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

4001 to 4250

Part Name(Part Number)

Overall
Rank

Receiver Unit, IR, Power Functions58123a

2007-201913 years

30L Flex Tube75c30

1997-202630 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

2×6 Jumper w/ 10-Studs, 2-Ridges7665

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

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

Wheel Smooth 24 x 14mm with Pin Hole5253

2025-20262 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

1×10×4 Windscreen65735

2020-20267 years

Modulex Brick 2 x 4 with M on Studs1142M

Technic Steering Rack Top - Modified 1 x 8 Technic Plate with Toothed Ends2792

1988-199710 years

Paint Brush93552

2018-20258 years

Rotor, Spinner, 10 Diameter35775

2017-20182 years

String Cord Medium Thickness (1mm) 150cm37597c150

2017-20259 years

Clikits Icon, Square 2 x 2 Large with Pin45466

2003-20053 years

4×14 Vehicle Base7035

2025-20262 years

Weapon Bow and Arrow Compound10258

2012-20165 years

Hair, Braided with Bun3532

Wire with Brick 2 x 2 x 2/3 and Train Track Contacts5306c01

1991-200414 years

Hair Braids, Long, Knot83345

Duplo Trailer, Open Bars, Animal Transporter2130

1987-200014 years

Duplo Car with 1 x 2 Studs with Yellow Base2235c01

1990-200011 years

Vehicle Base, Carriage 4 x 6 x 1 2/3 with Wheel Clip Pins24055

2016-20194 years

10×5×6 ½-Cone29096

2017-202610 years

Large Figure Foot, Wedge 3 x 7 x 332560

2001-20055 years

Ring 14 mm Inside Diameter [For Humans]36970a

2018-20247 years

Ring 16 mm Inside Diameter [For Humans]36970b

2018-20247 years

Motor, 9V Mini [Lightweight New Style]43362c01

1998-20058 years

Duplo Flower Gear with 8 Teeth, Metal Bolts Design44534

2003-20042 years

Clikits Connector, L-Bent with 2 Pins45486

2003-20042 years

Clikits Icon Accent, Flower 5 3/8 x 5 3/8, 10 Petals46470

2003-20042 years

Clikits Insert 10 x 10 for Frame46618

2003-20064 years

Train Buffer w/ Plow, Magnet64415

2006-202621 years

Angled Connector, Quadruple 60°6611

2025-20262 years

8×11 Ramp Base77822

2022-20254 years

Wedge Sloped Inverted 8 x 10 x 1 Boat Bow2622

1991-200010 years

Boat, Mast Section Base, Plate 4 x 4 x 1 2/36067

1992-200110 years

36mm D. × 16mm Wheel w/ Tire, Technic Pin Hole3486

2023-20253 years

Technic Gear 21 Large Tooth572

1970-19745 years

Duplo Couch / Sofa with Rounded Back and Eight Studs6476

1994-200714 years

Strap w/ Rings (Vidiyo)65130

2021-20222 years

1×4×2⅓ Curved5844

Equipment Underwater Scooter, 2 Bar Handles, Octagonal End30092

1997-20026 years

Weapon Axe (Fabuland)4438

1983-200321 years

Large Figure Mask Komau (Turaga)32572

Windscreen 8 x 8 x 3 Dome with Dual 2 Fingers - 7 Teeth69320

2020-20267 years

1×4×1 Curved5849

Cable, Fiber Optics6640

1996-20005 years

Brick Arch 2 x 14 x 2 1/330296

1999-200911 years

Primo Vehicle Base with Tow Hitches and Treaded Tires45205

2×11 Pneumatic Cylinder19478

2015-202410 years

Brick Magnet 2 x 33002c01

Large Figure Torso Cover, Armour, Toa Inika (Type 2) [Plain]53547

2006-20094 years

Cable, Connector, 35cm for NXT55805

2006-20138 years

8×8×2 Pod w/ Ø4 Corners (Vidiyo)65129

Animal Body Part, Dinosaur, Pteranodon Jaw Bottom with Pin [Flexible Plastic]98087

