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Motor Set 9 V

Motor Set 9 V

8720-1·LEGO·1990·31 parts

Used Avg
$36.20
New Avg
$74.88
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About Motor Set 9 V

Motor Set 9 V (8720-1) is a LEGO LEGO set from 1990 valued at $36.20 on BrickLink. It contains 31 cataloged parts. This set has been retired and is only available on the secondary market.

Seller notes

  • Sealed copies sell for $74.88 vs $36.20 used — a 107% premium. If you have this set new in sealed box (NISB), price it accordingly.

Parts (31)

Electric, Motor 9V 5 x 4 x 2 1/3 with Black Axle and Dark Gray Base
Electric, Motor 9V 5 x 4 x 2 1/3 with Black Axle and Dark Gray Base
Electric 9V Battery Box 4 x 14 x 4 with Red Buttons and Contact Plate with Dark Gray Base (2846 / 2847c00)
Electric 9V Battery Box 4 x 14 x 4 with Red Buttons and Contact Plate with Dark Gray Base (2846 / 2847c00)
Plate 1 x 2
Plate 1 x 2
×4
Technic, Gear 8 Tooth
Technic, Gear 8 Tooth
×2
Technic, Gear 24 Tooth Crown - Not Reinforced
Technic, Gear 24 Tooth Crown - Not Reinforced
Technic, Pin without Friction Ridges
Technic, Pin without Friction Ridges
×4
Technic, Brick 1 x 2 with Hole
Technic, Brick 1 x 2 with Hole
×4
Technic, Brick 1 x 4 with Holes
Technic, Brick 1 x 4 with Holes
×2
Technic, Axle  4L
Technic, Axle 4L
×2
Technic, Axle  6L
Technic, Axle 6L
×2
Technic, Axle  8L
Technic, Axle 8L
Technic, Plate 2 x 4 with 3 Holes
Technic, Plate 2 x 4 with 3 Holes
×2
Plate 1 x 4
Plate 1 x 4
×4
Technic Bush
Technic Bush
×3
Technic, Axle 10L
Technic, Axle 10L
Technic, Plate 2 x 8 with 7 Holes
Technic, Plate 2 x 8 with 7 Holes
Technic, Axle  1L with Pin without Friction Ridges with Round Hole
Technic, Axle 1L with Pin without Friction Ridges with Round Hole
Technic, Brick 1 x 6 with Holes
Technic, Brick 1 x 6 with Holes
×2
Technic, Gear 16 Tooth - Axle Hole with Open Sides
Technic, Gear 16 Tooth - Axle Hole with Open Sides
Technic, Gear 14 Tooth Bevel Thin
Technic, Gear 14 Tooth Bevel Thin
×2
Technic Wedge Belt Wheel (Pulley)
Technic Wedge Belt Wheel (Pulley)
×2
Technic Bush 1/2 Toothed with 4 Interior Ridges
Technic Bush 1/2 Toothed with 4 Interior Ridges
×5
Technic, Axle  3L
Technic, Axle 3L
Technic, Gear Worm Screw, Long
Technic, Gear Worm Screw, Long
Electric Plate 2 x 4 with Contacts
Electric Plate 2 x 4 with Contacts
Electric Plate 2 x 8 with Contacts
Electric Plate 2 x 8 with Contacts
Electric, Wire with Brick 2 x 2 x 2/3 Ends 164L
Electric, Wire with Brick 2 x 2 x 2/3 Ends 164L
Rubber Band Medium (Square Cross Section) Thin Cut
Rubber Band Medium (Square Cross Section) Thin Cut
×2
Technic, Gear 24 Tooth with 3 Axle Holes
Technic, Gear 24 Tooth with 3 Axle Holes
Rubber Band Large (Square Cross Section)
Rubber Band Large (Square Cross Section)
Rubber Belt Medium (Round Cross Section) - Approx. 3 x 3
Rubber Belt Medium (Round Cross Section) - Approx. 3 x 3

Common questions about Motor Set 9 V

How much is LEGO Motor Set 9 V (8720-1) worth?

Motor Set 9 V sells for an average of $36.20 used and $74.88 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

Is LEGO Motor Set 9 V (8720-1) retired?

Yes, Motor Set 9 V was released in 1990 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.

How do I check if my Motor Set 9 V set is complete?

Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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