The Brick Architect

Most Common LEGO Parts (All Years)

This page shows the most common LEGO parts based on the assumption that you bought one of every set ever released! This is a very good way to approximate the most common parts across The LEGO Group's 70-year history producing interlocking plastic bricks.

Parts sorted by the overall ranking for each part. This is a weighted scoring system that takes into account the number of pieces, the number of sets, and the number of unique colors.

ShowCurrentAll Years

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

3751 to 4000

Part Name(Part Number)

Overall
Rank

Equipment Medical Clipboard98393b

2012-202615 years

Equipment Medical Otoscope98393c

2012-202615 years

Equipment Medical Thermometer98393d

2012-202615 years

Equipment Medical Spoon98393e

2012-202615 years

Equipment Medical Feeding Bottle98393f

2012-202615 years

Equipment Medical Ice Pack98393g

2012-202615 years

Headwear Accessory Hat with Small Pin (Nurse)98393h

2012-202615 years

Equipment Medical Pen98393j

2012-202615 years

Duplo Dump Truck Bed 4 x 4 x 2 (Tipper)14094

2013-202614 years

Technic Turntable Large Type 1, 56 Tooth [Complete Assembly]2856c01

1990-200314 years

Primo Vehicle Wagon without Tow Hitches31008

1995-20028 years

Duplo Tricycle with 4 studs31189

1998-20069 years

Container Cylindrical 3 x 8 x 5 with Pin Holes15361

2014-20163 years

Minifig Hipwear Ruffled Ballerina Tutu [Plain]24087

Scala, Building, Support Tall, Type 1, 28.5 Studs Long [Complete Assembly]33232c01

1997-20015 years

Windscreen Bohrok 4 x 5 x 7 [Plain]41671

2002-20109 years

Octopus, Small49595g

2019-20257 years

Clam Shell, Medium49595f

2019-20257 years

Launcher, Large Figure Weapon Cannon, Midak Skyblaster with Black Housing [Complete Assembly]62233

2008-20103 years

Duplo Staircase, Curved with Drawer Slots6511

1995-200915 years

Duplo Doll Chair31313

2001-20088 years

Duplo Shower Faucet15327

2013-202614 years

Duplo Plant Vine 13L (Duplo Length) without Studs6410

1995-200915 years

Duplo Chair with 4 Studs, Curved Back and Feet6477

1994-201219 years

Rope Bridge2549

1989-200921 years

Baseplate Raised 16 x 16 x 2 1/3 Ramp2642

1991-200313 years

Duplo Train Chassis with Yellow Drive Rod and Red Wheels4580c01

1983-201230 years

Tile Remover Key, Heart [DOTS]69871

2021-20233 years

4L Fin w/ Handle7511

2025-20262 years

Glass for 3×2 Frame7757

2025-20262 years

Animal Body Part, Dinosaur, Dilophosaurus / Gallimimus Lower Jaw with Teeth [Plain]49418

2020-20256 years

14 Tooth XL Sprocket42529

2019-20257 years

Launcher, Weapon Gun / Blaster / Shooter / Fire Nozzle Mini with Towball Socket23922

2016-20216 years

Storage Bin, Dacta, Large (new style)54189

2006-20149 years

Flexible Hose 8.5L with Tabless Ends Black (Ends different color than Tube)73590c01b

1987-201226 years

Wedge Plate 9 x 10 Boat Bow2621

1991-200616 years

Belville / Scala, Equipment Baby Potty33050

1997-200812 years

Door Frame 1 x 8 x 6 with Moulded Stone Print and Clips40242

2001-20077 years

Duplo Train Locomotive Cabin Roof 2 x 4 Studs51546

2005-20128 years

3×3 Cube w/ Ring (Dots)69182

2021-20222 years

Plate Special 2 x 4 with Train Coupler Open with Magnet Short Cylinder Red737ac01