2012-202413 years

Duplo Ladder (Fire)2033

1987-200721 years

Duplo Fishing Rod and Hook with Red Line23146

2001-201818 years

Animal Body Part, Shark / Sawfish Head30085

1997-201014 years

Battery Box, Train Car with Black Base, Red Wheels and Magnets3443c02

1972-198615 years

Hook, Fabuland Tow Hook - Arm, 2 x 4 Base3997

1979-200325 years

Duplo Turntable Base, 2 x 4 Plate with Ladder Holder4567c02

1987-200721 years

Construction Vehicle Bucket 4 x 8 with Locking 2 Finger Hinge with 9 Teeth47508

2003-201513 years

Creature Body Part, Dragon, Head5975

Scala, Door, Cupboard 8 x 66879

1997-20015 years

2×4 Tilt Steering Holder69963

2021-20244 years

Boat Hull Section, Stern 6 x 6 x 3 1/3 with Light Gray Deck164c01

1976-198510 years

Shield Pentagonal with Rock Edges22409

2016-20172 years

Technic Flex Cable End with Pin Connection [Old Style - No Clamp]2900

1991-19933 years

Duplo Wagon Body with Sides3982

1979-199214 years

Motor Wind-Up 4 x 10 x 3 Key4234

1981-200121 years

Duplo Cannon Ball 1/2 with Axle Connector and 4 Holes in Top54043b

2011-20177 years

6×16×2⅔ Trailer Base64954

2021-20255 years

Windscreen 7 x 4 x 2 Round Extended Front Edge89762

2010-20112 years

Boat Hull Section, Bow 6 x 8 x 3 1/3 with Light Gray Deck997c01

1976-198510 years

Large Figure Weapon Axe, Sword with Jagged Blade11338

2013-20142 years

30mm ID. Tire (49.5×14mm)70490

2021-20244 years

Duplo Treasure Chest Opening 2 x 3 x 3 with Detailed Lid Ends11249

2013-202412 years

Panel 10 x 10 x 2 1/3 Quarter Saucer Top30117

1997-20026 years

Duplo Toolo Wheel with Action Wheeler Screw Short99565c01

2009-20135 years

Large Figure Cockpit Seat with Ball Joint15353

Brick Special 1 x 1 with Stud on Side and Conductive Element on Opposite Side15411

