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LEGO part 3647: Technic Gear 8 Tooth

Technic Gears11 colours267 sets

LEGO part LEGO part 3647: Technic Gear 8 Tooth

Specifications

Reference3647
CategoryTechnic Gears
MaterialABS plastic
Colours11
Sets267
Listed pieces852
First appearance1995
Latest appearance2013
Element (Light Gray)364702
Most common colourLight Gray
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3647, Technic Gear 8 Tooth, belongs to the Technic Gears category. It exists in 11 colours and appears in 267 sets of our database, from 1995 to 2013, for a total of 852 listed pieces. Its most common colour is Light Gray.

Number 3647 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in light gray, it is 364702.

Part 3647 through the years

The oldest set in our database that contains part 3647 is 8485 Control Centre / Control II, released in 1995 in the Technic theme. No set in our database uses it after 2013, the year of 20215 Invention Designer (Kits 10 - 12). To get it today, look for older sets or buy it second-hand.

Its peak year is 1999, with 23 sets containing it. The set with the most copies is 970620 8 Tooth Gears (Pack of 100) 'Spur' Gears: 100 copies, against an average of 3.2 per set.

It is spread across several themes, led by Technic (46%), Educational and Dacta (13%) and Star Wars (5%). With 267 sets, it ranks no. 592 of 2,731 parts in our database and no. 5 of 46 in the Technic Gears category.

Sets containing part 3647, by period

PeriodSets
1995-199975
2000-2009144
2010-201348

Colours of part 3647

5 colours appear in only one set: purple (8507 Electro / Energy Slizer), dark gray (10023 Master Builder Set), rust (8500 Torch / Fire Slizer), yellow (8502 Turbo / City Slizer) and tan (8506 Granite / Rock Slizer).

Colour (element ID)SetsPiecesExample sets
Light Gray364702120510848084485571
Dark Bluish Gray4514559771948043101888070
Light Bluish Gray4211432 · 364719456128766282857905
Black412018146843638098514
White414043635978682798511
Blue41201032285038501
Purple4120122128507
Dark Gray41558211210023
Rust118500
Yellow4120104118502
Tan4120154118506

Where to buy part 3647

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

Search part 3647 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 3647

Sets ranked by popularity that include at least one part 3647, in any colour.

Related parts

Often found with part 3647

Parts that share the most sets with part 3647, based on set inventories.

More parts in the Technic Gears category

All parts in the Technic Gears category

Frequently asked questions

How many LEGO sets include part 3647?

Part 3647 (Technic Gear 8 Tooth) appears in 267 sets listed on Setopedia, from 1995 to 2013, in any colour.

Which LEGO set contains the most copies of part 3647?

Set 970620 8 Tooth Gears (Pack of 100) 'Spur' Gears, released in 2002, contains 100 copies, the highest count in our database. On average, a set containing part 3647 has 3.2.

Which colours does LEGO part 3647 come in?

11 colours are listed for part 3647. The most common is Light Gray, found in 120 sets.

What is the rarest colour of part 3647?

According to our inventories, it is rust, found in only 1 set (8500 Torch / Fire Slizer).

What is the element ID of part 3647 in light gray?

In light gray, part 3647 has element ID 364702. Number 3647 is the mould number, the same for every colour.

Is LEGO part 3647 still used in recent sets?

Not in our database: its last set dates from 2013 (20215 Invention Designer (Kits 10 - 12)). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 3647 individually?

Single parts 3647 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.