# LEGO 71390-1 — Reznor Knockdown Expansion Set (2021)

Source: https://www.brickmissing.com/sets/71390-1-reznor-knockdown-expansion-set
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

Make the LEGO Super Mario universe extra exciting with the Reznor Knockdown Expansion Set (71390). Engage in Reznor-spinning, Blue Toad-rescuing action! This set features buildable rotating platforms that spin when LEGO Mario and/or LEGO Luigi (figures not included) are placed on the connected stand. Use the Skewer to knock the 2 Reznor figures off the platforms and rescue the Blue Toad. Challenge yourself further with a seesawing Grrrol, a ? Block, and a Special Pipe: Speed Run for thrilling speed challenges. Play solo, team up, or compete against a friend with their LEGO Mario or LEGO Luigi figure. The 71360 or 71387 Starter Course is required for play. Collectible LEGO Super Mario characters bring endless fun.

## Set facts

- Set number: 71390-1
- Name: Reznor Knockdown Expansion Set
- Theme: Super Mario › Expansion Set
- Released: 2021
- Pieces: 862
- Distinct part + colour lots: 285
- Build difficulty: advanced
- Repairability: 4.6% of this set's lots are hard to replace (13 of 285 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (285 lots, 862 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 3 | Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] | Black | 10247 | 6061032 | €0,10 |
| 1 | Tile Special 2 x 2 Inverted | Light Bluish Gray | 11203 | 6132886 | €0,10 |
| 4 | Brick Special 1 x 2 with 2 Studs on 1 Side | Red | 11211 | 6019155 | €0,13 |
| 1 | Plate 3 x 3 | Light Bluish Gray | 11212 | 6015347 | €0,12 |
| 3 | Plate Round 6 x 6 with Hole | Medium Nougat | 11213 | 6345302 | €0,41 |
| 6 | Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom | Light Bluish Gray | 11215 | 6028811 | €0,35 |
| 4 | Plate Special 1 x 2 with Pin Hole on Top | Light Bluish Gray | 11458 | 6225230 | €0,10 |
| 8 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Light Bluish Gray | 11477 | 6028813 | €0,06 |
| 4 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Sand Green | 11477 | 6196591 | €0,06 |
| 1 | Tile Round 2 x 2 with Bottom Stud Holder | Light Bluish Gray | 14769 | 6052200 | €0,07 |
| 4 | Tile Round 2 x 2 with Bottom Stud Holder | Black | 14769 | 6070695 | €0,07 |
| 1 | Tile Round 2 x 2 with Bottom Stud Holder | Black | 14769 | 6133844 | €0,07 |
| 1 | Slope Curved 2 x 2 x 2/3 | Red | 15068 | 6105976 | €0,13 |
| 1 | Slope Curved 2 x 2 x 2/3 | Light Bluish Gray | 15068 | 6102357 | €0,13 |
| 2 | Slope Curved 2 x 2 x 2/3 | Bright Green | 15068 | 6138513 | €0,13 |
| 2 | Slope Curved 2 x 2 x 2/3 with Black Mouth, White Eyes print | Light Bluish Gray | 15068pr0052 | 6353855 | — |
| 1 | Plate 2 x 2 with 2 Pins | Dark Bluish Gray | 15092 | 6284702 | €0,24 |
| 1 | Technic Axle 5 with Stop | Reddish Brown | 15462 | 6159763 | €0,11 |
| 8 | Tile Round 2 x 2 with Hole | Dark Bluish Gray | 15535 | 6055313 | €0,07 |
| 1 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | White | 15573 | 6051511 | €0,06 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Dark Bluish Gray | 15573 | 6092572 | €0,06 |