1968-197710 years

Minidoll, Ball Gown, Octagonal80336

2023-20242 years

Storage Case Divider, Build-N-Store Chest6853

1990-19967 years

4×6, Plate w/ Ø4 Rounded Ends3766

2024-20263 years

Large Figure Armor Hockey Chest Protector44791

6×8×2 Windscreen, Curved5274

2024-20252 years

Weapon Gun / Blaster Small DC-17 (Star Wars Accessory)61190f

2008-20114 years

Wheel Train for 12V Electric Motor867

1980-19856 years

Motor, 4.5V Type 2 for 2-Prong Connectors with Middle Pin6216b

1982-199211 years

Wedge Sloped Inverted 3 x 3 x 2 Facet2464

1992-19976 years

Power Burst, Curved w/ Bar, 3-Handles5500

2024-20263 years

Technic Axle Nut4698

1984-19907 years

Duplo Train Track Switcher with Red Switch51560

2005-202521 years

5×4×3 Panel, Bent w/ Angle, Right80271

2022-20254 years

Znap Grid 9 x 7, 15 Holes32213

1998-19992 years

Large Figure Head Connector Block Eye/Brain Stalk - Short57536

2007-20093 years

Large Figure Armor with Spikes [Flexible]92234

2011-20155 years

Lighting Bolt, Double59233

2019-20246 years

7×7 Dome, Flat w/ 2-Pin Holes1974

2023-20253 years

Hair Long with Curls at Ends18842

Hair Pigtails High, Long Bangs, Hole on Top, Hair Ties [Plain]20596

2022-20243 years

Helmet, Conquistador30048

1996-19972 years

Clikits Part Separator with Heart, Flower and Star on Handle46391b

2003-20042 years

Belville / Scala, Equipment, Tube Toothpaste6933a

1997-20048 years

Belville / Scala, Equipment, Bottle Pump6933b

1997-20048 years

Belville / Scala, Equipment, Bottle Simple6933c

1997-20048 years

Hair Tail High, Curly69857

2022-20254 years

Battery Cover, Train Car Roof 6 x 14699

1972-198716 years

Hair Long Straight with Bangs - Hard Plastic75867

2024-20263 years

Plate Special 4 x 8 with Helicopter Rotor Holder967

1970-19756 years

Battery Box, 9V 4 x 14 x 4 with Dark Gray Base [Complete Assembly]2847c01

1990-200314 years

Large Figure Weapon Blade, Angled92221

2011-20133 years

Weapon Axe Head with Twin-Blade11096

2013-20164 years

Duplo Door / Window Frame 4 x 4 x 3 with Thin Top18857

2015-202511 years

Wing Plate Bi-level 8 x 4 and 2 x 3 1/3 Down30119

1997-19982 years

Brick Special 12 x 12 with 3 Pin Holes on Each Side and Axle Holes in Corners52040

2005-20084 years

Duplo Technic Brick 2 x 4 with 3 Holes6517

1995-201521 years

20 Tooth, Dbl. Clutch81346

2022-20254 years

3×4×8 Technic Large Motor (w/ Absolute Position) 22169

2019-20257 years

Clikits Icon, Shell 2 x 2 with Pin51675

Animal Body Part, Dinosaur / Whale Flipper with Pin40386

2001-20066 years

Angled Connector, 60° / 120°7329

2025-20262 years

Weapon Sword Double Blade Serrated with Bar Holder (Chi Sword)13549

2013-20153 years

Tyre 68.8 x 40 Balloon Large2995

1994-200411 years

Duplo Sword, Thick51714

2004-20085 years

Road Sign Round on Pole [Fabuland]2038

1987-200418 years

4×10×1⅔ Wedge Curve, Double Inverted w/ 4-Pin Holes65186

2020-20245 years

Scala, Building, Wall, Vertical Grooved 12 x 2 x 86860c01

1997-20004 years

Tyre 24 x 9.95033

2024-20263 years

Hinge Plate 1 x 6 with 2 and 3 Fingers On Sides4507

1985-200218 years

Windscreen 4 x 6 x 4 Cab with Hinge and 1 x 4 Bottom Cutout45406

2003-201513 years

Horn / Car Air Horn71182

1996-20049 years

Brick Special, Train Front Sloping Base Wedged with 4 Studs on Front and 2 x 4 Cutout87619

2010-20156 years

Weapon Gun / Blaster with Hollow Studs on Sides and Inside Axle Holder24144

2016-20183 years

Duplo Propeller / Windmill 8 Blade Fan 6 x 63965

1979-199416 years

Duplo Winch Drum, Yellow Hook Short with Cross Bar, String4653c02

1984-200825 years

10×4×13 Panel, Curved w/ 2-Bars, 4-Studs65783

2020-20245 years

Fairing, Motorcycle, Dirt Bike with 1 x 2 Studs75522

2021-20233 years

1×1×1⅔ Brick, Studs 3-Sides7729

2025-20262 years

Clikits Icon, Flower 2 x 2 Large, 10 Petals with Pin [Frosted] Trans-Neon Orange Center Cabochon45455c01

2003-20042 years

Duplo Trap Door Grate 4 x 451706

2004-20118 years

Vehicle Base, Train 6 x 24 with Two 2 x 2 Openings and 3 Round Holes Each End, Reinforced on Bottom Side92088

