Information: Part Variants (proposed)

Part variants are differences in what is essentially the same part. These differences are typically mold variants, but can also be print variants. Variants can be quite minor or involve serious functional differences.

When a different version of a part in the catalog is discovered, then the existing catalog entry for that part is sometimes split into two or more entries. If there are any items for sale or items sold under the original catalog entry, then the original entry is not immediately removed from the catalog. Instead, the word Undetermined is usually added to the item title because it is not known which versions of the items sellers have for sale and it is typically marked for deletion after new catalog entries are created to account for the differences.

Splitting part variants involves significant work for sellers, buyers, administrators, and contributors. Therefore, part variant splits may not happen frequently. The incomplete lists below demonstrate the scale of the issue of part variants. All items on the lists below affect any assemblies in which they occur, although those assemblies are generally not included in the lists.

In addition to the items on the lists below, there are other known issues on which no catalog-wide action has been taken. First, when alternate parts appear in a set and are intended to have stickers applied the stickered part entry is sometimes distinguished by variant and sometimes not. Technically there should be two entries for every stickered part which has a distinguished variant in a set inventory. Second, similar or identical patterns which have both printed and molded versions are not currently distinguished by the catalog. Although not functionally different, these are technically different parts due to production differences and may have different Element IDs.


Known Part Variant Catalog Entries Needing Action:
This is a list of known catalog entries which require updates. Two or more variants of each part exist and each catalog entry on this list needs to be renumbered to show that multiple variants exist, be retitled, or be marked for deletion after a specific catalog entry is created to replace it. There is no specific time set for any parts on this list, but changes are planned for each entry.

Antenna 1 x 4 - This entry will be replaced by an entry for the rounded top version. A catalog entry already exists for the flat top version.

Arm Mechanical, Exo-Force / Bionicle - This entry may need to be retitled to indicate the version.

Bracket 1 x 2 - 1 x 4 - This entry will be replaced by an entry for the squared corners version. A catalog entry already exists for the rounded corners version.

Brick, Modified 1 x 1 with Clip Vertical - This entry will be replaced by an entry for the solid stud version. A catalog entry already exists for the hollow stud version.

Brick, Modified 1 x 2 with Cable Holding Cutout - This entry will be replaced by an entry for the square cutout version. Entry already exists for the oval cutout version.

Brick, Modified 1 x 2 with Vertical Clip - This entry will be replaced by an entry for the square clip version. Entry already exists for the open O clip version.

Brick, Modified 2 x 4 with Coupling, Male - This entry will be replaced by an entry for the low pin version. A catalog entry already exists for the high pin version.

Brick, Round Corner 2 x 2 Macaroni with Stud Notch - This entry may simply need to be renumbered.

Cloth Sail Rectangle with One Extended Corner - This entry was incorrectly combined. Two sails exist with two different PCCs.

Cone 1 x 1 without Top Groove - This entry may simply need to be renumbered.

Container, Box 2 x 2 x 2 - This entry will be replaced by an entry for the hollow stud version. A catalog entry already exists for the solid stud version.

Container, Cupboard 2 x 3 x 2 - This entry will be replaced by an entry for the hollow stud version. A catalog entry already exists for the solid stud version.

Door 1 x 3 x 2 Left - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 3 x 2 Right - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 3 x 3 Left - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 3 x 3 Right - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 3 x 4 Left - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 3 x 4 Right - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 5 x 4 Left - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Door 1 x 5 x 4 Right - This entry will be replaced by an entry which describes the handle version. Entry already exists for the thin handle version.

Hinge Cylinder 1 x 3 Locking with 1 Finger and 2 Fingers on Ends, without Hole - This entry may simply need to be renumbered.

Minifigure, Utensil Seat (Chair) 2 x 2 - This entry will be replaced with a version sans sprue mark. A catalog entry already exists for the sprue mark version.

Panel 1 x 2 x 1 - This entry will be replaced by an entry for the squared corners version. A catalog entry already exists for the rounded corners version.

Plate, Modified 1 x 2 with Clips Horizontal (thick open U clips) - This entry may simply need to be renumbered.

Plate, Modified 1 x 2 with Steam Engine Cylinder, Round Surfaces - This entry may simply need to be renumbered.

Plate, Modified 2 x 2 with Pin on Bottom - This entry will be replaced by an entry describing the underside. Entry already exists for the locking finger version.

Plate, Modified 8 x 8 with Grille - This entry will be replaced by an entry without a center hole. Entry already exists for the center hole version.

