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 21 22

4501 to 4750

Part Name(Part Number)

Overall
Rank

Duplo Door 1 x 3 1/2 x 5 1/3 with Six Panes2208

1989-19957 years

Motor Cover, 9V Micromotor 2 x 2 Base2985

1993-200210 years

Technic Rectangular Gearbox Half32167

1999-20013 years

Fabuland, Window 2 x 4 x 5 with Square Top4608

1984-19885 years

Large Figure Torso Cover, Armour, Toa Hordika50926

2005-20073 years

Launcher, Large Figure Weapon Cannon, Cordak Blaster57523c01

Large Figure Mask / Visor with Axle Hole57702

2007-20082 years

Belville, Headwear, Horse Riding Helmet6189

1994-200815 years

Vehicle Base, Motorcycle Chassis with Light Bluish Gray Flywheel69869c01

2021-20222 years

HO Scale Accessory Door for Garage 4 x 8 x 3722

1961-19699 years

1×4×2 Panel8012

#40 3×11 Inv. Fairing, A5741

2024-20263 years

#41 3×11 Inv. Fairing, B5742

2024-20263 years

Duplo Plate 4 x 4 with 16 Studs and Reinforced Hinge65085

2020-20267 years

Weapon Hammer Head11106

2013-20153 years

3×4×⅔ Tile, Mickey Mouse74169

2021-20233 years

Large Figure Skeletal, Connector, Perpendicular, 3L with 2 Pins, 3 Ball Joints on Axle90634

2011-20155 years

Motor, Large, Power Functions with Dark Bluish Gray Bottom99499

2012-20198 years

Wall Panel 1 x 4 x 6 Curved Vertically34732

2017-20226 years

Duplo Train Track Switcher with 2 x 2 Studs6379c01

1993-200311 years

Container Snap (Vidiyo)65146

Tilt Steering Axle w/ 2-Wheel Pins69964

2021-20244 years

24mm D. × 7mm Wheel w/ Tire, Technic Pin Hole74214

2021-20222 years

1×1×⅔ Curved Double w/ Rounded End7818

Scala, Building, Support L 18 Studs Long [Complete Assembly]33037c01

1997-20015 years

12×24 Plate w/ Square and Circle Cutouts (LEGO Dimensions)18601

2015-20173 years

Duplo Watering Can23990

2016-202611 years

Vehicle Track, Monorail Curve Long2672

1988-19947 years

Hair Long Wavy with Bangs Swept Back (Moana)28705

Panel 10 x 10 x 2 2/3 Quarter Saucer Base30201

1998-20025 years

Duplo Road Section Straight 2 x 7 x 231211

Hoe, Pixelated (Minecraft)3129

2023-20253 years

Train Base 6 x 16 Old with Magnets4178a

1972-19765 years

Lever Small Base4592

2001-20044 years

Sound Brick, Round, 9V 2 x 2 x 1 1/3 with Two Space Noises4774c02

1986-199510 years

Duplo Plow, Roller Holder4828

1985-200723 years

Hose, Pneumatic 4mm D. 26.25L / 21cm5102c26.25

1992-200615 years

Crane Section 4 x 12 x 3 with 8 Pin Holes52041

2005-20095 years

Hat Gnome - Pointing Backwards5320

8×12 Train Track Ramp53834

2019-20268 years

Animal, Cat, Standing [Plain]6175

1994-20029 years

Duplo Toolo Tipper Bucket6311

1992-200817 years

Duplo Airplane Small Undercarriage6356c01

1993-200311 years

Duplo Rock65870

2020-20267 years

Helmet - Space with 2 Rear Studs71966

1998-19992 years

3×2×1⅔ Wedge, Curved w/ Cutout, Left7519

3×2×1⅔ Wedge, Curved w/ Cutout, Right7520

Plate Special 5-Point Star 2 x 2 with One Stud8295

75mm ID. Tire, Motorcycle R (94.2×22mm)88516

2010-202415 years

Duplo Present Box31284

1999-200810 years

Duplo Cabinet Refrigerator4914

1986-19927 years

4×2 Curved, Inverted5853

Duplo Building Door Frame / Entryway with Double Doorway and 4 x 8 Studs on Top6432