| 4 | Slope 45? 2 x 1 with 2/3 Cutout [New Version] | Dark Bluish Gray | 15672 | 6069164 | €0,05 |
| 4 | Slope 45? 2 x 1 with 2/3 Cutout [New Version] | Light Bluish Gray | 15672 | 6093859 | €0,05 |
| 1 | Brick Round 2 x 2, Pin Holes with Gold Lapels, Dark Blue Trim, and White Undershirt Print | Black | 17485pr9999 | 6309081 | — |
| 1 | Plate Round Half 3 x 6 with 1 x 2 Cutout | Black | 18646 | 6138405 | €0,24 |
| 2 | Plate Special 1 x 2 with Handles on Ends | Light Bluish Gray | 18649 | 6093058 | €0,12 |
| 1 | Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle | Black | 18651 | 6089119 | €0,08 |
| 1 | Technic Pin Connector Round 1L [Beam] | Dark Bluish Gray | 18654 | 6100030 | €0,05 |
| 1 | Technic Pin Connector Round 1L [Beam] | White | 18654 | 6177114 | €0,05 |
| 4 | Plate Special 1 x 2 with Pin Hole Underneath | Red | 18677 | 6168634 | €0,07 |
| 2 | Plate Special 1 x 2 with Pin Hole Underneath | White | 18677 | 6232029 | €0,07 |
| 1 | Fence Spindled 4 x 4 x 2 Quarter Round with 3 Studs | Medium Nougat | 21229 | 6273939 | — |
| 2 | Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] | Trans-Orange | 22388 | 6581704 | €0,07 |
| 6 | Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] | Tan | 22388 | 6249125 | €0,07 |
| 6 | Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side | Light Bluish Gray | 22885 | 6123809 | €0,17 |
| 2 | Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side | Tan | 22885 | 6214334 | €0,17 |
| 2 | Plate Round Half 4 x 8 | Dark Bluish Gray | 22888 | 6141856 | €0,36 |
| 2 | Brick 2 x 2 Corner | Dark Bluish Gray | 2357 | 4211109 | €0,16 |
| 5 | Plate 2 x 2 Corner | Black | 2420 | 242026 | €0,07 |
| 6 | Slope Curved 2 x 1 Inverted | Tan | 24201 | 6251252 | €0,06 |
| 2 | Tile 1 x 4 with Groove | Yellow | 2431 | 243124 | €0,12 |
| 4 | Tile 1 x 4 with Groove | Light Bluish Gray | 2431 | 4211356 | €0,12 |
| 2 | Tile 1 x 4 with Groove | Black | 2431 | 243126 | €0,12 |
| 3 | Tile 1 x 4 with Groove | Medium Nougat | 2431 | 6102998 | €0,12 |
| 5 | Technic Axle 3 with Stop | Reddish Brown | 24316 | 6135494 | €0,07 |
| 2 | Wedge Plate 3 x 3 Cut Corner | Light Bluish Gray | 2450 | 4211361 | €0,12 |
| 2 | Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout | Light Bluish Gray | 24593 | 6249550 | €0,36 |
| 4 | Plate Special 2 x 2 with Pin on Bottom | Dark Tan | 2476a | 6276849 | €0,16 |
| 2 | Plant, Flower, Plate Round 1 x 1 with 5 Petals | Medium Lavender | 24866 | 6209684 | €0,06 |
| 8 | Tile Round 1 x 1 Quarter | Black | 25269 | 6172383 | €0,05 |
| 4 | Tile Round 1 x 1 Quarter | Red | 25269 | 6170390 | €0,05 |
| 2 | Plate Special 1 x 2 Side Handle [Free Ends] | Light Bluish Gray | 2540 | 4211632 | €0,07 |
| 1 | Plate Special 2 x 4 Pin Holes on Bottom Dia. 4.85 | Light Bluish Gray | 26599 | 6176242 | €0,23 |
| 6 | Wedge Plate 2 x 2 Cut Corner | Light Bluish Gray | 26601 | 6186657 | €0,07 |
| 1 | Technic Disc 3 x 3 | Black | 2723 | 4218868 | €0,21 |
| 2 | Tile 4 x 4 Curved, Macaroni | Light Bluish Gray | 27507 | 6163989 | €0,15 |