Plate, Round 2 x 2 with Axle Hole - This entry will be replaced by an entry for the standard hole version. A catalog entry already exists for the X-hole version.

Propeller 3 Blade 5.5 Diameter - This entry will be replaced by an entry for the large hole version. A catalog entry already exists for the small hole version.

Slope 45 2 x 1 - This entry will be replaced by an entry for the bottom tube version. A catalog entry already exists for the version sans bottom tube.

Technic, Axle and Pin Connector Toggle Joint Toothed - This entry will be replaced by an entry without slots. Two other catalog entries already exist.

Technic, Brick 1 x 2 with Axle Hole - This entry will be replaced by an entry describing the currently undefined version. Two other catalog entries already exist.

Technic, Brick Modified 2 x 2 with Ball and Axle Hole - This entry will be replaced by an entry sans ball holes. Entry exists for version with holes in ball.

Technic, Gear 16 Tooth with Clutch - This entry has a "B" version without an "A" version.

Tire 17 x 43 - This entry has a "B" version without an "A" version.

Tire 23mm D. x 7mm Offset Tread - Band Around Center of Tread - This entry has a "B" version without an "A" version.

Tread Small - Old (30 tread 'links') - This entry has an "A" version without a "B" version.

Tire Smooth Old Style - Small - This entry and its variants may need to be renumbered.

Train, Track 4.5V Crossing - This entry may simply need to be renumbered.

Train, Track 12V Conducting Rail Straight - This entry has a "C" version, but no "A" or "B" versions.

Train, Track 12V Conducting Rail Curved - This entry may simply need to be renumbered.

Train, Track Rail Curved Inside - This entry may simply need to be marked for deletion.

Train, Track Rail Curved Outside - This entry may simply need to be marked for deletion.

Wedge, Plate 8 x 4 Wing Left - This entry has an "A" version without a "B" version.

Wedge, Plate 8 x 4 Wing Right - This entry has an "A" version without a "B" version.

Wheel 43.2 x 28 Balloon Small - This entry has an "A" version without a "B" version.

Wheel Old with 4 Studs - This entry has "B," "C," and "D" versions without an "A" version.

Window 1 x 4 x 5 - This entry will be replaced by an entry for the hollow studs version. A catalog entry already exists for the solid studs version.


Known Part Variants Not Distinguished:
This is a list of known part variants which are not currently distinguished (meaning split into separate catalog entries) in the BrickLink catalog. These variants may or may not be distinguished at some point in the future.

Arm Piece Straight with 2 and 3 Fingers - This part has a variant with a finger slot and a variant without a finger slot.

Barb / Claw / Horn - Large - This part has a variant constructed of a different material.

Bicycle Frame - This part has a variant with a solid stud and a variant with a hollow stud.

Boat Hull Large Middle 8 x 16 x 2 1/3 with 8 or 9 Holes - This part has two variants as described in its title.

Boat Mast Rigging Long 27 x 5 - This part is reported to have two different length variants.

Boat Mast Rigging Short 16 x 5 - This part is reported to have two different length variants.

Bracket 1 x 2 - 2 x 2 - This part has a variant with three square prongs inside and a variant with only two.

Brick 1 x 1 Transparent with 'Frosted' Horizontal Line - This part has two variants with different frosted lines.

Brick 1 x 6 - This part has at least one additional variant in which the underside affects placement on offset.

Brick 1 x 1 x 5 - Blocked Open Stud / Hollow Stud - This part has three known stud variants and this catalog entry combines two of them.

Brick 1 x 2 x 5 - Blocked Open Studs / Hollow Studs - This part has three known variants and this catalog entry combines two of them.

Brick 2 x 4 without Cross Supports - This part has a variant with split tubes.

Brick 2 x 6 - This part has a variant with different tube shapes and a variant with side supports.

Brick 4 x 4 Corner without Bottom Tubes - This part has a variant with plain studs and a slotted variant.

Brick 10 x 20 without Bottom Tubes, with '+' Cross Support (early Baseplate) - This part has a variant with a different underside.

Brick, Modified 1 x 1 with Headlight - This part was previously distinguished for the version with a slot, but later the entry with a slot was marked for deletion.

Brick, Modified 1 x 2 with Pin - This part has a variant with rounded pin holes and a version with squared pin holes.

Brick, Modified 1 x 4 x 1 1/3 No Studs, Curved Top - This part has a variant which will allow a stud to fit into the center underneath and a variant which will not.