1995-200511 years

Duplo Water Container, 2 x 3 Studs on Top75084

1995-200511 years

Technic Brick Special 12 x 2 with 2 Side and 2 End Pins, Technic Holes, and 4W Flared End30621

2001-20044 years

Duplo Trailer Four Rear Wheels, Elevated Front End, 4 x 12 Studs47411

2004-20085 years

Hemisphere w/ Stud, 3-Ribs50018f

2019-20224 years

Train Motor 12V Connecting Rod502

1980-19856 years

16×12×2⅔ Book Cover w/ 2-Pin Holes65196

2020-20212 years

Weapon Sword Small10053

2012-20143 years

Modulex Brick 1 x 10 with M on Stud1110M

Large Figure Shoulder Cover, Armor, Elaborate, Curved15369

2014-20174 years

Brick Special 1 x 1 x 2 with Extra Tube Side [Piece of Resistance]15444

2014-20152 years

Lightsaber Blade with Cross21699

2015-20206 years

Spiral [Fireman] Pole 32L23421

2016-20216 years

Technic Digger Bucket 4 x 724120

2016-202611 years

Duplo Door / Window with Cutout (Semi Oval)27382

2017-20248 years

Duplo Rock Cave with Door Opening31072

1997-19993 years

Forklift Mast and Carriage 2 x 2 Plate and Yellow Fork [Complete Assembly]3430c02

1972-19809 years

Neckwear Cape, Scalloped 5 Points, One Top Hole [Spongy Stretchable Fabric]37157

Cable, Fiber Optics, Wide 20L / 16.0cm40002c20

2003-20064 years

Large Figure Weapon Trident, with Long Axle40339

2001-20077 years

Sports Basketball [Plain]43702

2002-20032 years

Large Figure Weapon Blade, Ice Skate / Ice Blade Half44032

2002-20087 years

Primo Brick, Star 1 x 144591

2003-20053 years

Large Figure Weapon, Matoran Kolhii Stick44811

Large Figure Weapon, Matoran Kolhii Disc / Ball44812

Technic Axle Connector 2 x 3 Perpendicular with Catch44850

Technic Axle and Pin Connector 2 x 4 Double Sloped44851

Baseplate 16 x 16 Road / Driveway [Plain]51595

2005-20117 years

19mm D. Ball52629

2020-20267 years

Brick Separator 4 Studs Wide55819

2020-20223 years

Brick Round 2 x 2 Dome Top with 2 Ears5690

2024-20263 years

Launcher, Large Figure Weapon, Squid Ammo Launcher57556

Scala, Building, Wall, Arched 18 x 2 x 22 2/36906

1997-19993 years

HO Scale Accessory Garage 4 x 8 x 3 Box with Trans-Clear Top721

1961-19699 years

Construction Vehicle Bucket Arm, Large828

1972-198413 years

Vehicle Base, Train 6 x 34 Split-Level without Bottom Tubes87058

2008-20158 years

Minifig Neckwear Ruff99251

75mm ID. Motorcycle Tire, (100.6×22mm)11957

2013-202614 years

Large Figure Skeletal, Limb with Ball Joint and Ball Socket, Rounded Beam20474

Duplo Roof-piece Slope 17° 2 x 6 Stepped with Red Shingles6465c02

1994-200512 years

Light Brick 2 x 4 [Red LED]54605

Duplo Arch 4 x 10 x 3 with Glass (Skylight)6436

1995-20006 years

Brick 10 x 20 with Bottom Tubes in single row around edge, with dual '+' Cross Supports700c

