Setobrick

LEGO part 42003: Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes

Technic Connectors17 colours714 sets

LEGO part LEGO part 42003: Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes

Specifications

Reference42003
CategoryTechnic Connectors
MaterialABS plastic
Colours17
Sets714
Listed pieces4,793
First appearance2002
Latest appearance2026
Element (Black)6273708 · 4200326
Most common colourBlack
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 42003, Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes, belongs to the Technic Connectors category. It exists in 17 colours and appears in 714 sets of our database, from 2002 to 2026, for a total of 4,793 listed pieces. Its most common colour is Black.

Number 42003 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 6273708.

Part 42003 through the years

The oldest set in our database that contains part 42003 is 8557 Exo-Toa, released in 2002 in the Bionicle 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 2024, with 44 sets containing it. The set with the most copies is 42100 Liebherr R 9800 Excavator: 71 copies, against an average of 6.7 per set.

It is spread across several themes, led by Technic (37%), Star Wars (11%) and Bionicle (8%). With 714 sets, it ranks no. 241 of 2,731 parts in our database and no. 9 of 74 in the Technic Connectors category.

Sets containing part 42003, by period

PeriodSets
2002-2009167
2010-2019287
2020-2026260

Colours of part 42003

2 colours appear in only one set: reddish orange (42177 Mercedes-Benz G 500 PROFESSIONAL Line) and bright light orange (8755 Keetongu).

Colour (element ID)SetsPiecesExample sets
Black6273708 · 42003262761,612421434213842123
Dark Bluish Gray6273715 · 4210857192982753374217542156
Light Bluish Gray6273724 · 42117791741,000421284217575288
Red6273712 · 417544295509421434214542130
Yellow6273711 · 420032470346421434214675252
White6330960 · 62541092467421756033642130
Lime6273728 · 62118761881421384215642115
Orange6330986 · 6259824735421284210542088
Light Gray4175440725747174696620
Dark Turquoise6295182520421177179951515
Dark Azure6273734 · 6216110427420834207742217
Pearl Light Gray4194025415725544818757
Bright Green6097398333420397130071305
Dark Blue6166864 · 60590152164199970351
Dark Gray41754392774718596
Reddish Orange648380211542177
Bright Light Orange4248901138755

Where to buy part 42003

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

Search part 42003 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 42003

Sets ranked by popularity that include at least one part 42003, in any colour.

Often found with part 42003

Parts that share the most sets with part 42003, based on set inventories.

More parts in the Technic Connectors category

All parts in the Technic Connectors category

Frequently asked questions

How many LEGO sets include part 42003?

Part 42003 (Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes) appears in 714 sets listed on Setopedia, from 2002 to 2026, in any colour.

Which LEGO set contains the most copies of part 42003?

Set 42100 Liebherr R 9800 Excavator, released in 2019, contains 71 copies, the highest count in our database. On average, a set containing part 42003 has 6.7.

Which colours does LEGO part 42003 come in?

17 colours are listed for part 42003. The most common is Black, found in 276 sets.

What is the rarest colour of part 42003?

According to our inventories, it is bright light orange, found in only 1 set (8755 Keetongu).

What is the element ID of part 42003 in black?

In black, part 42003 has element ID 6273708 or 4200326. Number 42003 is the mould number, the same for every colour.

Is LEGO part 42003 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 42003 individually?

Single parts 42003 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.