LEGO part 66789: Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs
Specifications
| Reference | 66789 |
|---|---|
| Category | Plates Round Curved and Dishes |
| Material | ABS plastic |
| Colours | 14 |
| Sets | 87 |
| Listed pieces | 242 |
| First appearance | 2020 |
| Latest appearance | 2026 |
| Element (Bright Green) | 6301631 |
LEGO part 66789, Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs, belongs to the Plates Round Curved and Dishes category. It exists in 14 colours and appears in 87 sets of our database, from 2020 to 2026, for a total of 242 listed pieces. Its most common colour is Bright Green.
Number 66789 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in bright green, it is 6301631.
Part 66789 through the years
The oldest set in our database that contains part 66789 is 71360 Adventures with Mario Starter Course, released in 2020 in the Super Mario theme. It is still in use: the most recent set featuring it, 45522 Computer Science & AI Kit 6-8, dates from 2026.
Its peak year is 2024, with 23 sets containing it. The set with the most copies is 71368 Toad's Treasure Hunt Expansion Set: 11 copies, against an average of 2.8 per set.
The part is closely tied to the Super Mario theme: 62% of the sets that contain it belong to it. With 87 sets, it ranks no. 1,199 of 2,731 parts in our database and no. 31 of 46 in the Plates Round Curved and Dishes category.
Sets containing part 66789, by period
| Period | Sets | |
|---|---|---|
| 2020 | 14 | |
| 2021 | 9 | |
| 2022 | 14 | |
| 2023 | 12 | |
| 2024 | 23 | |
| 2025 | 11 | |
| 2026 | 4 |
Colours of part 66789
Its rarest colour, lime, appears only in set 77046 Julian's Birthday Party.
| Colour (element ID) | Sets | Pieces | Example sets |
|---|---|---|---|
| Bright Green6301631 | 44 | 89 | 713877138071360 |
| Yellow6314191 | 15 | 18 | 713877138071408 |
| Red6294705 | 13 | 27 | 713807140371369 |
| Blue6301629 | 12 | 15 | 713807136071400 |
| Light Bluish Gray6299919 | 10 | 16 | 714117138071408 |
| Medium Nougat6301636 | 8 | 15 | 713877140171412 |
| Dark Orange6301632 | 8 | 10 | 713607141271377 |
| Dark Purple6326550 | 7 | 10 | 713877140871383 |
| Dark Azure6301637 | 5 | 10 | 714007138971398 |
| Medium Azure6429297 | 5 | 8 | 770567705171417 |
| White6475043 | 4 | 8 | 604346043342605 |
| Reddish Brown6561358 · 6301634 | 4 | 7 | 602717136811512 |
| Tan6301627 | 3 | 6 | 714347705177048 |
| Lime6476730 | 1 | 3 | 77046 |
Where to buy part 66789
Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.
Sets that include part 66789
Sets ranked by popularity that include at least one part 66789, in any colour.
71411The Mighty Bowser2022 · 2,807 piecesView the set
71387Adventures with Luigi Starter Course2021 · 280 piecesView the set
71380Master Your Adventure Maker Set2021 · 366 piecesView the set
71360Adventures with Mario Starter Course2020 · 231 piecesView the set
71408Peach's Castle Expansion Set2022 · 1,216 piecesView the set
71403Adventures with Peach Starter Course2022 · 354 piecesView the set
71369 Bowser's Castle Boss Battle Expansion Set2020 · 1,010 pieces
71362 Guarded Fortress Expansion Set2020 · 468 pieces
71401 Luigi's Mansion Haunt-and-Seek Expansion Set2022 · 877 pieces
71400 Big Urchin Beach Ride Expansion Set2022 · 536 pieces
71407 Cat Peach Suit and Frozen Tower Expansion Set2022 · 494 pieces
71390 Reznor Knockdown Expansion Set2021 · 862 pieces
43181 Raya and the Heart Palace2021 · 610 pieces
71363 Desert Pokey Expansion Set2020 · 181 pieces
71389 Lakitu Sky World Expansion Set2021 · 484 pieces
71383 Wiggler's Poison Swamp Expansion Set2021 · 375 pieces
71382 Piranha Plant Puzzling Challenge Expansion Set2021 · 267 pieces
71381 Chain Chomp Jungle Encounter Expansion Set2021 · 160 pieces
71367 Mario's House & Yoshi Expansion Set2020 · 206 pieces
71366 Boomer Bill Barrage Expansion Set2020 · 132 pieces
71398 Dorrie's Beachfront Expansion Set2022 · 229 pieces
71388 Boss Sumo Bro Topple Tower Expansion Set2021 · 231 pieces
71409 Big Spike's Cloudtop Challenge Expansion Set2022 · 540 pieces
71412 Big Bad Island Expansion Set2022 · 354 pieces
60271 Main Square2020 · 1,517 pieces
71368 Toad's Treasure Hunt Expansion Set2020 · 465 pieces
71376 Thwomp Drop Expansion Set2020 · 393 pieces
71365 Piranha Plant Power Slide Expansion Set2020 · 217 pieces
71364 Whomp's Lava Trouble Expansion Set2020 · 133 pieces
71399 Luigi's Mansion Entryway Expansion Set2022 · 504 pieces- 10784 Spider-Man Webquarters Hangout2022 · 155 pieces