2013-202311 years

Packaging, Canister Lid and Base, Bionicle61778

Fabuland, Building, 2 x 6 x 7 with Window, Rectangular Yellow3980c02

1982-200019 years

Light Prism Brick, Train, 1 x 4 Holder2928

1991-200616 years

6×6×1⅓ Windscreen, Curved3383

2023-20264 years

40L Pneumatic Hose5102c40

1989-202133 years

10×16 Plate w/ Studs Edges, Bar 1-Edge (Book Cover)69934

2021-20233 years

1×3 Leaf, Smooth7905

Duplo Building Staircase2212

1989-200820 years

Duplo Plant Cactus31164

1998-201013 years

Motor Pullback 2 x 6 x 1 2/3 Type 2 [Fast] Black Base, White Axle42289

2002-20098 years

Hose, Pneumatic 4mm D. 19L / 15.2cm5102c19

1993-201523 years

Windscreen 2 x 12 x 46267

1996-202227 years

Minifig Neckwear Armor Double Shoulder Pad with Scabbard for 2 Katanas65183

Antenna (RC Receiver) with Yellow Tip71845

1998-20069 years

Large Figure Accessory, Hockey Puck [No Axlehole]44848

2003-20042 years

Street Sweeper Brush Axle 1 x 82497

1988-201225 years

Wheel 70 x 28 mm Futuristic32077

1998-20047 years

Minitalia Window 1 x 6 x 3 Panorama with 12 Panes604mi

1970-19778 years

Duplo Plate Round 4 x 4 [aka Table]15516

2014-20218 years

Technic Rack Winder [Complete Assembly]2426c01

1987-19937 years

Rock 2 x 2 Crystal 3 Point30213

1998-19992 years

Duplo Lamp Post42083

2002-20065 years

Duplo Door 1 x 4 x 46467

1994-200512 years

Modulex Brick 1 x 2 with M on Stud1121M

Ball, Winged (Quidditch Snitch)37704

2018-20258 years

Scala, Table 7 x 7 x 1 1/36965

1997-19982 years

Wheel 68mm Znap Propeller (9 x 2)32220

1998-19992 years

Clikits Icon Accent, Star 3 1/4 x 3 1/4 with Textured Surface46580c

Brick Arch 2 x 6 x 5 Ornamented2145

1988-200013 years

Packaging, Case, Bottom, Throwbot / Slizer 'Flying'32194

1999-20002 years

Scala, Headwear, Hat, Baby33066

1997-20004 years

Scala, Container / Bucket / Basket Handle33082

1998-20014 years

Duplo Crane Arm (Full Assembly)55436

2001-201212 years

Technic Connector 3 x 1 x 4 with Two Pins and Click Hinge30624

2001-20033 years

Duplo Toolo Rear Spoiler31239c01

2000-20089 years

Technic 4 Ball Joint Steering Arm With 3 Pin Base [Complete Assembly]32495c01

2001-201111 years

Hair Long Parted in Front34316

2020-20234 years

Large Figure Weapon 5 x 5 Shield with Wrench Toothed44936

2003-20075 years

Fabuland, Slide4876

1985-200218 years

8L Flex Cable, Wavy6955

Clikits Icon, Flower 2 x 2 Large, 5 Petals with Hole53658

Train Base 6 x 12 Type 1 with Wheels and Magnets [Complete Assembly]270c02

1972-19787 years

Technic Cylinder 4 x 4 x 1 2/3 with Axle Holes2745

1992-20009 years

10×4×⅔ Wedge w/ Cutout (Mudguard)3166

2023-20253 years

Arm, with Pin, Light Nougat Hand67906c04

2025-20262 years

Windscreen 6 x 13 x 213252

2013-202513 years

Large Figure Helmet, Hockey44790

2003-20064 years

Clikits Frame, Square with 5 x 5 Holes Arrangement45495

2003-20053 years

6×8 Fuselage, Inverted w/ 2-Pin Holes5123

2024-20263 years

Duplo Roof Spire52025

2005-20084 years

24L Ribbed Hose78c24

2001-20077 years

5×4×3 Panel, Bent w/ Angle, Left80272

2022-20254 years

Hair Long, Parted in Front and Swept Back Over Shoulders28321

Technic Digger Bucket 8 x 102951

1993-201523 years

Motor, Train, 4.5V, 4 x 12 x 3 1/3 Type 1564c01

1969-19757 years

Brick Round 7 x 7 x 4 Dome Top57587

2007-20104 years

4×4 Cake Frosting65702

2020-20256 years

Bar 4.5L with Stop Ends71184

1996-20049 years

Duplo Animal Chicken / Hen / Rooster, Tail, Lobe Comb, on Green Base75020