| 8 | Tile 2 x 2 Curved, Macaroni | Light Bluish Gray | 27925 | 6163990 | €0,08 |
| 4 | Slope 45° 2 x 1 with 2/3 Inverted Cutout and no stud | Light Bluish Gray | 28192 | 6213378 | €0,07 |
| 4 | Slope 45° 2 x 1 with 2/3 Inverted Cutout and no stud | Dark Bluish Gray | 28192 | 6168776 | €0,07 |
| 2 | Arm, Short, with Technic Pin | Light Nougat | 28660 | 6297281 | — |
| 4 | Slope Curved 2 x 1 with Stud Notch Right | Light Bluish Gray | 29119 | 6225142 | €0,07 |
| 4 | Slope Curved 2 x 1 with Stud Notch Left | Light Bluish Gray | 29120 | 6225139 | €0,07 |
| 2 | Brick 2 x 4 | White | 3001 | 300101 | €0,22 |
| 5 | Brick 2 x 2 | Light Bluish Gray | 3003 | 4211387 | €0,13 |
| 1 | Brick 2 x 2 with Face, Surprised Open Mouth print | Light Nougat | 3003pr0160 | 6353857 | — |
| 3 | Brick 1 x 2 | Dark Bluish Gray | 3004 | 4211088 | €0,11 |
| 1 | Brick 1 x 2 | Sand Green | 3004 | 4616581 | €0,11 |
| 2 | Brick 1 x 2 | Bright Green | 3004 | 4647553 | €0,11 |
| 1 | Brick 1 x 2 | Light Bluish Gray | 3004 | 4107736 | €0,11 |
| 2 | Brick 1 x 2 | Light Bluish Gray | 3004 | 4211388 | €0,11 |
| 1 | Brick 1 x 2 with White Question Mark '?' print | Yellow | 3004pr0075 | 6353866 | — |
| 1 | Brick 1 x 1 | Dark Bluish Gray | 3005 | 4211098 | €0,07 |
| 2 | Brick 1 x 1 | Light Bluish Gray | 3005 | 4211389 | €0,07 |
| 1 | Brick 1 x 8 | Dark Bluish Gray | 3008 | 4211099 | €0,24 |
| 1 | Brick 1 x 4 | Light Bluish Gray | 3010 | 4211394 | €0,16 |
| 4 | Brick 1 x 4 | Dark Bluish Gray | 3010 | 4211103 | €0,16 |
| 1 | Brick 1 x 4 | Black | 3010 | 301026 | €0,16 |
| 2 | Brick Special 1 x 2 Palisade [aka Log] | Medium Nougat | 30136 | 4651231 | €0,10 |
| 2 | Brick Special 1 x 4 Palisade [aka Log] | Medium Nougat | 30137 | 4651232 | €0,18 |
| 3 | Plate 2 x 4 | Light Bluish Gray | 3020 | 4211395 | €0,15 |
| 2 | Plate 2 x 4 | Red | 3020 | 302021 | €0,15 |
| 8 | Plate 2 x 4 | Bright Green | 3020 | 6141590 | €0,15 |
| 5 | Plate 2 x 4 | Black | 3020 | 302026 | €0,15 |
| 2 | Plate 2 x 4 | Black | 3020 | 302023 | €0,15 |
| 8 | Plate 2 x 3 | Dark Bluish Gray | 3021 | 4211043 | €0,13 |
| 2 | Plate 2 x 2 | Black | 3022 | 302226 | €0,10 |
| 5 | Plate 2 x 2 | Light Bluish Gray | 3022 | 302228 | €0,10 |
| 1 | Plate 2 x 2 | Black | 3022 | 302223 | €0,10 |
| 4 | Plate 2 x 2 | Light Bluish Gray | 3022 | 4211397 | €0,10 |
| 9 | Plate 1 x 2 | Dark Bluish Gray | 3023 | 4211063 | €0,08 |
| 27 | Plate 1 x 2 | Light Bluish Gray | 3023 | 302328 | €0,08 |
| 2 | Plate 1 x 2 | Red | 3023 | 302321 | €0,08 |
| 9 | Plate 1 x 2 | Dark Brown | 3023 | 6058221 | €0,08 |
| 6 | Plate 1 x 2 | Light Bluish Gray | 3023 | 4211398 | €0,08 |
| 4 | Plate 1 x 2 | Yellow | 3023 | 302324 | €0,08 |
| 6 | Plate 1 x 1 | Tan | 3024 | 4159553 | €0,06 |
| 2 | Plate 1 x 1 | Dark Bluish Gray | 3024 | 4210719 | €0,06 |
| 10 | Plate 1 x 1 | Light Bluish Gray | 3024 | 4211399 | €0,06 |
| 9 | Plate 1 x 1 | Olive Green | 3024 | 6058245 | €0,06 |
| 1 | Plate 4 x 12 | Dark Bluish Gray | 3029 | 4210706 | €0,63 |
| 2 | Plate 2 x 8 | Dark Bluish Gray | 3034 | 4210997 | €0,29 |
