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871 LEGO Technic Supplementary Set thumbnail image

871 LEGO Technic Supplementary Set
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871 LEGO Technic Supplementary Set
  • Supplementary Set thumbnail

LEGO 871 Supplementary Set is a vintage Technic set from 1977 valued at $99 for new and sealed sets, up 889% from an original retail price of $9.99. Annual appreciation has averaged 4.79% since release. Used copies are valued between $27 and $38 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Supplementary Set since January 2018. Very high accuracy
LEGO 871-1 Supplementary Set is a Technic Supplementary set released in 1977, containing 78 pieces. It is an assortment pack of early Technic elements, including black axles from 2L to 12L, bushes, gears, pistons, connectors, pins, a universal joint, and yellow Technic bricks and plates with holes. The set was designed to expand existing Technic models with additional mechanical and structural parts. It is the European version of set 961 Parts Pack.

A new and sealed Supplementary Set is currently valued at around $99, with annual growth of approximately 3%. The average used price is $28 for those in good overall condition. Based on current trends, this set could be valued near $104 within the next year. New and sealed listings currently range from $88 to $102.
All regions

For Sale (New/Sealed)

 (ES) New in sealed box. This box was produced without seals. Earlier versions 1977-79 Exc... $86.78
-12.2%
(IT) 802 SYSTEM DENMARK 1970'S GEAR SUPPLEMENTARY SET 802 NEW/NEW $95.37
-3.5%
(NZ) Mint in sealed box original price sticker, please refer to photo $103.04
+4.3%
All regions

For Sale (Used)

 (UK) Used - Complete with box ad red tray.Box is a bit squashed. $25.40
(US) Used - eBay listing for 871 Supplementary Set $25.99
(FR) Used - with box $26.25
(CA) Used - Verified complete, with box and instruction. Box is imperfect 6/10 but present... $29.07
(UK) Used condition. Box squashed + has tape on it(the front) + Price tag. No Manual?(don'... $36.29
(FR) Used - with box / new condition $36.75

Related Sets

961 Parts Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 78
Availability Retired
961 LEGO Technic Parts Pack
Retail $5.00
Value $69.66
Growth  +1293.2%
Annual growth 7.5%

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 $43.46
Growth  +262.2%
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 $113.33
Growth  +2418.4%
Annual growth 7.1%

872 Two Gear Blocks

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 77
Availability Retired
872 LEGO Technic Two Gear Blocks
Retail $19.50
Value $35.35
Growth  +81.3%
Annual growth 3.3%

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 $52.13
Growth  +30.4%

8720 9V Motor Set

Theme / Subtheme Technic / Supplementary
Year 1990
Pieces 57
Availability Retired
8720 LEGO Technic 9V Motor Set
Retail $35.99
Value $75.30
Growth  +109.2%
Annual growth 2.5%

878 Piston Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 52
Availability Retired
878 LEGO Technic Piston Parts
Retail $4.50
Value $33.47
Growth  +643.8%
Annual growth 4.4%

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 $28.13
Growth  +462.6%
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 $21.49
Growth  +329.8%
Annual growth 5.3%

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 $19.87
Growth  +297.4%
Annual growth 3.0%

8700 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1982
Pieces 26
Availability Retired
8700 LEGO Technic Power Pack
Retail $26.00
Value $63.22
Growth  +143.2%
Annual growth 1.9%

877 Steering Gear Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 24
Availability Retired
877 LEGO Technic Steering Gear Parts
Retail $3.50
Value $109.47
Growth  +3027.7%
Annual growth 7.6%

870 Technical Motor, 4.5 V

Theme / Subtheme Technic / Supplementary
Year 1977
Pieces 22
Availability Retired
870 LEGO Technical Motor, 4.5 V
Retail $8.99
Value $82.86
Growth  +821.7%
Annual growth 4.6%

880 12 Volt Motor

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 22
Availability Retired
880 LEGO Technic 12 Volt Motor
Retail $19.99
Value $39.99
Growth  +100.1%
Annual growth 5.4%

960 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 22
Availability Retired
960 LEGO Technic Power Pack
Retail $22.50
Value $73.05
Growth  +224.7%
Annual growth 2.5%

8712 Technic Figures

Theme / Subtheme Technic / Supplementary
Year 1988
Pieces / Figures 10 / 3
Availability Retired
8712 LEGO Technic Figures
Retail $8.25
Value $57.52
Growth  +597.2%
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 $99.71
Growth  +1009.1%
Annual growth 3.9%

My Collection

Supplementary Set Reviews

28 reviews
4.7
Collectors
Investors
Technic-Dialog
“This supplementary set from the Lego Technic series contains individual parts with which one could upgrade models at that time, and the instructions for that were included with the models.”
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, 879 Gear Wheels with Chain Links is the most valuable Supplementary set with an estimated new/factory sealed value of $113.
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