Setobrick

LEGO part 6394: Duplo Brick 2 x 4 x 2 with 2 x 2 Square Arch

Duplo, Quatro and Primo10 colours65 sets

LEGO part LEGO part 6394: Duplo Brick 2 x 4 x 2 with 2 x 2 Square Arch

Specifications

Reference6394
CategoryDuplo, Quatro and Primo
MaterialABS plastic
Colours10
Sets65
Listed pieces133
First appearance1995
Latest appearance2013
Element (Red)639421
Most common colourRed
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 6394, Duplo Brick 2 x 4 x 2 with 2 x 2 Square Arch, belongs to the Duplo, Quatro and Primo category. It exists in 10 colours and appears in 65 sets of our database, from 1995 to 2013, for a total of 133 listed pieces. Its most common colour is Red.

Number 6394 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in red, it is 639421.

Part 6394 through the years

The oldest set in our database that contains part 6394 is 9175 Push Train, released in 1995 in the Educational and Dacta theme. No set in our database uses it after 2013, the year of 10518 My First Construction Site. To get it today, look for older sets or buy it second-hand.

Its peak year is 1995, with 9 sets containing it. The set with the most copies is 5554 Thomas Load and Carry Train Set: 6 copies, against an average of 2 per set.

The part is closely tied to the Duplo theme: 71% of the sets that contain it belong to it. With 65 sets, it ranks no. 1,434 of 2,731 parts in our database and no. 25 of 122 in the Duplo, Quatro and Primo category.

Sets containing part 6394, by period

PeriodSets
1995-199925
2000-200937
2010-20133

Colours of part 6394

2 colours appear in only one set: bright light blue (4820 Princess' Palace) and white (3619 Traffic Town (Explore)).

Colour (element ID)SetsPiecesExample sets
Red63942126535634105189209
Yellow4221004 · 6394241317965655365416
Black4506287 · 41427951011554449885371
Green639428920200040027979063
Blue4267406 · 639423818922949874965
Dark Orange6004949 · 416445455541954925552
Light Bluish Gray45070092455444988
Dark Red42650022333015554
Bright Light Blue4260816114820
White4171979 · 4142796113619

Where to buy part 6394

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

Search part 6394 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 6394

Sets ranked by popularity that include at least one part 6394, in any colour.

Often found with part 6394

Parts that share the most sets with part 6394, based on set inventories.

More parts in the Duplo, Quatro and Primo category

All parts in the Duplo, Quatro and Primo category

Frequently asked questions

How many LEGO sets include part 6394?

Part 6394 (Duplo Brick 2 x 4 x 2 with 2 x 2 Square Arch) appears in 65 sets listed on Setopedia, from 1995 to 2013, in any colour.

Which LEGO set contains the most copies of part 6394?

Set 5554 Thomas Load and Carry Train Set, released in 2005, contains 6 copies, the highest count in our database. On average, a set containing part 6394 has 2.

Which colours does LEGO part 6394 come in?

10 colours are listed for part 6394. The most common is Red, found in 26 sets.

What is the rarest colour of part 6394?

According to our inventories, it is bright light blue, found in only 1 set (4820 Princess' Palace).

What is the element ID of part 6394 in red?

In red, part 6394 has element ID 639421. Number 6394 is the mould number, the same for every colour.

Is LEGO part 6394 still used in recent sets?

Not in our database: its last set dates from 2013 (10518 My First Construction Site). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 6394 individually?

Single parts 6394 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.