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LEGO part 3666: Plate 1 x 6

Plates48 colours4,393 sets

LEGO part LEGO part 3666: Plate 1 x 6

Specifications

Reference3666
CategoryPlates
MaterialABS plastic
Colours48
Sets4,393
Listed pieces35,432
First appearance1995
Latest appearance2026
Dimensions (mm)7.8 x 47.8 x 3.2
Element (Black)366626
Most common colourBlack
Main themesStar Wars, City, Friends
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3666, Plate 1 x 6, belongs to the Plates category. It exists in 48 colours and appears in 4,393 sets of our database, from 1995 to 2026, for a total of 35,432 listed pieces. Its most common colour is Black.

Number 3666 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 366626.

Size 1 x 6 studs: 7.8 x 47.8 mm footprint and 3.2 mm high, studs excluded, one third of a brick.

Part 3666 through the years

The oldest set in our database that contains part 3666 is 6090 Royal Knight's Castle, released in 1995 in the Castle theme. It is still in use: the most recent set featuring it, 75425 Mos Eisley Cantina, dates from 2026.

Its peak year is 2025, with 350 sets containing it. The set with the most copies is 10307 Eiffel Tower: 674 copies, against an average of 8.1 per set.

It is spread across several themes, led by Star Wars (11%), City (10%) and Friends (7%). With 4,393 sets, it ranks no. 11 of 2,731 parts in our database and no. 7 of 39 in the Plates category.

Sets containing part 3666, by period

PeriodSets
1995-1999232
2000-2009637
2010-20191,605
2020-20261,919

Colours of part 3666

3 colours appear in only one set: pearl gold (21344 The Orient Express Train), warm tan (43015 Lionel Messi : Football Legend) and pink (5835 Dance Studio).

Colour (element ID)SetsPiecesExample sets
Black3666261,3545,395103004212875347
White6552107 · 65482651,0014,391103007177475301
Light Bluish Gray42114389174,321103007104310305
Dark Bluish Gray42110568203,762103077533771043
Red3666215511,836103001030575955
Tan4124067 · 3666055062,068710437643510316
Reddish Brown42215904862,011417037104376435
Yellow3666243631,208103006033675252
Blue3666233421,068103071030075331
Dark Tan60154242461,223417037104310305
Green366628205671311097104010308
Dark Blue4508313 · 4177734193721764356033671040
Dark Red4539062 · 4164108182828751927694810312
Orange4173332 · 4122466162530603357510210302
Lime4534665 · 4529160158414603376033542115
Medium Azure6603312 · 4625036138426106981069660421
Light Gray3666021173976090100304709
Bright Light Orange6020074108378432497595410294
Medium Nougat6295464105324103051031676218
Dark Green6618082 · 424556695507213181030821333
Dark Orange6253418 · 424438583293103051031610297
Magenta6003206 · 465410572226602957641943202
Dark Purple4655691 · 422514162190413956040860313
Sand Green6099187 · 450479561239103167621821325
Dark Azure6151657 · 608983353135432491031231108
Dark Turquoise629178247140604136031971799
Medium Blue417982946240417037595375968
Dark Pink609709444121717754139541424
Medium Lavender6015109 · 464974543138102784144976215
Bright Light Yellow621135642123714111031231097
Dark Brown6223039 · 456670441217764027621821318
Bright Pink60582223995432497695621170
Light Aqua614670237126414494319743194
Lavender62040712985414504168443030
Dark Gray4109987 · 366627281571003071637191
Bright Light Blue636198526127102931029877942
Reddish Orange64690871948721531138560503
Olive Green6278089 · 60311261777762174211010283
Coral64223791646426974325843021
Vibrant Yellow65251591239605084302560505
Brown4129580 · 3666255114714718010150
Yellowish Green6566895 · 6088526313432917215843008
Aqua414114835440558503149
Blue Violet66055352234303131392
Sand Blue6257462 · 41694642447201382
Pearl Gold6449109 · 624004813021344
Warm Tan66300761443015
Pink366609115835

Where to buy part 3666

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

Search part 3666 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 3666

Sets ranked by popularity that include at least one part 3666, in any colour.

Often found with part 3666

Parts that share the most sets with part 3666, based on set inventories.

Minifigures using part 3666

Part 3666 is used in 6 catalogued minifigure variants. Characters:

More parts in the Plates category

All parts in the Plates category

Frequently asked questions

How many LEGO sets include part 3666?

Part 3666 (Plate 1 x 6) appears in 4,393 sets listed on Setopedia, from 1995 to 2026, in any colour.

Which LEGO set contains the most copies of part 3666?

Set 10307 Eiffel Tower, released in 2022, contains 674 copies, the highest count in our database. On average, a set containing part 3666 has 8.1.

Which colours does LEGO part 3666 come in?

48 colours are listed for part 3666. The most common is Black, found in 1,354 sets.

What is the rarest colour of part 3666?

According to our inventories, it is pink, found in only 1 set (5835 Dance Studio).

What is the element ID of part 3666 in black?

In black, part 3666 has element ID 366626. Number 3666 is the mould number, the same for every colour.

Is LEGO part 3666 still used in recent sets?

Yes: it appears in sets released in 2026, such as 75425 Mos Eisley Cantina.

Where can I buy LEGO part 3666 individually?

Single parts 3666 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.