| 2 | Plate 2 x 8 | Medium Nougat | 3034 | 6226644 | €0,29 |
| 1 | Plate 2 x 8 | Black | 3034 | 303426 | €0,29 |
| 1 | Plate 4 x 8 | Dark Bluish Gray | 3035 | 4211061 | €0,46 |
| 1 | Slope 45? 2 x 2 | Light Bluish Gray | 3039 | 4211410 | €0,11 |
| 4 | Slope 45° 2 x 1 with Bottom Pin | Light Bluish Gray | 3040b | 4121969 | €0,10 |
| 1 | Brick Special 1 x 4 with 4 Studs on One Side | White | 30414 | 4143254 | €0,18 |
| 1 | Slope 45° 2 x 2 Double | Black | 3043 | 4163373 | €0,15 |
| 2 | Slope 45° 2 x 1 Double / Inverted with Bottom Stud Holder | Light Bluish Gray | 3049d | 4223980 | — |
| 3 | Brick Round 1 x 1 Open Stud | Black | 3062b | 306226 | €0,06 |
| 13 | Brick Round 1 x 1 Open Stud | Dark Bluish Gray | 3062b | 4211090 | €0,06 |
| 1 | Tile 2 x 2 with Stopwatch, Coins print | Yellow | 3068bpr0551 | 6363856 | — |
| 1 | Tile 2 x 2 with 'Start', Three Coins, and Barcode Print (Sticker) | Yellow | 3068bpr9716 | 6354339 | — |
| 2 | Tile 2 x 2 with Grrrol and Barcode Print (Sticker) | Red | 3068bpr9717 | 6360088 | — |
| 1 | Tile 2 x 2 with Reznor and Barcode Print (Sticker) | Light Bluish Gray | 3068bpr9718 | 6354334 | — |
| 1 | Tile 2 x 2 with Reznor and Barcode Print (Sticker) | Light Bluish Gray | 3068bpr9719 | 6354330 | — |
| 1 | Tile 2 x 2 with Speech Bubble with '!' and Barcode Print (Sticker) | Black | 3068bpr9720 | 6354341 | — |
| 1 | Tile 2 x 2 with '?' and Barcode Print (Sticker) | Yellow | 3068bpr9990 | 6315656 | — |
| 1 | Tile 1 x 2 with Groove | Red | 3069b | 306921 | €0,07 |
| 2 | Tile 1 x 2 with Groove | Light Bluish Gray | 3069b | 4211414 | €0,07 |
| 3 | Tile 1 x 2 with Groove | Bright Green | 3069b | 6195258 | €0,07 |
| 6 | Tile 1 x 2 with Groove | Medium Nougat | 3069b | 6021997 | €0,07 |
| 1 | Tile 1 x 2 with Groove | Dark Bluish Gray | 3069b | 4211052 | €0,07 |
| 4 | Tile 1 x 2 with Groove | Black | 3069b | 306926 | €0,07 |
| 4 | Tile 1 x 2 with Groove | Yellow | 3069b | 306924 | €0,07 |
| 4 | Tile 1 x 2 with Groove | Tan | 3069b | 4114026 | €0,07 |
| 2 | Tile 1 x 1 with Groove | Dark Bluish Gray | 3070b | 4210848 | €0,05 |
| 2 | Technic Brick 1 x 2 [2 Pin Holes] | Black | 32000 | 3200026 | €0,10 |
| 1 | Technic Brick 1 x 2 [2 Pin Holes] | White | 32000 | 3200001 | €0,10 |
| 4 | Technic Plate 2 x 6 [5 Holes] | Light Bluish Gray | 32001 | 4211542 | €0,24 |
| 1 | Technic Axle and Pin Connector Angled #6 - 90° | Black | 32014 | 6268905 | €0,22 |
| 2 | Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin | Yellow | 32064a | 6206240 | €0,17 |
| 1 | Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin | Light Bluish Gray | 32064a | 6206248 | €0,17 |
| 1 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Yellow | 32123b | 6271167 | €0,04 |
| 1 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Light Bluish Gray | 32123b | 6271165 | €0,04 |
| 1 | Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole | Yellow | 32184 | 6276974 | €0,12 |
| 1 | Technic Gear 20 Tooth Bevel | Tan | 32198 | 6031962 | €0,56 |
| 1 | Technic Beam 1 x 5 Thick | Black | 32316 | 4142135 | €0,19 |
| 3 | Brick 1 x 2 x 2 with Inside Stud Holder | Dark Bluish Gray | 3245c | 4210978 | €0,13 |
