4.5
(19.994)

LEGO® Set 42121 - "Heavy Duty Excavator" includes the following parts and minifigures

Quick result

Three ways to quickly find your LEGO® part. Choose one of the 3 options.
1

Search

You can find the LEGO® part number at the back of the construction manual.
LEGO® part
2

Show

If you are looking for one or more parts from a LEGO® set, this is the best search option.
parts of LEGO® set
3

Choose

Choose a category to refine your search. Further refine with sub-categories, color and/or dimensions.
a category
Filter
Use the categories or color options below to refine the number of parts found. Depending on the category, you can filter with a sub-category or a size option.

116 products found

Search

Color

LEGO® 6631413 Gear 8 Tooth Type 2
HK$3.34
6x needed
  • LEGO Gear 8 Tooth Type 2
Add to Cart
View or order
LEGO® 6209519 Technic, Axle Pin 3L with Friction Ridges Lengthwise
HK$1.93 HK$2.15
-10%
7x needed
  • LEGO Technic, Axle Pin 3L with Friction Ridges Lengthwise
  • LEGO Technic, Axle Pin 3L with Friction Ridges Lengthwise
Add to Cart
View or order
LEGO® 6029946 Slope 2 x 1 Curved
HK$0.82
1x needed
  • LEGO Slope 2 x 1 Curved
  • LEGO Slope 2 x 1 Curved
  • LEGO Slope 2 x 1 Curved
  • LEGO Slope 2 x 1 Curved
  • LEGO Slope 2 x 1 Curved
Add to Cart
View or order
LEGO® 6327028 Technic, Liftarm 1 x 5 Thin with Axle Holes on…
HK$2.60
2x needed
  • LEGO Technic, Liftarm 1 x 5 Thin with Axle Holes on…
Add to Cart
View or order
LEGO® 6352686 Panel 1 x 2 x 5, Fairing #22 Left
HK$7.49
1x needed
  • LEGO Panel 1 x 2 x 5, Fairing #22 Left
Add to Cart
View or order
LEGO® 6079007 Slope 2 x 2 x 2/3 Curved
HK$2.15
4x needed
  • LEGO Slope 2 x 2 x 2/3 Curved
  • LEGO Slope 2 x 2 x 2/3 Curved
  • LEGO Slope 2 x 2 x 2/3 Curved
Add to Cart
View or order
LEGO® 6282151 Pin Connector with Pin
HK$2.30
5x needed
  • LEGO Pin Connector with Pin
Add to Cart
View or order
LEGO® 6092585 Plate, Modified 1 x 2 with 1 Stud with Groove…
HK$1.04
1x needed
  • LEGO Plate, Modified 1 x 2 with 1 Stud with Groove…
  • LEGO Plate, Modified 1 x 2 with 1 Stud with Groove…
  • LEGO Plate, Modified 1 x 2 with 1 Stud with Groove…
Add to Cart
View or order
LEGO® 6089119 Technic, Axle Pin 3L with Friction Ridges Lengthwise and 2L…
HK$0.74
12x needed
  • LEGO Technic, Axle Pin 3L with Friction Ridges Lengthwise and 2L…
Add to Cart
View or order
LEGO® 6121485 Technic, Pin Connector Round 1L
HK$0.82
6x needed
  • LEGO Technic, Pin Connector Round 1L
Add to Cart
View or order
LEGO® 6183784 Technic, Pin Connector Round 1L
HK$1.04
2x needed
  • LEGO Technic, Pin Connector Round 1L
Add to Cart
View or order
LEGO® 6192309 Plate, Modified 1 x 2 with Pin Hole
HK$1.04
2x needed
  • LEGO Plate, Modified 1 x 2 with Pin Hole
Add to Cart
View or order
LEGO® 6413529 Technic Turntable Large Type 3 Top
HK$21.00
1x needed
  • LEGO Technic Turntable Large Type 3 Top
Add to Cart
View or order
LEGO® 6109285 Technic Turntable Large Type 3 Base
HK$10.46
1x needed
  • LEGO Technic Turntable Large Type 3 Base
  • LEGO Technic Turntable Large Type 3 Base
Add to Cart
View or order