Duplo Building 4 x 8 x 6 with Front Door and Window6431

1988-200518 years

7L Wide Track69910

17L Flex Tube75c17

1998-201114 years

Duplo Train Track Straight 4 x 3 (Short)4665

1984-19918 years

DUPLO 45° 4×2×3 Slope49570

2020-20256 years

2×2×1⅔ Curved7527

Weapon Disc40598a

2019-20202 years

Weapon Grenade, Blunt Tip40598c

2019-20202 years

Weapon Grenade, Tapered Tip40598d

2019-20202 years

Equipment Key Ornamented with Stud19118

2015-20162 years

Duplo Hose Flexible 11L with Grabber Hand Ends and Middle Stud42030

2002-201716 years

15L Ribbed Hose78c15

1998-200710 years

Train Cow Catcher, Plate Special 2 x 6 with Sloped Bars90201

2010-201910 years

Sports Soccer Goalie Stick Holder Base41733

2002-20054 years

Duplo Wagon Body Large Side Hatch6441

1988-200114 years

Weapon Gun / Pistol / Revolver Small Barrel13562

String Cord Medium Thickness 100cm14728c100

1989-201325 years

Panel 3 x 3 x 3 Corner Convex30079

Duplo Cabinet 4 x 6 x 431371

2001-20088 years

Sports Tennis Racket - Round Holes53019

2020-20245 years

Panel 6 x 6 x 9 Corner Convex with Curved Top6002

1992-202029 years

15L Flex Tube75c15

1997-201014 years

Modulex Brick 2 x 5 with M on Studs1152M

15×2×5 Mudguard, Arched24118

2016-20194 years

Duplo Loading Chute / Silo Sliding Door Panel / Lid31026

1996-200712 years

Technic Beam 3 x 7 x 2 Fork 3 Fingers32308

2000-20012 years

String Cord Thin (0.5mm) 200cm56823c200

1995-201521 years

Duplo Trailer Ramp / Door 1 x 4 with Handles13246

2010-20178 years

Minifig Neckwear Backpack with Sleeping Bag30323

1998-20058 years

Duplo Toolo Wings31238

2000-20012 years

Duplo Brick 2 x 2 x 2 Yellow with Flex Spring35110c01

2003-202321 years

Large Figure Hockey Player Body44849

2003-20064 years

Scala, Headwear, Hair Band with Stud71882

1998-19992 years

Hair Swept to Right76772

2022-20232 years

Minifig Hipwear Skirt [Plain]24782

2024-20252 years

Boat Deck 8 x 16 x 328535

2017-20237 years

Duplo Kettle Lid With Handles31331

2001-201010 years

Food Ice Cream Cone with Ice Cream33120

2L Bar w/ 3-Clips3628

2023-20253 years

Wheels Train Spoked Small (23mm D.) and Black Brick, Modified 2 x 4 [Red]4180c04

1980-19856 years

Large Figure Skeletal, Limb, Angular with Ball Joint (Toa Hordika)50922

2005-20084 years

Headwear Accessory Plume / Feather Headdress87696

1994-20029 years

Dinosaur Jaw, Raptor37407

2020-20256 years

Duplo Toolo Arm Turning with Set Screw End6662c01

1995-19995 years

Musical Instrument Bugle71342

1996-20027 years

Train Base 6 x 16 Type I with Wheels and Red and Blue Magnets736c02

1972-19787 years

Wheel Hard Plastic, Treaded with 7 Pin Holes and 6 Small Holes11094

2013-20153 years

Duplo Container Box 2 x 4 x 2 with Open Sides18806

2011-202414 years

Glass for Hinge Car Roof 4 x 4 Sunroof [No Ridges]2348a

1986-19872 years

Large Figure Accessory, Shadow Trap24188

Clikits Icon Accent, Flower 2 7/8 x 2 7/8, 5 Petals46464

2003-20042 years

Weapon Lightsaber Hilt Short Curved with Ridges61199

2008-202518 years

Scala, Cupboard / Drawer Small6799

1997-20004 years

Vehicle Track, Train, Plastic, Narrow, Curve85976

2009-20168 years

Large Figure Mask Miru Nuva43614

2002-20054 years

Brick Special 1 x 8 x 5/6 with No Top Studs and Channel on Ends2833

Large Figure Torso Cover, Armour with 4 Handles11271

2013-20153 years

Weapon Sword Hilt with Skull and Bar (Djinn)23985

2016-20172 years

Fence / Bar 1 x 8 x 32583

1990-19989 years

Headwear Accessory Crown / Tiara, 5 Points25974

2021-20255 years

Duplo Chair with 4 Studs and Rounded Back31065

1997-20026 years

Large Figure Visor / Limb Cover, Armour [Plain]32169

1999-20024 years

Minifig Neckwear Baby Carrier37822

2021-20266 years

Equipment Ladle4337

1982-200524 years

Duplo Couch / Sofa 2 x 6, with Two Studs4888

1986-200015 years

Boat Deck 51 x 12 x 654101

2006-202116 years

Large Figure Head Connector Block (Av-Matoran)60901

2008-20103 years

Minifig Neckwear Pauldron (Star Wars Accessory)61190b

2008-20114 years

Creature Body Part, Dragon Body [Plain]6129c01

1993-20008 years

Duplo Equipment, Broom / Brush, Short Bristles70675

2021-20266 years

Feet, 2 x 2 x 2/3, Front Left Foot Forward with 4 Studs on Top79750

2021-20233 years

Hair Short Curly80911

Boat Hull Section, Middle 8 x 6 x 3 1/3, Deck Color White185c02

1973-19742 years

Znap Beam 11, 4 Holes, 2 Bends32204

1998-19992 years

Fabuland, Building, 2 x 6 x 7 with Window, Round Type 1 Yellow3979c02

1980-19878 years

Windscreen 12 x 6 x 6 Curved41881

2002-20109 years

Technic Axle Connector Rectangular Triple Spring-Loaded, 2 x 344852

Clikits Icon, Square 2 x 2 Small with Pin [Polished]46288

2003-20053 years

Clikits Container Box, Square with 2 x 2 Holes Arrangement - Hinged48794

2004-20063 years

3×1 Steering Arm w/ Towball Socket5997

2025-20262 years

Duplo Building Wall with Door Frame6459

1994-200512 years

Creature Body Part, Dragon Head Lower Jaw with 6 Studs on Top, Spike, Teeth [PLAIN]76923