| 1 | Technic Ball Joint | Bright Light Orange | 32474 | 6071608 | €0,12 |
| 1 | Technic Ball Joint | Light Bluish Gray | 32474 | 6070731 | €0,12 |
| 1 | Technic Beam 1 x 3 Thick | Black | 32523 | 4142822 | €0,10 |
| 2 | Technic Beam 1 x 7 Thick | Dark Bluish Gray | 32524 | 4495931 | €0,25 |
| 5 | Technic Beam 1 x 7 Thick | Black | 32524 | 4495935 | €0,25 |
| 2 | Plant, Plate 1 x 1 Round with 3 Leaves | Bright Green | 32607 | 6182261 | €0,06 |
| 4 | Slope Curved 2 x 2 x 2/3 Inverted | White | 32803 | 6210385 | €0,11 |
| 3 | Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side | Dark Bluish Gray | 32952 | 6228923 | €0,10 |
| 1 | Slope 33° 3 x 4 | Black | 3297 | 6435854 | €0,33 |
| 2 | Plate Special 2 x 2 with Only 2 studs | Light Bluish Gray | 33909 | 6212077 | €0,06 |
| 2 | Plate Special 2 x 2 with Only 2 studs | White | 33909 | 6218822 | €0,06 |
| 3 | Plate Special 2 x 2 with Only 2 studs | Red | 33909 | 6219819 | €0,06 |
| 1 | Plate 1 x 8 | Black | 3460 | 346026 | €0,18 |
| 1 | Plate 1 x 8 | Light Bluish Gray | 3460 | 346028 | €0,18 |
| 4 | Plate Special 4 x 4 Splat Gear with 10 Teeth | Dark Bluish Gray | 35443 | 6252371 | €0,45 |
| 3 | Plate Special 1 x 2 Rounded with 2 Open Studs | Dark Bluish Gray | 35480 | 6221607 | €0,07 |
| 4 | Plate Special 1 x 2 Rounded with 2 Open Studs | Tan | 35480 | 6212758 | €0,07 |
| 2 | Brick 1 x 3 | Dark Bluish Gray | 3622 | 4211104 | €0,15 |
| 4 | Plate 1 x 3 | Light Bluish Gray | 3623 | 4211429 | €0,07 |
| 4 | Plate 1 x 3 | Dark Bluish Gray | 3623 | 4211133 | €0,07 |
| 1 | Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] | Black | 3660 | 366026 | — |
| 6 | Slope Inverted 45° 2 x 1 | Dark Bluish Gray | 3665 | 4211096 | €0,11 |
| 5 | Plate 1 x 6 | Dark Bluish Gray | 3666 | 4211056 | €0,17 |
| 8 | Plate 1 x 6 | Black | 3666 | 366626 | €0,17 |
| 6 | Plate 1 x 6 | Light Bluish Gray | 3666 | 4211438 | €0,17 |
| 12 | Technic Pin without Friction Ridges Lengthwise | Light Bluish Gray | 3673 | 4211807 | €0,05 |
| 4 | Bracket 1 x 1 - 1 x 1 | Light Bluish Gray | 36841 | 6248078 | €0,05 |
| 1 | Technic Brick 1 x 2 [1 Pin Hole] | Dark Bluish Gray | 3700 | 4211111 | €0,12 |
| 8 | Technic Brick 1 x 2 [1 Pin Hole] | Black | 3700 | 370026 | €0,12 |
| 1 | Technic Brick 1 x 2 [1 Pin Hole] | Light Bluish Gray | 3700 | 4211440 | €0,12 |
| 1 | Technic Brick 1 x 4 [3 Pin Holes] | Light Bluish Gray | 3701 | 4211441 | €0,17 |
| 1 | Technic Brick 1 x 4 [3 Pin Holes] | Black | 3701 | 370126 | €0,17 |
| 1 | Technic Brick 1 x 16 [15 Pin Holes] | Dark Bluish Gray | 3703 | 4256828 | €0,82 |
| 1 | Technic Plate 2 x 4 [3 Holes] | Dark Bluish Gray | 3709 | 4227398 | €0,13 |
| 1 | Technic Plate 2 x 4 [3 Holes] | Black | 3709 | 370926 | €0,13 |
| 5 | Plate 1 x 4 | Light Bluish Gray | 3710 | 4211445 | €0,12 |
| 6 | Plate 1 x 4 | Dark Bluish Gray | 3710 | 4211001 | €0,12 |
| 2 | Plate 1 x 4 | Tan | 3710 | 4113233 | €0,12 |
| 4 | Technic Plate 2 x 8 [7 Holes] | Medium Nougat | 3738 | 6363803 | €0,29 |
| 3 | Wave / Flame Small with Pin | Trans-Orange | 37775 | 6357747 | €0,10 |