LEGO® 6135014 Pin Connector with Axle
HK$1.04
7x needed
  • LEGO Pin Connector with Axle
Add to Cart
View or order
LEGO® 6268010 Panel 3 x 6 x 3 Nodded
HK$4.75
3x needed
  • LEGO Panel 3 x 6 x 3 Nodded
Add to Cart
View or order
LEGO® 6329052 Panel 3 x 6 x 3 Nodded
HK$12.84
1x needed
  • LEGO Panel 3 x 6 x 3 Nodded
Add to Cart
View or order
LEGO® 6471569 Technic Digger Bucket 4 x 7
HK$10.61 HK$11.80
-10%
1x needed
  • LEGO Technic Digger Bucket 4 x 7
Add to Cart
View or order
LEGO® 241226 Tile 1 x 2 Grille with Groove
HK$0.96
4x needed
  • LEGO Tile 1 x 2 Grille with Groove
  • LEGO Tile 1 x 2 Grille with Groove
  • LEGO Tile 1 x 2 Grille with Groove
Add to Cart
View or order
LEGO® 6135494 Technic, Axle 3 with Stop
HK$2.08
10x needed
  • LEGO Technic, Axle 3 with Stop
  • LEGO Technic, Axle 3 with Stop
Add to Cart
View or order
LEGO® 6273212 Axle Connector 3L
HK$0.89
3x needed
  • LEGO Axle Connector 3L
Add to Cart
View or order
LEGO® 6279875 Technic Pin
HK$0.74
40x needed
  • LEGO Technic Pin
Add to Cart
View or order
LEGO® 6167281 Technic, Axle and Pin Connector Hub with 2 Axles
HK$1.26
1x needed
  • LEGO Technic, Axle and Pin Connector Hub with 2 Axles
  • LEGO Technic, Axle and Pin Connector Hub with 2 Axles
Add to Cart
View or order
LEGO® 302226 Plate 2 x 2
HK$0.89
1x needed
  • LEGO Plate 2 x 2
  • LEGO Plate 2 x 2
Add to Cart
View or order
LEGO® 302324 Plate 1 x 2
HK$0.45
1x needed
  • LEGO Plate 1 x 2
Add to Cart
View or order
LEGO® 303224 Plate 4 x 6
HK$3.86
1x needed
Sold out for now!
  • LEGO Plate 4 x 6
Email notification View or order
LEGO® 4211414 Tile 1 x 2 with Groove
HK$1.71
2x needed
  • LEGO Tile 1 x 2 with Groove
Add to Cart
View or order
LEGO® 307021 Tile 1 x 1 with Groove
HK$0.74
3x needed
  • LEGO Tile 1 x 1 with Groove
  • LEGO Tile 1 x 1 with Groove
Add to Cart
View or order
LEGO® 3200026 Brick 1 x 2 with Holes
HK$1.48
1x needed
  • LEGO Brick 1 x 2 with Holes
Add to Cart
View or order
LEGO® 6013938 Pin 3/4
HK$0.96
5x needed
  • LEGO Pin 3/4
  • LEGO Pin 3/4
  • LEGO Pin 3/4
  • LEGO Pin 3/4
  • LEGO Pin 3/4
  • LEGO Pin 3/4
Add to Cart
View or order
LEGO® 6271150 Liftarm 1 x 11.5 Thick, Bent 3 - 4 -7
HK$2.45
2x needed
  • LEGO Liftarm 1 x 11.5 Thick, Bent 3 - 4 -7
Add to Cart
View or order
LEGO® 6284699 Axle and Pin Connector #1
HK$1.63
1x needed
  • LEGO Axle and Pin Connector #1
  • LEGO Axle and Pin Connector #1
Add to Cart
View or order
LEGO® 6268905 Axle and Pin Connector #6 - 90°
HK$2.52
3x needed
  • LEGO Axle and Pin Connector #6 - 90°
  • LEGO Axle and Pin Connector #6 - 90°
Add to Cart
View or order
LEGO® 6271869 Axle and Pin Connector #2 - 180°
HK$1.48
3x needed
  • LEGO Axle and Pin Connector #2 - 180°
Add to Cart
View or order
LEGO® 6347789 Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
HK$0.96
4x needed
  • LEGO Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
  • LEGO Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
Add to Cart
View or order
LEGO® 6321747 Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
HK$0.67
6x needed
  • LEGO Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