2022-20254 years

Weapon Throwing Star / Shuriken, Curved Blades86125b

Bar 16L with Open Stud, Towball, and Slit [aka Windsurfer Mast]30219

1998-20047 years

Creature Body Part, Dragon, Tail5978

Weapon Throwing Star / Shuriken with Trailing Effect73766a

Pod, Round, Half, Alien 2 x 4 x 213754

2013-20175 years

Launcher, Weapon Gun / Blaster / Shooter22487

2016-20183 years

Door 2 x 5 x 5 Swivel, Flat Base30102

1997-20015 years

Plant, Palm Tree Base and Trunk 4 x 430338

1999-200911 years

Panel 2 x 8 x 830650

2001-20033 years

Duplo Brick 2 x 4 with Wings31215

1999-20046 years

1×9 Thin Beam w/ 3-Holes4586

2023-20264 years

Grab Claw with Axle49700

2019-20224 years

Scala, Bed 8 x 246940

1997-20004 years

Window 1 x 3 x 5 Shutter791

1978-19858 years

Large Figure Skeletal, Torso, Angular with Ball Joints87794

Equipment Tranquilizer Gun with Top Clip99809

Plume / Feathers with Clip30127

1999-20013 years

Primo Wheel Base 1 x 2 with Hitches and Red Wheels31605c02

2001-20055 years

Headwear Accessory Vintage Sci-Fi Antenna5525

2024-20263 years

Slope Curved 3 x 2 Beveled with Stud Notch Left6822

2025-20262 years

Slope Curved 3 x 2 Beveled with Stud Notch Right6823

2025-20262 years

8×8 Baseplate w/ Adhesive80319

2022-20232 years

Boat, Mast Section Top 16 H with 4 stud holes at bottom, With Bottom Nubs2538b

1992-200211 years

Wedge Plate 8 x 12 Boat Bow47405

2004-20107 years

Duplo Plate 8 x 8 with Trap Door Opening51705

2004-20118 years

String Cord Thin (0.5mm) 30cm56823c30

1980-199617 years

56mm ID. Tire, R (94.3×38mm)92912

2011-202010 years

Duplo Railing with Circle Openings4668

1984-19929 years

Glass for Window 1 x 6 x 53762

1978-19847 years

Wire with Brick 2 x 2 x 2/3 Pair, 69L5306bc069

1995-20039 years

Duplo Support 2 x 4 x 3, Girder65156

2020-20267 years

5×5 Hemisphere w/ 2-Pin Holes7343

2025-20262 years

Scala, Curtain Rod or Wall Clip6691

1997-20015 years

Gear Samsonite 14 Tooth741

1965-19717 years

Large Figure Weapon Gun, Body with Hole on Side24123

2016-20172 years

Large Figure Shoulder Cover, Armor with Holes and Ball Joint24124

2016-20183 years

Belville, Equipment, Spoon30111a

1996-200813 years

Wedge Plate Special 12 x 12 with 4 x 8 Recessed, Pin Holes43979

2019-20257 years

Box 6 x 6 Bottom4452

1983-199311 years

Support Assembly, Column 2 x 2 x 12 Grooves on all Sides and Top Peg insert47549c01

2004-20052 years

Weapon Spiked Ball Half with 2 Axle Holes54177

2006-20116 years

14mm D. × 9.9mm Wheel w/ Technic Pin Hole5807

Headwear Accessory Floodlight for Helmet, with Holes (Star Wars Clone Trooper)63585

2008-20158 years

5×4×9 Large Angular Motor (w/ Absolute Position)54675

2020-20234 years

Belville / Scala, Equipment Skillet6992

1997-20048 years

Modulex Tile 1 x 1 with No Lining1011A

Modulex Tile 1 x 2 with Internal Supports1021B

Modulex Tile 1 x 3 with Internal Support1031B

Modulex Tile 1 x 4 with Internal Supports1041B

Modulex Brick 2 x 2 with LEGO on Studs1122L

Modulex Slope 1 x 1 (45 degree, 1:1 slope)1511

Modulex Slope 1 x 2 (27 degree, 1:2 slope)1521

Modulex Slope 1 x 3 (18 degree, 1:3 slope)1531

Modulex Slope 1 x 2 (9 degree, 1:6 slope)1561A

Modulex Slope 1 x 4 (9 degree, 1:6 slope)1561B

Modulex Brick 1 x 1 x 4 with Vertical Grooves2314

Modulex Brick 1 x 1 x 5 with Vertical Grooves2315

Modulex Brick 1 x 4 with Horizontal Grooves2341Mx

Modulex Brick 1 x 5 with Horizontal Grooves2351Mx

Modulex Brick 1 x 6 with Horizontal Grooves2361Mx

Modulex Brick 1 x 7 with Horizontal Grooves2371

Duplo Cape with Elastic Loop17478

2014-20174 years

6×6 Round Brick w/ 5-Pin Holes18897

2015-202511 years

Weapon Throwing Star / Shuriken, Bone2186b

Minifig Neckwear Bow Tie27151

Belville, Animal / Creature Accessory, Horse Brush30112a

1997-200812 years

Belville, Animal / Creature Accessory, Horse Comb30112b

1997-200812 years

Belville, Animal / Creature Accessory, Horse Riding Crop 7L Bent30112d

1997-200812 years

Images are not available for 121 parts on this page.

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4001 to 4250

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