| 1 | Plate 2 x 6 | Dark Bluish Gray | 3795 | 4211002 | €0,19 |
| 1 | Plate 2 x 6 | Black | 3795 | 379523 | €0,19 |
| 1 | Plate 2 x 6 | Medium Nougat | 3795 | 6313600 | €0,19 |
| 4 | Plate 2 x 6 | Light Bluish Gray | 3795 | 4211452 | €0,19 |
| 5 | Plate 2 x 10 | Black | 3832 | 383223 | €0,29 |
| 1 | Plate 2 x 10 | Light Bluish Gray | 3832 | 4211462 | €0,29 |
| 1 | Plate 2 x 10 | Dark Bluish Gray | 3832 | 4210678 | €0,29 |
| 2 | Technic Brick 1 x 6 [5 Pin Holes] | Dark Bluish Gray | 3894 | 4210917 | €0,29 |
| 2 | Technic Brick 1 x 6 [5 Pin Holes] | Black | 3894 | 389426 | €0,29 |
| 1 | Hinge Brick 1 x 2 Base | Light Bluish Gray | 3937 | 4211469 | €0,10 |
| 14 | Brick Round 2 x 2 with Axle Hole | Black | 3941 | 614326 | €0,11 |
| 4 | Technic Pin Long without Friction Ridges, with Anti-Roll Notch | Tan | 39888 | 6321305 | €0,08 |
| 3 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Yellow | 4032a | 403224 | €0,06 |
| 1 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | White | 4032a | 403201 | €0,06 |
| 2 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Medium Nougat | 4032a | 6167643 | €0,06 |
| 2 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Black | 4032a | 403226 | €0,06 |
| 9 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Light Bluish Gray | 4032a | 4211475 | €0,06 |
| 2 | Technic Beam 1 x 9 Thick | Light Bluish Gray | 40490 | 6102449 | €0,29 |
| 2 | Brick Special 1 x 1 with Headlight | Bright Green | 4070 | 6314376 | €0,07 |
| 2 | Tile 1 x 8 with Groove | Black | 4162 | 416223 | €0,15 |
| 3 | Plate Special 1 x 4 with 2 Studs with Groove [New Underside] | Light Bluish Gray | 41740 | 6257593 | €0,07 |
| 3 | Technic Pin 1/2 | Light Bluish Gray | 4274 | 4211483 | €0,05 |
| 4 | Slope Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection | Light Bluish Gray | 4287c | 4211489 | €0,15 |
| 1 | Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot | Black | 42924 | 6299413 | €0,10 |
| 3 | Technic Axle Pin with Friction Ridges Lengthwise | Black | 43093 | 4206482 | €0,06 |
| 2 | Support Round 1 x 1 x 6 Solid Pillar | Dark Bluish Gray | 43888 | 4180811 | €0,52 |
| 9 | Bracket 1 x 2 - 2 x 2 | Black | 44728 | 6117973 | €0,10 |
| 2 | Plate Special 1 x 2 [Open O Top Clip] | Light Bluish Gray | 44861 | 6326078 | €0,15 |
| 4 | Brick Arch 1 x 3 | Light Bluish Gray | 4490 | 4645397 | €0,17 |
| 2 | Technic Axle Connector Double Flexible [Rubber] | Black | 45590 | 4198367 | €0,17 |
| 4 | Slope Curved 3 x 1 No Studs | Light Bluish Gray | 50950 | 4251163 | €0,12 |
| 7 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Sand Green | 54200 | 4652205 | €0,06 |
| 2 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Bluish Gray | 54200 | 4504378 | €0,06 |
| 1 | Technic Axle 8 with Stop | Dark Bluish Gray | 55013 | 4499858 | €0,21 |
| 1 | Technic Tread Sprocket Wheel Large 10 Tooth | Light Bluish Gray | 57519 | 6363862 | — |
| 1 | Plate Round Corner 6 x 6 | Dark Bluish Gray | 6003 | 4500517 | €0,51 |
| 2 | Plate Round 4 x 4 with Pin Hole | Dark Bluish Gray | 60474 | 4528323 | €0,17 |