  • LEGO Technic, Pin Long with Friction Ridges Lengthwise and Stop Bush
Add to Cart
View or order
LEGO® 4142865 Technic, Axle 2 Notched
HK$0.52
6x needed
  • LEGO Technic, Axle 2 Notched
Add to Cart
View or order
LEGO® 6170294 Liftarm 1 x 6 Thin
HK$2.60
4x needed
  • LEGO Liftarm 1 x 6 Thin
Add to Cart
View or order
LEGO® 32073194 Technic, Axle 5
HK$0.74
1x needed
  • LEGO Technic, Axle 5
Add to Cart
View or order
LEGO® 6271828 Liftarm 2 x 4 Thick, L-Shape
HK$1.11
6x needed
  • LEGO Liftarm 2 x 4 Thick, L-Shape
  • LEGO Liftarm 2 x 4 Thick, L-Shape
Add to Cart
View or order
LEGO® 6271825 Liftarm 2 x 4 Thick, L-Shape
HK$1.04
2x needed
  • LEGO Liftarm 2 x 4 Thick, L-Shape
  • LEGO Liftarm 2 x 4 Thick, L-Shape
Add to Cart
View or order
LEGO® 6276951 Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
HK$1.26
1x needed
  • LEGO Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
  • LEGO Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
Add to Cart
View or order
LEGO® 6276969 Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
HK$0.89
5x needed
  • LEGO Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
  • LEGO Technic, Axle and Pin Connector Perpendicular 3L with Center Pin…
Add to Cart
View or order
LEGO® 6031962 Technic, Gear 20 Tooth Bevel
HK$6.23
1x needed
  • LEGO Technic, Gear 20 Tooth Bevel
  • LEGO Technic, Gear 20 Tooth Bevel
Add to Cart
View or order
LEGO® 4508553 Technic, Axle 5.5 With Stop
HK$0.74 HK$0.82
-5%
1x needed
  • LEGO Technic, Axle 5.5 With Stop
Add to Cart
View or order
LEGO® 6327162 Liftarm 3 x 5 Thin, L-Shape with Slope
HK$3.56
6x needed
  • LEGO Liftarm 3 x 5 Thin, L-Shape with Slope
  • LEGO Liftarm 3 x 5 Thin, L-Shape with Slope
Add to Cart
View or order
LEGO® 6346517 Technic, Gear 20 Tooth Double Bevel
HK$5.05
1x needed
  • LEGO Technic, Gear 20 Tooth Double Bevel
  • LEGO Technic, Gear 20 Tooth Double Bevel
Add to Cart
View or order
LEGO® 4177431 Technic, Gear 12 Tooth Double Bevel
HK$1.56
3x needed
  • LEGO Technic, Gear 12 Tooth Double Bevel
  • LEGO Technic, Gear 12 Tooth Double Bevel
Add to Cart
View or order
LEGO® 6276835 Liftarm 1 x 9 Thick, Bent 7 - 3
HK$1.48
4x needed
  • LEGO Liftarm 1 x 9 Thick, Bent 7 - 3
  • LEGO Liftarm 1 x 9 Thick, Bent 7 - 3
  • LEGO Liftarm 1 x 9 Thick, Bent 7 - 3
  • LEGO Liftarm 1 x 9 Thick, Bent 7 - 3
Add to Cart
View or order
LEGO® 32278199 Liftarm 1 x 15 Thick
HK$9.05
6x needed
  • LEGO Liftarm 1 x 15 Thick
Add to Cart
View or order
LEGO® 4142135 Liftarm 1 x 5 Thick
HK$1.04
5x needed
  • LEGO Liftarm 1 x 5 Thick
Add to Cart
View or order
LEGO® 4153707 Liftarm 1 x 3 Thick
HK$1.04
5x needed
  • LEGO Liftarm 1 x 3 Thick
  • LEGO Liftarm 1 x 3 Thick
  • LEGO Liftarm 1 x 3 Thick
Add to Cart
View or order
LEGO® 4142822 Liftarm 1 x 3 Thick
HK$1.78
2x needed
  • LEGO Liftarm 1 x 3 Thick
  • LEGO Liftarm 1 x 3 Thick
  • LEGO Liftarm 1 x 3 Thick
Add to Cart
View or order
LEGO® 4495934 Liftarm 1 x 7 Thick
HK$1.56
4x needed
  • LEGO Liftarm 1 x 7 Thick
  • LEGO Liftarm 1 x 7 Thick
Add to Cart
View or order
LEGO® 4495931 Liftarm 1 x 7 Thick