1991-200515 years

Glass for Windscreen 2 x 6 x 213756

2013-202614 years

Hair, Braided in Knot1988

Belville / Scala, Equipment, Hair Dryer33025

1997-20048 years

Duplo Teapot [Plain]35735

2019-20235 years

Plant, Prickly Bush 2 x 2 x 3 Extension with 2 x 2 center6065

1995-20017 years

Equipment Wand Sprue [Complete Set of 2]36752

2018-20247 years

23L Flex Tube75c23

1999-202224 years

Door for Slotted Bricksbrickslot0001

1949-19502 years

Vehicle Base, Trailer 6 x 12 x 1 1/330263

1999-200911 years

Duplo Plough31032

1996-200712 years

Pneumatic Pump 1 x 5.574982

1992-201423 years

Duplo Car Base 2 x 4 with Fixed Axles - 27.5 Silver Wheels and Black Tires12592c01

2011-202010 years

Duplo Cabinet Drawer 4 x 4 with Round Handle31323

2001-20088 years

Baseplate Raised 32 x 32 Craters without Crater Studs3947a

1979-198810 years

Technic Pin with Friction with Click Rotation Ring41680

2002-20032 years

Plate 1 x 2 with Electric Contacts4755

1986-199510 years

Equipment Barbed Wire Coil62700

2008-201912 years

Dish 2 x 2 with Angled Bar6919

1998-20047 years

14 Tooth, Thick Bevel69762

2022-20265 years

Hair Beehive Style with Sideways Fringe15503

2020-20223 years

Pod, Round, Faceted 4 x 4 x 1 2/3 (Dragon Egg Bottom)24130

2016-20249 years

Cockpit 10 x 10 x 4 Octagonal2618

1995-200915 years

Tipper Bed 12 x 8 x 3 1/330300

1999-201012 years

Door 2 x 5 x 5 Swivel, Bracket Base40249

1997-20059 years

Boat Hull 51 x 12 x 6 with Side Bulges62791

2008-202114 years

Mech Leg, Right, with Black Pin70943c01

2021-20244 years

Mech Leg, Left, with Black Pin70946c01

2021-20244 years

Electric Connector, 1 Way Male Squared [Complete Assembly]765c01

1980-19812 years

Large Figure Weapon, Lightsaber Blade 16L with Axle Hole21987

2015-20184 years

Minitalia Window 1 x 2 x 3 Shutter3856mi

1970-19778 years

Duplo Loading Pallet 4 x 4 Indented Side47415

2004-20096 years

Plate 2 x 8 with Electric Contacts4758

1986-200217 years

Duplo Saucepan, Round Bottom, Smooth Handle4905

1986-19927 years

Duplo Broadaxe51996

2004-20085 years

Creature, Horse / Thestral, Skeletal / Skeleton59228

2007-20126 years

Scala, Chair, Highback Dining6925

1997-20004 years

Windscreen 6 x 10 x 4 Curved18729

2015-20239 years

Clikits Ring, Wide Band with Hole in Top51686

2005-20062 years

Scala, Container / Box 7 x 7 x 3 with 3 sides6966

1997-19982 years

Suspension w/ Fender, Axle Hole (Formula 1)6813

2025-20262 years

Fabuland, Building, 2 x 6 x 7 with Window, Round Type 1 Red3979c01

1979-19879 years

Duplo Building Roof Spire Half 4.5 x 2 x 498238

2012-202514 years

Minifig Neckwear Armour Breastplate with Shoulder Protection Layered30121

Minitalia Slope 33° 2 x 4 Double with Bottom X Supports3299mia

1970-19734 years

Duplo Boat Helm4658

1984-201431 years

Plate Special 2 x 4 with Train Coupler Open with Magnet Short Cylinder Blue737ac02

1968-197710 years

Duplo Dinosaur Tyrannosaurus Rex Baby with Yellow Spots Print75940

1997-20015 years

Vehicle Base 4 x 14 for Steering Gear804

1967-19737 years

Animal / Creature Body Part, Dinosaur Body Quarter with Pin Holes40373

2002-20054 years

Animal / Creature Body Part, Dinosaur Body Quarter with Pins [Plain]40374

2002-20054 years

Large Figure Limb Cover, Armor, Leg / Shin Guard Type 150629

Large Figure Foot, Small with Axle Connector87791

2010-20112 years

Gearwheel 8 Tooth with Pin Holes and Flywheel Recess (Ninjago) [Short Shaft]18590