1976-19772 years

Crane Jaw Curved91347

2010-20178 years

Vehicle Base, Train 6 x 34 Split-Level with Bottom Tubes2972

1993-20019 years

Wing Plate Bi-level 12 x 9 (Exploriens)30037

1996-19983 years

Duplo Plant, Flower 6 x 6 with 4 Top Studs31218

1999-20013 years

Duplo Sleeping Bag / Baby Pouch [Plain]45896

2001-20088 years

Duplo Animal Dog Scottish Terrier / Scottie (No Base)4946

1986-19905 years

Large Figure Weapon Blade, Aqua Warblade (Hewkii Mahri)57527

2007-20093 years

5×8×3⅔ Curved Panel w/ 2-Axle Holes76798

2021-20233 years

Container / Box, Open Ended 4 x 4 x 4 with 1 Hinge Finger Each End [Plain]30639

2001-20022 years

Clikits Container Box, Bottom, Square with 1 Hole51462

2005-20062 years

Smoke / Bubbles with Anti-Stud5533

2024-20263 years

6×8×2 Windscreen, Ø8 End w/ 6-Studs7664

Coaster Track, Slope26561

2018-20269 years

#43 11×5×2 Mudguard, Arched3538

2023-20264 years

Duplo Door / Gate / Stabledoor 1 x 4 x 42294

1990-200516 years

Support 2 x 16 x 2 Girder Triangular Horizontal30518

2000-20089 years

Light Prism Brick, Train, 1 x 6 Holder4170

1980-19878 years

Socket Wrench, Short w/ Stud & Hexagonal Head50018c

2019-20224 years

Gun / Impact Driver50018b

2019-20224 years

8×16×⅔, Ø4 Blate w/ Rounded Corners5251

2025-20262 years

Projectile, Large Figure Weapon Ammo, Mistika Nynrah Ghost Blaster61811

Brick Special 1 x 2 x 2 1/3 with Spring Unit2605c01

1991-19988 years

Foot, 4 Toes with Hinge Finger3560

2023-20264 years

4×8×6 ½-Cone w/ Roof Tiles1746

2022-20254 years

Hinge Brick 2 x 4 Locking with 1 Finger on Top at One End18455

2015-20239 years

Plate Special 6 x 6 Octagonal with Opening30062

1997-19993 years

Technic Arm 1 x 7 x 3 with Gear Ends32311

Duplo Siren with Light & Sound, 1 x 2 White Base with Red Button39787c01

2019-20235 years

Large Figure Mask Vahi41413

2002-20054 years

Clikits Rectangle 1 7/8 x 8 with Rounded Corners and 3 Holes [Plastic]46621

Skull 1 x 4 x 3 Relief with Two Pins47990

2004-20096 years

Windscreen 3 x 4 x 1 1/3 with 6 Studs on Top4866

1985-19895 years

Animal, Dolphin (Normal Connection - With Axle Holder)6228b

1995-19984 years

Duplo Toolo Plate 4 x 126668

1995-20006 years

6×6 Tile, Round7212

2025-20262 years

5×2½×3⅓ Rock, Crystallized7591

Headwear Accessory Flowers with Small Pin7737

1×3 Thin Beam w/ Trapezoidal Frame7944

Duplo Doll High Chair31314

2001-20088 years

Duplo Support / Column / Girder35964

2021-20266 years

Light Gray Pullback Motor 6 x 2 x 1 1/3 with Black Base, White Shafts (Motor 1)41857c01

2002-20032 years

14L Pneumatic Hose5102c14

2010-202617 years

Duplo Cannon Ball 1/2 with Axle Connector54043

2006-20149 years

Duplo Plate 12 x 6 Rounded (Cloud)5897

2025-20262 years

Duplo Train Track Bridge End Section With Bottom Support (New Style)6392

1994-201825 years

Duplo Train Track Bridge Middle Section, New Style Half Arch With Mid-Support6393