HK$1.78
1x needed
  • LEGO Liftarm 1 x 7 Thick
  • LEGO Liftarm 1 x 7 Thick
Add to Cart
View or order
LEGO® 6028107 Liftarm 1 x 11 Thick
HK$3.49
2x needed
  • LEGO Liftarm 1 x 11 Thick
Add to Cart
View or order
LEGO® 4603472 Liftarm 1 x 11 Thick
HK$2.97
5x needed
  • LEGO Liftarm 1 x 11 Thick
Add to Cart
View or order
LEGO® 4144022 Liftarm 3 x 5 Thick, L-Shape
HK$1.71
3x needed
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
Add to Cart
View or order
LEGO® 4142823 Liftarm 3 x 5 Thick, L-Shape
HK$1.04
5x needed
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
  • LEGO Liftarm 3 x 5 Thick, L-Shape
Add to Cart
View or order
LEGO® 6321305 Technic, Pin Long without Friction Ridges Lengthwise
HK$0.74
4x needed
  • LEGO Technic, Pin Long without Friction Ridges Lengthwise
  • LEGO Technic, Pin Long without Friction Ridges Lengthwise
Add to Cart
View or order
LEGO® 362321 Plate 1 x 3
HK$0.89
1x needed
  • LEGO Plate 1 x 3
  • LEGO Plate 1 x 3
  • LEGO Plate 1 x 3
Add to Cart
View or order
LEGO® 370526 Technic, Axle 4
HK$0.82
6x needed
  • LEGO Technic, Axle 4
Add to Cart
View or order
LEGO® 6130002 Technic, Axle 6
HK$1.93
1x needed
  • LEGO Technic, Axle 6
Add to Cart
View or order
LEGO® 371024 Plate 1 x 4
HK$0.82
1x needed
  • LEGO Plate 1 x 4
Add to Cart
View or order
LEGO® 6275844 Technic, Bush
HK$0.89
2x needed
  • LEGO Technic, Bush
  • LEGO Technic, Bush
Add to Cart
View or order
LEGO® 4666579 Technic, Axle Pin without Friction Ridges Lengthwise
HK$0.67
2x needed
  • LEGO Technic, Axle Pin without Friction Ridges Lengthwise
  • LEGO Technic, Axle Pin without Friction Ridges Lengthwise
Add to Cart
View or order
LEGO® 6047885 Technic, Link Tread
HK$1.93
90x needed
  • LEGO Technic, Link Tread
  • LEGO Technic, Link Tread
  • LEGO Technic, Link Tread
  • LEGO Technic, Link Tread
  • LEGO Technic, Link Tread
  • LEGO Technic, Link Tread
Add to Cart
View or order
LEGO® 6265644 Liftarm 1 x 3 x 3 Thick, Pin Connector Block
HK$7.35
3x needed
  • LEGO Liftarm 1 x 3 x 3 Thick, Pin Connector Block
Add to Cart
View or order
LEGO® 6001831 Liftarm 1 x 9 Thick
HK$3.49
1x needed
  • LEGO Liftarm 1 x 9 Thick
Add to Cart
View or order
LEGO® 4645732 Liftarm 1 x 9 Thick
HK$3.19
4x needed
  • LEGO Liftarm 1 x 9 Thick
Add to Cart
View or order
LEGO® 614101 Plate 1 x 1 Round
HK$0.37
5x needed
  • LEGO Plate 1 x 1 Round
  • LEGO Plate 1 x 1 Round
Add to Cart
View or order
LEGO® 6338428 Liftarm 1 x 2 Thin
HK$2.08
10x needed
  • LEGO Liftarm 1 x 2 Thin
  • LEGO Liftarm 1 x 2 Thin
  • LEGO Liftarm 1 x 2 Thin
Add to Cart
View or order
LEGO® 4211889 Technic, Axle and Pin Connector Perpendicular Double Split
HK$3.04
4x needed
Sold out for now!
  • LEGO Technic, Axle and Pin Connector Perpendicular Double Split
  • LEGO Technic, Axle and Pin Connector Perpendicular Double Split
Email notification View or order
LEGO® 6323407 Sticker for Set 42121
HK$10.39
1x needed
  • LEGO Sticker for Set 42121
Add to Cart
View or order
LEGO® 6271167 Technic, Bush 1/2 Smooth
HK$0.89
6x needed
  • LEGO Technic, Bush 1/2 Smooth
Add to Cart
View or order
1 2
...
...