Setobrick

LEGO part 2391: Technic Beam 1 x 7 Thick with Alternating Holes

Technic Beams9 colours68 sets

LEGO part LEGO part 2391: Technic Beam 1 x 7 Thick with Alternating Holes

Specifications

Reference2391
CategoryTechnic Beams
MaterialABS plastic
Colours9
Sets68
Listed pieces309
First appearance2023
Latest appearance2026
Element (Black)6435016
Most common colourBlack
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 2391, Technic Beam 1 x 7 Thick with Alternating Holes, belongs to the Technic Beams category. It exists in 9 colours and appears in 68 sets of our database, from 2023 to 2026, for a total of 309 listed pieces. Its most common colour is Black.

Number 2391 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 6435016.

Part 2391 through the years

The oldest set in our database that contains part 2391 is 42154 2022 Ford GT, released in 2023 in the Technic theme. It is still in use: the most recent set featuring it, 42232 Koenigsegg Sadair's Spear Megacar, dates from 2026.

Its peak year is 2025, with 21 sets containing it. The set with the most copies is 42232 Koenigsegg Sadair's Spear Megacar: 24 copies, against an average of 4.5 per set.

The part is closely tied to the Technic theme: 79% of the sets that contain it belong to it. With 68 sets, it ranks no. 1,402 of 2,731 parts in our database and no. 33 of 37 in the Technic Beams category.

Sets containing part 2391, by period

PeriodSets
202310
202417
202521
202620

Colours of part 2391

Its rarest colour, lime, appears only in set 42242 Mercedes-Benz Unimog U 5023 with Crane.

Colour (element ID)SetsPiecesExample sets
Black643501638107421754217142172
Dark Bluish Gray643239729116421714217642172
Red6426477926422324223142239
Light Bluish Gray6523570920458324583471869
White6471586312422114218242167
Green640816739421684215742149
Yellow65468032114222142209
Reddish Orange6483791264223242177
Lime65917951242242

Where to buy part 2391

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

Search part 2391 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 2391

Sets ranked by popularity that include at least one part 2391, in any colour.

Often found with part 2391

Parts that share the most sets with part 2391, based on set inventories.

More parts in the Technic Beams category

All parts in the Technic Beams category

Frequently asked questions

How many LEGO sets include part 2391?

Part 2391 (Technic Beam 1 x 7 Thick with Alternating Holes) appears in 68 sets listed on Setopedia, from 2023 to 2026, in any colour.

Which LEGO set contains the most copies of part 2391?

Set 42232 Koenigsegg Sadair's Spear Megacar, released in 2026, contains 24 copies, the highest count in our database. On average, a set containing part 2391 has 4.5.

Which colours does LEGO part 2391 come in?

9 colours are listed for part 2391. The most common is Black, found in 38 sets.

What is the rarest colour of part 2391?

According to our inventories, it is lime, found in only 1 set (42242 Mercedes-Benz Unimog U 5023 with Crane).

What is the element ID of part 2391 in black?

In black, part 2391 has element ID 6435016. Number 2391 is the mould number, the same for every colour.

Is LEGO part 2391 still used in recent sets?

Yes: it appears in sets released in 2026, such as 42232 Koenigsegg Sadair's Spear Megacar.

Where can I buy LEGO part 2391 individually?

Single parts 2391 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.