2015-20184 years

4×3 Window w/ Rounded Top, 4-Panes5260

2024-20252 years

2×2×1⅔ w/ Worm Gear Hole73764

2023-20253 years

Pneumatic Airtank75974

1997-201418 years

Pod, Elongated, Half, Alien 2 x 4 x 411598

2013-20175 years

Light Brick 2 x 2 Type 2 - 4.5V [Complete]265bc01

1977-199216 years

Duplo Train Compartment/Container Frame31301

2000-20034 years

Duplo Egg Base31367

2000-20045 years

Technic Pin Joiner Round with Slot, Bar and Pivot41732

2002-20054 years

Technic Panel Fairing #24 Small Short, Small Hole, Side B47712

2004-20074 years

Technic Panel Fairing #25 Small Short, Small Hole, Side A47713

2004-20074 years

27L Pneumatic Hose5102c27

2002-202120 years

Large Figure Weapon Sword, Lava Chamber Gate Sword54272

2006-20105 years

Receiver Unit, IR, Power Functions58123a

2007-201913 years

Slope 45° 2 x 2 Double Convex / Double Concave962

1957-196913 years

Duplo Skirt [Plain]99771

2012-20154 years

Technic Flex Cable 5Lflex08c05

1991-200010 years

Clikits Icon Accent, Star 3 1/4 x 3 1/451503

2003-20053 years

Windscreen 8 x 8 x 3 Dome with Dual 2 Fingers - 7 Teeth95198

2011-202010 years

Weapon Batman Batarang with Bars37720c

2018-20192 years

6×6 15-Tooth ¼ Gear Ring78442

2021-20266 years

14L Jagged Blade w/ Axle98856

2022-20243 years

Baseplate 24 x 32 with Rounded Corners10a

1971-19777 years

Ladder 16 x 3.5 with Side Supports11299

2013-202311 years

Magnet Holder Plate 2 x 2 Bottom30159

1998-20025 years

Spoiler 3 x 4 x 630626

2001-20055 years

30mm D. × 20mm Wheel w/ Technic Axle Hole, 5-Angled Spokes42716

2019-20257 years

65° 2×6×2 Windscreen, 4-Panes6567

1994-201926 years

Wheel Cover 10 Spoke (2 Spokes each parallel) - for Wheel 1897624308a

2016-20205 years

Animal / Creature Body Part, Dinosaur / Dragon, Foot40393

2001-20066 years

Duplo Building Wall 1 x 8 x 8 with Door Opening - Castle51695

2004-20118 years

Duplo Building Wall 1 x 8 x 8 with Window Opening - Castle51697

2004-20118 years

Coaster Track, Curved 90° Ramp80566

2022-20243 years

Tyre 107 x 44 Tractor23798

2016-20238 years

Duplo Train Crossing Gate / Barrier, with Small Handle and White Stripes6406b

2000-201213 years

Duplo Technic Crank Handle6526

1995-201521 years

Large Figure Weapon Accessory / Engine, Jet Pack92215

2011-20122 years

Custom images are not available for 92 parts on this page.

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

3751 to 4000

Subscribe for updates!

Join thousands of LEGO fans by subscribing to our monthly newsletter. It contains updates to the LEGO Parts Guide, exclusive subscriber content, and a roundup of the best LEGO news from around the web.

The LEGO Parts Guide is a work in progress

This is a handcrafted experience to help you browse LEGO parts in a simpler way. If you have ideas to make it better or encounter any issues, please send me an email at tom@tomalphin.com — Thanks!

Check out the About the LEGO Parts Guide page to learn more about why I created this guide. It also includes a detailed version history with images of early prototypes of this guide.

Support the LEGO Parts Guide

The LEGO Parts Guide is an extension of my LEGO Brick Labels project. If you want to support this project and gain access to behind-the-scenes updates, consider supporting the project at patreon.com.

The LEGO Parts Guide © 2026 Tom Alphin / Brick Architect.

Brick Architect earns a commission from qualifying purchases at partner sites such as LEGO.com and Amazon. (For a complete list of affiliate programs, visit About Brick Architect.)

LEGO® is a trademark of the LEGO Group which does not sponsor, authorize or endorse this site. As a member of the Recognized LEGO® Fan Media program, we abide by the LEGO Fair Play and Novelty policies by not sharing leaked photos of unreleased sets.

This guide uses external data from Rebrickable, BrickLink, Brickset, and LDraw.