1. Sets
  2. Technic
  3. Supplementary
870 LEGO Technical Motor, 4.5 V thumbnail image

870 LEGO Technical Motor, 4.5 V
Images 1
870 LEGO Technical Motor, 4.5 V
  • Technical Motor, 4.5 V thumbnail

LEGO 870 Technical Motor, 4.5 V is a vintage Technic set from 1977 valued at $82 for new and sealed sets, up 809% from an original retail price of $8.99. Annual appreciation has averaged 4.61% since release. On the used market, values range from $42 to $59 based on condition.

Set Value (New/Sealed)

This represents the current new/sealed value of the set Technical Motor, 4.5 V since January 1977. Medium accuracy
LEGO 870-1 Technical Motor, 4.5 V is a Technic Supplementary set released in 1977, containing 22 pieces. The set includes a 4.5V battery box, motor, rubber band, axles, gears, a steering pulley, an electric wire with connectors, Technic bricks, and plates with holes. It was designed as a motorization pack for early Technic models, allowing builders to add powered functions using the 4.5V system. This version was released in Europe and corresponds to set 960 Power Pack.

A new and sealed Technical Motor, 4.5 V is currently valued at around $82, with annual growth of approximately 5%, which is higher than other Supplementary sets. The average used price is $49 for those in good overall condition. Based on current trends, this set could be valued near $85 within the next year.
Technical Motor, 4.5 V has become a rare vintage set, as set 870-1 has not been seen for sale in new/good condition online or in retail for over one year. Its actual value is likely above the current estimate. The last brand new Technical Motor, 4.5 V was sold on eBay.

For Sale (New/Sealed)

There are currently no new/sealed listings available for 870 Technical Motor, 4.5 V at this time.
All regions

For Sale (Used)

 (UK) Used - Complete with instructions, no box. Tested and working. $38.10
(US) Used - eBay listing for 870 Technical Motor, 4.5 V $42.40
(AU) Used set in very good condition 100% complete, but no instructions or box. $42.83
(UK) Used - 100%, original vintage parts in great condition, found complete in a small 70'... $44.39
(NL) Used - 100% complete. With instructions. With box. Tested and working. (No battery's ... $47.25
(US) Used - Complete in good condition. Includes box, tray and instructions. Photo is actu... $54.00

Related Sets

960 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 22
Availability Retired
960 LEGO Technic Power Pack
Retail $22.50
Value $70.94
Growth  +215.3%
Annual growth 2.4%

Sets in Technic / Supplementary

8710 Technical Elements

Theme / Subtheme Technic / Supplementary
Year 1981
Pieces 124
Availability Retired
8710 LEGO Technical Elements
Retail $12.00
Value $43.01
Growth  +258.4%
Annual growth 3.2%

879 Gear Wheels with Chain Links

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 87
Availability Retired
879 LEGO Technic Gear Wheels with Chain Links
Retail $4.50
Value $110.76
Growth  +2361.3%
Annual growth 7.1%

871 Supplementary Set

Theme / Subtheme Technic / Supplementary
Year 1977
Pieces 78
Availability Retired
871 LEGO Technic Supplementary Set
Retail $9.99
Value $115.35
Growth  +1054.7%
Annual growth 2.7%

961 Parts Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 78
Availability Retired
961 LEGO Technic Parts Pack
Retail $5.00
Value $83.59
Growth  +1571.8%
Annual growth 7.0%

872 Two Gear Blocks

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 77
Availability Retired
872 LEGO Technic Two Gear Blocks
Retail $19.50
Value $31.91
Growth  +63.6%
Annual growth 3.1%

8735 Motor Set, 9 V

Theme / Subtheme Technic / Supplementary
Year 1997
Pieces 60
Availability Retired
8735 LEGO Technic Motor Set, 9 V
Retail $39.99
Value $52.00
Growth  +30.0%

8720 9V Motor Set

Theme / Subtheme Technic / Supplementary
Year 1990
Pieces 57
Availability Retired
8720 LEGO Technic 9V Motor Set
Retail $35.99
Value $80.00
Growth  +122.3%
Annual growth 3.0%

878 Piston Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 52
Availability Retired
878 LEGO Technic Piston Parts
Retail $4.50
Value $33.10
Growth  +635.6%
Annual growth 4.3%

874 Yellow Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
874 LEGO Technic Yellow Beams with Connector Pegs
Retail $5.00
Value $27.83
Growth  +456.6%
Annual growth 3.7%

875 Red Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
875 LEGO Technic Red Beams with Connector Pegs
Retail $5.00
Value $20.68
Growth  +313.6%
Annual growth 4.6%

876 Blue Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
876 LEGO Technic Blue Beams with Connector Pegs
Retail $5.00
Value $43.13
Growth  +762.6%
Annual growth 4.7%

8700 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1982
Pieces 26
Availability Retired
8700 LEGO Technic Power Pack
Retail $26.00
Value $65.00
Growth  +150.0%
Annual growth 1.6%

877 Steering Gear Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 24
Availability Retired
877 LEGO Technic Steering Gear Parts
Retail $3.50
Value $106.83
Growth  +2952.3%
Annual growth 7.5%

880 12 Volt Motor

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 22
Availability Retired
880 LEGO Technic 12 Volt Motor
Retail $19.99
Value $39.66
Growth  +98.4%
Annual growth 5.2%

8712 Technic Figures

Theme / Subtheme Technic / Supplementary
Year 1988
Pieces / Figures 10 / 3
Availability Retired
8712 LEGO Technic Figures
Retail $8.25
Value $56.57
Growth  +585.7%
Annual growth 5.2%

8714 The LEGO Technic Guys

Theme / Subtheme Technic / Supplementary
Year 1993
Pieces / Figures 9 / 3
Availability Retired
8714 The LEGO Technic Guys
Retail $8.99
Value $110.80
Growth  +1132.5%
Annual growth 3.8%

My Collection

Technical Motor, 4.5 V Reviews

27 reviews
4.6
Collectors
Investors
Technic-Dialog
“The 4,5 V Motor from the Lego Technic series was the first supplementary set with an electric motor. This allowed for the models of the time to be equipped with a motor, and therefore have the motor perform some functions.”
Full review at technic-dialog.de

About Technic Supplementary

The LEGO Technic Supplementary theme, active from 1977 to 1997, consists of a variety of accessory sets designed to enhance and expand existing Technic models. These sets provided additional parts, such as gears, wheels, axles, and motors, allowing builders to add more functionality and complexity to their creations. Notable sets in this theme include the "870 Technical Motor," which introduced a battery-powered motor for motorizing models, and the "8710 Supplementary Set," a collection of gears and other essential mechanical parts.

Supplementary consists of 18 sets that ran from 1977 to 1997. As of today, 871 Supplementary Set is the most valuable Supplementary set with an estimated new/factory sealed value of $115.
Read more