1994-201825 years

Crane Hook 1 x 4 x 170278

1986-199914 years

Box / Case, Fold-Out Race Track 34 x 4286501

2009-20102 years

Windscreen 8 x 6 x 2 1/3 Bubble Canopy with Handle98102

2012-20209 years

Duplo Building Wall 4 x 3 x 5 Curved Turret with Balcony - Castle98236

2012-202514 years

-65° 2×8×2 Window, 6-Panes2634

1991-200919 years

Duplo Train Tipper 2 x 4 with Straight Sides (Skip)4548

1983-199816 years

Duplo Train Tipper Holder 2 x 6 (Skip Holder)4549

1983-199816 years

28 Tooth, Dbl. Bevel w/ Pin Hole65413

2020-20245 years

Duplo Crane Arm with Locking Ring and String Drum Holder13341

2013-202614 years

Hat High Cone Shaped2338

Wheel Hard Plastic Giant (71mm D. x 47mm)2573

1990-200718 years

Roof Piece 6 x 6 x 3 Peaked30614

2001-20033 years

Duplo Toolo Engine Block31382c01

2000-20012 years

Weapon Bow and Arrow Recurve3748

2023-20264 years

Duplo Winch Drum Narrow with White String and Black Thick Hook with Stud Case and Horizontal Bar41169c04

2002-20054 years

45° 6×8 Double Slope w/ 4×8×⅔ Cutout5120

2024-20263 years

Pencil Topper, Integrated 2 x 2 Plate with White Clip51493c01

2016-202611 years

Duplo Stove 2 x 4 x 2 1/2 with 4 Studs and Burner6472

2006-201712 years

Duplo Technic Axle 5L with Paddle Wheel Gear 8 Tooth6523

1995-201521 years

Belville, Headwear, Crown72515

1999-20079 years

Wave / Lightning 5 x 6 with Axle Hole7776

Vehicle Base, Trailer 4 x 14 x 1968

1970-19756 years

Panel 4 x 3 x 3 with Porthole with Trans Light Blue Glass30080c01

Door Frame 3 x 6 x 6 with Inside Grooves3417

2023-20264 years

Wheel Cover 5 Spoke, No Rim6825a

2025-20262 years

Wheel Cover 9 Spoke, No Rim6825b

2025-20262 years

Duplo Ball Tube Straight with Opposing Oval Holes41288

2001-20044 years

Large Figure Shoulder Cover, Armour, Ridged20475

2015-20162 years

Train Front Sloping Top2917

1991-200111 years

Glass for Train Front Sloping Top2918

1991-200111 years

Duplo Ball Tube Exit Door31193

2006-202015 years

Large Figure Mask Rau (Turaga)32574

Large Figure Mask Mahiki (Turaga)32575

Duplo Crown42001

2002-20076 years

1×1 w/ 2-Bars, 90°50018d

2019-20224 years

13L Pneumatic Hose5102c13

1980-202445 years

Pencil Topper, Integrated 2 x 2 Plate with Black Clip51493c02

2017-20215 years

56mm ID. Balloon Tire, (94.8×44mm)54120

2006-20138 years

Cable, Connector, 50cm for NXT55806

2006-20138 years

Mace Head w/ 6-Points5686

2024-20263 years

Equipment Martian Hypersled with Pin (Mars Mission)58843

2007-20082 years

Castle Turret Top 7 x 7 Corner6072

1993-19975 years

Projectile, Large Figure, Shadow Leech60929

Duplo Technic Brick 2 x 10 with 9 holes6515

1995-201521 years

Duplo Technic Axle 86521

1995-200814 years

Light Holder 1 x 1 x 2/3 with Bar 1L71183

1996-20016 years

Technic Shock Absorber 10L, Damped, Soft Spring76320c02

1999-20035 years

Electric Connector, 1 Way Male Rounded with Cross-Cut Pin (Banana Plug)996bc01

1968-19703 years

Brick 2 x 3 without Bottom Tubes, Slotted (with 1 slot)3002d

Plane, Bottom 18 x 16 x 1 x 1 1/335106

2018-20203 years

Sports Skateboard with Mag Wheel Holders45917

2003-20042 years

Clikits Hair Clip, Grip, 5 Teeth per Side51027

2005-20062 years

34L Flex Tube75c34

1999-202628 years

6×7×1⅓ Windscreen, Curved w/ 2-Studs80222

2022-20265 years

Pendant, Heart77814

2022-20232 years

Sports Barbell Weight91049

2010-20145 years

Brick Special 2 x 8 x 5/6 with No Top Studs, and Channel on Ends, and Stud Holes on Sides2832

