LEGO 7720
Diesel Freight Train Set, battery

LEGO 7720 Diesel Freight Train Set, battery box image
Set number
7720
Theme
4.5V
Pieces
428 pcs
Year
1980
Used & parts
See price history & best time to buy

Prices may vary — please check each store. Links may include affiliate (advertising) links.

How many parts to go?
Can you build this from what you own?
Just pick the sets you own — see this set's completion rate and missing parts instantly.
① Tap the sets you own (pick a few)
② Or add by number (optional)

“Diesel Freight Train Set, battery” is LEGO® “4.5V” theme set number 7720. Released in 1980, it has 428 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 101 types

Color split (most first)
Black×124
Red×92
Light Gray×83
Yellow×50
Dark Gray×40
Trans-Clear×6
Trans-Red×6
Trans-Yellow×6
Blue×5
White×3
[No Color/Any Color]×1
Main parts (most used first)
767 Train Track Sleeper Plate 2 x 8 without Cable Grooves
Dark Gray · ×40
3229b Vehicle Track, Train, Slotted Rail Curved Outside
Light Gray · ×16
3230b Vehicle Track, Train, Slotted Rail Curved Inside
Light Gray · ×16
3665 Slope Inverted 45° 2 x 1
Black · ×16
3666 Plate 1 x 6
Black · ×15
3005 Brick 1 x 1
Red · ×14
3004 Brick 1 x 2
Yellow · ×11
3297 Slope 33° 3 x 4
Light Gray · ×11
3004 Brick 1 x 2
Red · ×8
3005 Brick 1 x 1
Yellow · ×8
3009 Brick 1 x 6
Black · ×8
3024 Plate 1 x 1
Black · ×8
3228b Vehicle Track, Train, Slotted Rail Straight
Light Gray · ×8
3633 Fence Lattice 1 x 4 x 1
Light Gray · ×8
3794a Plate Special 1 x 2 with 1 Stud without Groove (Jumper)
Black · ×8
3856 Window 1 x 2 x 3 Shutter
Yellow · ×8
4070 Brick Special 1 x 1 with Headlight
Red · ×8
3010 Brick 1 x 4
Red · ×7
3022 Plate 2 x 2
Black · ×6
4023 Train Coupling
Black · ×6
6141 Plate Round 1 x 1 with Solid Stud
Trans-Red · ×6
6141 Plate Round 1 x 1 with Solid Stud
Trans-Yellow · ×6
73092 Magnet Cylindrical
Black · ×6
3710 Plate 1 x 4
Yellow · ×5

More “4.5V” theme sets

Re:GO is an unofficial service and is not affiliated with the LEGO Group. LEGO® is a trademark of the LEGO Group. Data is based on Rebrickable and others.