Brick, Modified 1 x 4 x 2 Center Stud Top - This part has a variant with two bars on the bottom and a variant with the bottom completely open.

Brick, Modified 2 x 4 No Studs, Curved Top - This part has a variant with a bottom groove.

Brick, Modified 2 x 4 with Wheels Holder Old and Trans-Clear Bottom - This part has numerous variants based on the bushes inside.

Brick, Modified 2 x 4 x 2 with Holes on Sides - This part has two variants with differing inner features.

Dinosaur Head Small - This part has a variant with a pin and a variant with a pin hole.

Dragon Wing - This part has left/right molds which are not officially distinguished by the LEGO Group.

Duplo, Train Track Curved (short) - This part has two variants which differ in significant functional ways.

Electric, Motor 9V Micromotor Pulley - This part has a variant of which inside is constructed of a different material.

Engine, Strakes, 2 x 2 Thin Top Plate - This part has two variants which differ in significant functional ways.

Flag 2 x 2 Square - This part has a variant with thick clips and a variant with thin clips.

Flag 2 x 2 Trapezoid - This part has at least two variants with differing clip shapes.

Glass for Window 1 x 4 x 5 - This part has a variant with a noticeable sprue mark and a variant without a sprue mark.

Hinge Brick 2 x 2 Locking with 2 Fingers Vertical and Axle Hole - This part has at least two variants: one with modern x style axle hole and one with + style axle hole.

Hinge Plate 2 x 4 - Complete Assembly - This part has at least two variants: one with differing holes and one with differing pivot colors.

Horse Saddle with Two Clips - This part has a variant with thick clips and a variant with thin clips.

Mini Doll, Head - There are three variants known. The older minidoll heads were an assembly of two parts. The newer minidoll heads are now a one-piece mold - and there are two variants of them.

Minifigure, Head (Plain) - Hollow Stud - This part has a variant with a shorter stud. The quantity and types of affected heads are unknown.

Minifigure, Headgear Helmet Round Bubble - This part has a variant with a shorter front lip and a variant with a longer front lip.

Minifigure, Plume Feathers with Pin - This part has a variant with a shorter flat pin and a variant with a longer rounded pin.

Minifigure, Utensil Goblet - This part has a variant with a band at the bottom.

PMinifigure, Weapon Lightsaber Hilt Straight - This part has at least two variants with or without bottom ring.

Plate, Modified 2 x 2 with Pin on Bottom - This part has two variants with differing underside ring sizes.

Plate, Modified 2 x 2 with Wheel Holder - TThis part has a variant with three square prongs inside and a variant with only two.

Plate, Round 4 x 4 with 2 x 2 Hole - Newer variant of this part was reinforced.

Rat - This part has two variants with differing tails.

Shark Body - This part has multiple variants which are primarily different on the undersides.

Shark Head - This part has at least two different mold versions.

Slope 45 2 x 1 with 2/3 Cutout - This part has a variant with a slightly different shape.

Slope, Curved 2 x 2 Lip, No Studs - This part has at least two variants with a thin back wall and a thick back wall.

Slope, Curved 2 x 4 x 2/3 No Studs with Bottom Tubes - Newer variant of this part has a reinforcement between the middle bottom stud and the back.

Slope, Inverted 33 3 x 1 - This part has a variant with a different slope angle.

Slope, Inverted 33 3 x 2 without Connections between Studs - This part has at least one (and possibly more) additional variations.

Slope, Inverted 45 2 x 1 - This part has a variant with ridges inside the tubes which limit the depth of insertion for fitting parts such as bars.

Slope, Inverted 45 2 x 2 - This part has a variant with ridges inside the tubes which limit the depth of insertion for fitting parts such as bars.

Slope, Inverted 45 3 x 1 Double - This part has a variant with ridges inside the tubes which limit the depth of insertion for fitting parts such as bars.

String Reel 2 x 4 x 2 Holder - This part has a variant with solid studs and a variant with hollow studs.

Support 2 x 4 x 5 Stanchion Inclined, 3mm Wide Posts - This part has a third variant in which the posts are 5mm wide and reinforced.

Technic, Brick 1 x 2 with Axle Hole - This part has four known variants. The most recent variant does not have a catalog entry.

Technic, Link Chain - This part has variants showed on additional image.

Tile, Modified 2 x 2 with Pin - This part has a variant with rounded pin holes and a version with squared pin holes.

Train Battery Box Car with Switch and Red Wheels - This part has a variant with three contact holes and a variant with only two.