71377 King Boo and the Haunted Yard Expansion Set2020 · 431 pieces
40414 Monty Mole & Super Mushroom Expansion Set2020 · 164 pieces
11200 Spidey and Gobby's Raptor Battle at Tree House HQ2025 · 143 pieces
77907 Toad's Special Hideaway Expansion Set2020 · 121 pieces
45522 Computer Science & AI Kit 6-82026 · 379 pieces
11512 Hanging Golden Pothos2026 · 372 pieces
45520 Computer Science & AI Kit K-22026 · 276 pieces- 30731 Tom Nook and Flying Present2026 · 33 pieces
72039 Mario Kart : Bowser's Castle2025 · 1,068 pieces
40506 LEGO Fabuland Tribute2025 · 1,026 pieces
72036 Mario Kart - Baby Peach & Grand Prix Set2025 · 823 pieces
77057 Creative Houses: Seasons of Fun2025 · 814 pieces
10373 Mini Bonsai Trees2025 · 709 pieces
77056 Blathers's Museum Collection2025 · 543 pieces
77055 Able Sisters' Clothing Shop2025 · 322 pieces
72043 Mario Kart : Interactive LEGO Mario & Standard Kart2025 · 278 pieces
77058 Goldie's Cosy House2025 · 149 pieces
77053 Stargazing with Celeste2025 · 78 pieces
60434 Space Base and Rocket Launchpad2024 · 1,424 pieces
71485 Mateo and Z-Blob the Knight Battle Mech2024 · 1,333 pieces
60433 Modular Space Station2024 · 1,099 pieces
42605 Mars Space Base and Rocket2024 · 981 pieces
77073 Battle Bus2024 · 954 pieces
71436 King Boo's Haunted Mansion2024 · 932 pieces
43246 Princess Market Adventure2024 · 821 pieces
71434 Soda Jungle Maker Set2024 · 598 pieces
60439 Space Science Lab2024 · 560 pieces
77052 K.K.'s Concert at the Plaza2024 · 550 pieces
77050 Nook's Cranny & Rosie's House2024 · 535 pieces
77049 Isabelle's House Visit2024 · 389 pieces
77051 Fly with Dodo Airlines2024 · 292 pieces
77048 Kapp'n's Island Boat Tour2024 · 233 pieces
71429 Nabbit at Toad's Shop2024 · 230 pieces
71439 Adventures with Interactive LEGO Mario2024 · 218 pieces
71440 Adventures with Interactive LEGO Luigi2024 · 210 pieces
Often found with part 66789
Parts that share the most sets with part 66789, based on set inventories.
Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs66792 · 61 shared sets
Feet, 2 x 2 x 2/3 with 4 Studs on Top66858 · 38 shared sets
Plate Round Corners 8 x 8 x 2/3 Circle with Reduced Knobs66790 · 32 shared sets
Arm, Long, with Technic Pin66788 · 30 shared sets
Plate Round Corners Double 4 x 8 with 2 x 2 Cutout and 2 x 8 Raised Studs, Reduces Nubs73832 · 20 shared sets
Plate Special 3 x 5 Cloud with 3 Center Studs35470 · 25 shared sets
Plate Round Corners Double 4 x 6 with 2 x 2 Cutout and 2 x 6 Raised Studs89681 · 13 shared sets
More parts in the Plates Round Curved and Dishes category
44375b Dish 6 x 6 Inverted (Radar) with Solid Studs200 sets
80015 Plate Round Corner 5 x 5 with 4 x 4 Round Cutout158 sets![Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°]](https://setobrick.com/files/part-4285b.jpg)
4285b Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°]146 sets
39613 Plate Angled 3 x 3 with Heart Shape109 sets
74611 Plate Round 8 x 887 sets![Dish 8 x 8 Inverted [Radar], Solid Studs, Rounded Anti-stud Underside](https://setobrick.com/files/part-3961.jpg)
3961 Dish 8 x 8 Inverted [Radar], Solid Studs, Rounded Anti-stud Underside74 sets
65138 Dish 4 x 4 with 4 Studs73 sets![Dish 4 x 4 Inverted with Open Stud [Radar]](https://setobrick.com/files/part-35394.jpg)
35394 Dish 4 x 4 Inverted with Open Stud [Radar]64 sets
Frequently asked questions
How many LEGO sets include part 66789?
Part 66789 (Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs) appears in 87 sets listed on Setopedia, from 2020 to 2026, in any colour.
Which LEGO set contains the most copies of part 66789?
Set 71368 Toad's Treasure Hunt Expansion Set, released in 2020, contains 11 copies, the highest count in our database. On average, a set containing part 66789 has 2.8.
Which colours does LEGO part 66789 come in?
14 colours are listed for part 66789. The most common is Bright Green, found in 44 sets.
What is the rarest colour of part 66789?
According to our inventories, it is lime, found in only 1 set (77046 Julian's Birthday Party).
What is the element ID of part 66789 in bright green?
In bright green, part 66789 has element ID 6301631. Number 66789 is the mould number, the same for every colour.
Is LEGO part 66789 still used in recent sets?
Yes: it appears in sets released in 2026, such as 45522 Computer Science & AI Kit 6-8.
Where can I buy LEGO part 66789 individually?
Single parts 66789 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.