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LEGO part 3648a: Technic Gear 24 Tooth [Old Style - Three axle holes]

Technic Gears1 colours29 sets

LEGO part LEGO part 3648a: Technic Gear 24 Tooth [Old Style - Three axle holes]

Specifications

Reference3648a
CategoryTechnic Gears
MaterialABS plastic
Colours1
Sets29
Listed pieces72
First appearance1995
Latest appearance1998
Most common colourLight Gray
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3648a, Technic Gear 24 Tooth [Old Style - Three axle holes], belongs to the Technic Gears category. It exists in 1 colours and appears in 29 sets of our database, from 1995 to 1998, for a total of 72 listed pieces. Its most common colour is Light Gray.

Number 3648a is the LEGO mould number, the one embossed under the part or inside the studs. It is the reference used by Rebrickable, BrickLink and the Pick a Brick service to name the shape regardless of colour: each shape and colour combination then gets its own element number.

Part 3648a through the years

The oldest set in our database that contains part 3648a is 8485 Control Centre / Control II, released in 1995 in the Technic theme. No set in our database uses it after 1998, the year of 8417 Mag Wheel Master. To get it today, look for older sets or buy it second-hand.

Its peak year is 1998, with 10 sets containing it. The set with the most copies is 9609 Technology Resource Set: 16 copies, against an average of 2.5 per set.

The part is closely tied to the Technic theme: 72% of the sets that contain it belong to it. With 29 sets, it ranks no. 2,205 of 2,731 parts in our database and no. 38 of 46 in the Technic Gears category.

Sets containing part 3648a, by period

PeriodSets
19959
19965
19975
199810

Colours of part 3648a

Part 3648a exists in a single colour: light gray.

Colour (element ID)SetsPiecesExample sets
Light Gray2972848084858460

Where to buy part 3648a

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

Frequently asked questions

How many LEGO sets include part 3648a?

Part 3648a (Technic Gear 24 Tooth [Old Style - Three axle holes]) appears in 29 sets listed on Setopedia, from 1995 to 1998, in any colour.

Which LEGO set contains the most copies of part 3648a?

Set 9609 Technology Resource Set, released in 1995, contains 16 copies, the highest count in our database. On average, a set containing part 3648a has 2.5.

Which colours does LEGO part 3648a come in?

1 colours are listed for part 3648a. The most common is Light Gray, found in 29 sets.

Is LEGO part 3648a still used in recent sets?

Not in our database: its last set dates from 1998 (8417 Mag Wheel Master). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 3648a individually?

Single parts 3648a 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.

How do I identify a LEGO part number?

The mould number is embossed under the part or inside the studs. For the Technic Gear 24 Tooth [Old Style - Three axle holes], it is number 3648a, shared by all its colours.