Known Print Variants Not Distinguished:
This is a list of known print variants which are not currently distinguished (meaning split into separate catalog entries) in the BrickLink catalog. These variants may or may not be distinguished at some point in the future.

Aircraft Fuselage Curved Forward 6 x 8 Top with Arctic Explorer Logo Pattern (Sticker) - Set 60034, 60064 - This part possibly has different print sizes.

Baseplate 32 x 32 with Island and Center Lagoon Pattern - This part has three different versions, of which two are based on production method.

Baseplate 16 x 16 with Island on Blue Water Pattern - This part has two different water versions based on production method.

Belville, Clothes Skirt Short, Flower Pattern - This part has two different flower color versions.

Bionicle Mask Hau Nuva Poisoned - Green Forehead - This part has two different color variations based on production differences.

Brick 1 x 2 x 5 with Light Bluish Gray Bricks Pattern (Sticker) - Set 8813/8823 - This part has multiple print variants.

Brick 1 x 6 with Red 'Shell' Bold Pattern - This part has variants in which the print is surface or embossed.

Brick 1 x 6 with Red 'Shell' Rounded Pattern - This part has variants in which the print is surface or embossed.

Brick 1 x 8 without Bottom Tubes with Cross Side Supports with Red 'SLAGTER' and Red Pig Pattern - This part has different font variants.

Brick 2 x 4 x 3 with Bricks Pattern (Sticker) - Set 4852 - This part has different patterns based on sticker application.

Brick, Modified 2 x 2 Racer Driver Round Head (Undetermined Pattern) - This part has numerous pattern versions.

Brick, Modified 2 x 2 Racer Driver Square Head (Undetermined Pattern) - This part has numerous pattern versions.

Dino Body Pteranodon / Raptor with Black Top and Complementary Bottom Pattern - This part has two different versions.

Flag 6 x 4 with Blue and Red Dragon Pattern - This part has prints with red and blue squares in different locations.

Minifigure, Head Modified SpongeBob SquarePants with Super Hero Pattern - This part has prints with and without belt buckles.

Minifigure, Headgear Helmet SW Stormtrooper, AT-AT Driver Pattern - This part has prints with a number of different variations.

Panel 1 x 2 x 1 with Ogel Control Panel Pattern - This part has prints in copper or silver depending on the part color.

Panel 3 x 3 x 6 Corner Wall with Light Bluish Gray Bricks Pattern (Sticker) - Set 7094 - This part needs additional catalog entries created.

Seal, Friends with Black Nose and Medium Azure Eyes Pattern - This part has prints with different eyes.

Slope, Curved 6 x 1 with Repeating Hexagonal Scale Pattern - This part has prints in multiple different colors.

Sticker for Set 3545 - (45870/4192778) - This part has print color differences for the helmet stripe.

Tile, Round 2 x 2 with Orange Circle with Blotchy Gray Edge Pattern (Sticker) - Set 6208 - This part needs additional catalog entries created.

Torso SW Armor Clone Trooper Pattern - This part has prints in dark gray and dark bluish gray.

Torso SW Darth Vader Pattern - This part has prints in dark gray and dark bluish gray.

Torso SW Rebel A-wing Pilot Pattern - This part has prints in dark gray and dark bluish gray.

Wampa Body with Face Pattern - This part has prints with different nose colors.

Known Figure Variants Not Distinguished and Other Oddities:
This is a list of known figure oddities and variants which are not currently distinguished (meaning split into separate catalog entries) in the BrickLink catalog. This list does not exactly match the purpose of the lists above, but is included for the sake of keeping a record. These figure entries may or may not be changed in the future.

Battle Droid Pilot with Blue Torso with Tan Insignia and One Straight Arm - This figure is undetermined because there are two different arm attachments.

Battle Droid Security with Straight Arm and Dark Red Torso - This figure is undetermined because there are two different arm attachments.

Battle Droid with One Straight Arm - This figure is undetermined because there are two different arm attachments.

Bill - This figure is from the LEGOLAND Idea Book 6000 and was added to the catalog for historical reasons.

Classic - Yellow Castle Knight Red - with Vest Stickers - This figure is undetermined because there are two different sticker color possibilities.

Classic - Yellow Castle Knight Red Cavalry - with Vest Stickers - This figure is undetermined because there are two different sticker color possibilities.

Mary - This figure is from the LEGOLAND Idea Book 6000 and was added to the catalog for historical reasons.