| 2 | Plate Special 1 x 2 with Handle on End [Closed Ends] | Light Bluish Gray | 60478 | 4515369 | €0,06 |
| 1 | Technic Beam 3 x 3 T-Shape Thick | Black | 60484 | 4552347 | €0,18 |
| 2 | Window 1 x 2 x 2 Flat Front | Tan | 60592 | 4578107 | €0,17 |
| 2 | Brick Curved 2 x 4 x 1 1/3 | Light Bluish Gray | 6081 | 4260409 | €0,27 |
| 4 | Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] | Tan | 60897 | 6352222 | €0,08 |
| 1 | Brick 1 x 12 | Dark Bluish Gray | 6112 | 4210798 | €0,39 |
| 12 | Technic Pin with Friction Ridges Lengthwise with No Center Slots | Black | 61332 | 6279875 | €0,06 |
| 1 | Hinge Brick 2 x 2 Top Plate Thin | Black | 6134 | 4124096 | €0,15 |
| 20 | Plate Round 1 x 1 with Solid Stud | Dark Bluish Gray | 6141 | 4210633 | €0,05 |
| 8 | Plate Round 1 x 1 with Solid Stud | Tan | 6141 | 4161734 | €0,05 |
| 5 | Turntable 4 x 4 Square Base, Locking | Light Bluish Gray | 61485 | 6045718 | €0,25 |
| 2 | Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole | White | 6222 | 4203583 | €0,88 |
| 1 | Technic Pin Connector Round [Slotted] | White | 62462 | 6173116 | €0,06 |
| 2 | Tile 1 x 3 | Light Bluish Gray | 63864 | 4558169 | €0,11 |
| 2 | Plate Special 1 x 2 with Clip Horizontal on End | Light Bluish Gray | 63868 | 6319336 | €0,15 |
| 2 | Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] | Black | 65304 | 6321745 | €0,13 |
| 2 | Technic Brick 1 x 1 with Pin Hole | Dark Bluish Gray | 6541 | 4210639 | €0,07 |
| 2 | Plate Special 2 x 4 with Groove and Two Center Studs (Jumper) | Dark Bluish Gray | 65509 | 6307616 | €0,18 |
| 1 | Technic Axle 3 with Stud | Dark Tan | 6587 | 6031821 | €0,10 |
| 1 | Technic Gear 12 Tooth Bevel | Tan | 6589 | 4565452 | €0,10 |
| 5 | Tile 1 x 6 with Groove | Dark Bluish Gray | 6636 | 4210651 | €0,13 |
| 1 | Tile 1 x 6 with Groove | Medium Nougat | 6636 | 6102995 | €0,13 |
| 1 | Tile 1 x 6 with Groove | Tan | 6636 | 4157277 | €0,13 |
| 1 | Pipe 6 x 6 (Warp Pipe) | Yellow | 66787 | 6315114 | — |
| 1 | Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs | Bright Green | 66789 | 6301631 | €0,74 |
| 1 | Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs | Yellow | 66789 | 6314191 | — |
| 1 | Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs | Black | 66789 | 6301629 | — |
| 3 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Black | 66792 | 6308879 | €0,30 |
| 1 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Bright Green | 66792 | 6308875 | €0,30 |
| 5 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Medium Nougat | 66792 | 6308873 | — |
| 1 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Light Bluish Gray | 66792 | 6294703 | €0,30 |
| 2 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Black | 66792 | 6312482 | — |
| 2 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs and 'X' and Barcode Print (Sticker) | Medium Nougat | 66792pr0125 | 6360143 | — |
| 1 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs and Spiked Ram and Barcode Print (Sticker) | Black | 66792pr0127 | 6366020 | — |
| 1 | Brick Special Cube with 2 x 2 Studs on Top, and Blue Circles Print | White | 66855pr0004 | 6353856 | — |