Equipment Medical Wheelchair with Pins for Wheels [Minidoll]02135

2023-20253 years

Duplo Boat Hull 7 x 12 Top Section with 6 x 8 Deck Studs15575

2014-202411 years

Duplo Boat Base15576

2014-202411 years

Windscreen 10 x 10 x 4 Octagonal Canopy2598

1995-20039 years

Znap Beam Double Curve 4 Holes32218

Crescent Blade3757

2023-20264 years

Technic Panel RC Car - Flexible Right45783

2004-20063 years

Technic Panel RC Car - Flexible Left45785

2004-20063 years

Clikits Ring / Keyring 3.5 x 3.551026

2005-20062 years

6×6×1⅓ Windscreen, Curved w/ 2-Studs65633

2022-20265 years

Helmet, Standard, 2 Horn Holes82252

Hat Gnome - Pointing Forwards93558

Duplo Axe / Tomahawk Square Handle and Hollow Bottom18018

2014-202613 years

Duplo Hose Flexible 12L with Handle and Clip25981

2016-20238 years

Technic Turntable Large Type 1 Base, 56 Tooth2856

1995-201218 years

Headwear Accessory Ear Protectors / Headphones Type 235183

2018-20214 years

Fabuland, Equipment Rake4324

1982-200322 years

Duplo Turntable Base, 2 x 4 Plate with Crane Arm with Handle, Winch, & Claw4567c01

1983-19919 years

Headwear Accessory Visor with Antenna (Ice Planet)6119

Belville Umbrella Stand with Square Base6253

1995-20017 years

Duplo Wagon Body Large with 2 x 6 Studs and Open Sides6440

1988-200114 years

Container Lid for Part 8650164700

2009-20102 years

Vehicle Base 4 x 12 for Steering Gear803

1967-19715 years

Creature Body Part, Horn, Wampa / Tauntaun Left86057

2009-202113 years

Creature Body Part, Horn, Wampa / Tauntaun Right86058

2009-202113 years

Launcher, Air Blast Pump [Racers]87943

2010-20112 years

Pullback Motor 8 x 4 x 2/310039

2012-20143 years

Modulex Perforated Foil Sheet 20 x 501650

Hat, Wrapped Head Bandages24073

2017-20248 years

Large Figure Skeletal, Connector with 2 Ball Joints24189

Large Figure Skeletal, Torso, 5 x 10 with 2 Ball Joints, and Gear24190

Cockpit 4 x 2 x 3 with Pin Hole, 3 Towballs and 2 Clips27168

2017-20182 years

Battery Box, 9V 4 x 14 x 4 with Yellow Base [Complete Assembly]2847c02

1992-200110 years

Hub / Controller, Train Speed Regulator 9V2868b

1991-200414 years

4×8×4 Small Hub (2-Ports, 6x AAA)28738

2018-20269 years

Motor Cover, 9V Micromotor 2 x 22984

1993-200210 years

Motor, 9V Micromotor 2 x 22986

1993-20019 years

Hair Long and Side Braided with Headband30114

1997-19993 years

Duplo Food Cake with White Frosting31287c01

1999-200810 years

Launcher Firing Pin, Net Shooter35457

2018-20225 years

Hips and Dark Brown Medium Legs [Complete Assembly]37364c07

Fabuland Fire Ladder Holder 2 x 4 x 2 1/23999

1979-200325 years

Duplo Hose with Rubber End and Black Nozzle58498c02

2013-20175 years

Electric Adapter / Transformer, 120V 60Hz, Train Speed Regulator 9V70931

1991-200414 years

Sorting Tray, DOTS, Lid901956

2020-20223 years

Sorting Tray, DOTS, 7 Compartment901957

2020-20223 years

Plant, Fabuland Tree9213

Weapon Dagger, Bone2186c

Fence 2 x 12 x 630110

1997-200711 years

Plate Special Round 2 x 2 with Rotation Stem and Screw50407

2019-20202 years

Clikits Bracelet, Jelly 6 x 651052

2005-20062 years

Clikits Icon, Shell 2 x 2 with Hole51674

2005-20062 years

Images are not available for 115 parts on this page.

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4501 to 4750

The LEGO Parts Guide is a work in progress

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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.

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