Food Truck).

What is the element ID of part 51239 in dark brown?

In dark brown, part 51239 has element ID 6331950. Number 51239 is the mould number, the same for every colour.

Is LEGO part 51239 still used in recent sets?

Yes: it appears in sets released in 2026, such as 910060 Sushi Restaurant.

Where can I buy LEGO part 51239 individually?

Single parts 51239 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.