| 1 | Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole | Red | 66906 | 6360104 | €0,11 |
| 1 | Tile Round 3 x 3 with Face, Sharp Teeth, Red Eyes print | Light Bluish Gray | 67095pr0012 | 6363858 | — |
| 1 | Tile 2 x 6 | Light Bluish Gray | 69729 | 6318584 | €0,22 |
| 2 | Tile 2 x 6 | Dark Bluish Gray | 69729 | 6321746 | €0,22 |
| 2 | Bracket 3 x 2 x 1 1/3 with Bottom Stud Holder | Dark Bluish Gray | 73562 | 6395363 | €0,15 |
| 2 | Bracket 1 x 1 - 1 x 2 Inverted | White | 73825 | 6337079 | €0,10 |
| 2 | Plate 2 x 3 with 1 x 1 Cutout | Medium Nougat | 73831 | 6336665 | €0,25 |
| 4 | Plate 2 x 3 with 1 x 1 Cutout | Dark Brown | 73831 | 6336664 | €0,25 |
| 1 | Plate Round Corners Double 4 x 8 with 2 x 2 Cutout and 2 x 8 Raised Studs, Reduces Nubs | Bright Green | 73832 | 6340682 | €0,81 |
| 2 | Bracket 5 x 2 x 2 1/3 with Holes, Inside Stud Holder | Black | 76766 | 6171066 | €0,41 |
| 2 | Plate Round Corners 4 x 4 x 2/3 Circle with 2 x 2 Opening | Dark Bluish Gray | 79387 | 6361035 | — |
| 2 | Plate Round Corners 4 x 4 x 2/3 Circle with 2 x 2 Opening | Yellow | 79387 | 6364059 | — |
| 12 | Bracket 1 x 1 - 1 x 2 | Light Bluish Gray | 79389 | 6362975 | €0,10 |
| 4 | Tile 3 x 3 Curved, Macaroni | Olive Green | 79393 | 6362965 | €0,28 |
| 1 | Feet, 2 x 2 x 2/3, Front Left Foot Forward with 4 Studs on Top | Reddish Brown | 79750 | 6364060 | — |
| 8 | Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] | Light Bluish Gray | 85080 | 4567448 | €0,10 |
| 2 | Slope 30? 1 x 2 x 2/3 | Black | 85984 | 4548180 | €0,07 |
| 1 | Tile 2 x 4 with Groove | Tan | 87079 | 6122047 | €0,16 |
| 2 | Tile 2 x 4 with Groove | Black | 87079 | 4560182 | €0,16 |
| 4 | Technic Axle 4 with Stop | Dark Bluish Gray | 87083 | 6083620 | €0,07 |
| 1 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Black | 87580 | 4565323 | €0,10 |
| 1 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Red | 87580 | 6126048 | €0,07 |
| 2 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Dark Bluish Gray | 87580 | 6126083 | €0,07 |
| 1 | Plate 2 x 14 | Dark Bluish Gray | 91988 | 6000970 | €0,41 |
| 3 | Plate 2 x 14 | Light Bluish Gray | 91988 | 4662161 | €0,41 |
| 2 | Brick Arch 1 x 6 Raised Arch | Light Bluish Gray | 92950 | 4618874 | €0,19 |
| 4 | Slope Curved 4 x 1 Double with No Studs | Light Bluish Gray | 93273 | 4622803 | €0,15 |
| 1 | Brick and Axle Separator v2.0 | Orange | 96874 | 4654448 | — |
| 3 | Tile Round 1 x 1 | Dark Tan | 98138 | 6322841 | €0,04 |
| 5 | Tile Round 1 x 1 | Light Bluish Gray | 98138 | 6284071 | €0,04 |
| 1 | Tile Round 1 x 1 | Red | 98138 | 6284574 | €0,04 |
| 2 | Brick Special 1 x 2 with Masonry Brick Profile | Light Bluish Gray | 98283 | 6000066 | €0,13 |
| 11 | Bracket 1 x 2 - 2 x 2 Inverted | Light Bluish Gray | 99207 | 4654580 | €0,10 |
| 1 | Bracket 1 x 2 - 2 x 2 Inverted | Yellow | 99207 | 6208753 | €0,10 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/71390-1-reznor-knockdown-expansion-set
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/71390-1-reznor-knockdown-expansion-set