Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Mechanical Engineering since January 2020. Medium accuracy
LEGO 9665 Mechanical Engineering was a 318 piece Dacta set released in 2003. The current value for a new and sealed Mechanical Engineering is estimated at $350, with an average annual growth of approximately 4%. Current used prices for Mechanical Engineering range from $285 to $323, depending on the set's condition, with an average price of $291 for those in good overall condition.

For Sale (New/Sealed)

(US) eBay listing for Mechanical Engineering $339.50
-3.0%
(MX) BrickLink store Bricks Store Mexico $350.00

Sets in Dacta / Technic

9609 Technology Resource Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 1,718
Availability Retired
9609 LEGO Dacta Technic Technology Resource Set
Value $1,115.17

1034 Teachers Resource Set

Theme / Subtheme Dacta / Technic
Year 1985
Pieces 1,501
Availability Retired
1034 LEGO Dacta Technic Teachers Resource Set
Retail $129.00
Value $883.10
Growth  +584.6%
Annual growth 6.2%

9701 Control Lab Building Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 557
Availability Retired
9701 LEGO Dacta Technic Control Lab Building Set
Retail $149.00
Value $391.24
Growth  +162.6%
Annual growth 3.3%

9700 Technic Control Centre

Theme / Subtheme Dacta / Technic
Year 1987
Pieces / Minifigs 471 / 4
Availability Retired
9700 LEGO Dacta Technic Control Centre
Value $379.43

1092 Technic Control II

Theme / Subtheme Dacta / Technic
Year 1986
Pieces 463
Availability Retired
1092 LEGO Dacta Technic Control II
Retail $191.00
Value $261.67
Growth  +37.0%

9618 Structures Set

Theme / Subtheme Dacta / Technic
Year 1997
Pieces 463
Availability Retired
9618 LEGO Dacta Technic Structures Set
Retail $79.90
Value $123.51
Growth  +54.6%
Annual growth 1.6%

1090 Technic Control 1

Theme / Subtheme Dacta / Technic
Year 1986
Pieces 404
Availability Retired
1090 LEGO Dacta Technic Control 1
Retail $139.99
Value $197.97
Growth  +41.4%

1032 Technic II Powered Machines Set

Theme / Subtheme Dacta / Technic
Year 1984
Pieces 278
Availability Retired
1032 LEGO Dacta Technic II Powered Machines Set
Retail $79.99
Value $178.05
Growth  +122.6%
Annual growth 1.8%

9630 Simple Mechanisms Set

Theme / Subtheme Dacta / Technic
Year 1997
Pieces 277
Availability Retired
9630 LEGO Dacta Technic Simple Mechanisms Set
Retail $79.99
Value $227.50
Growth  +184.4%
Annual growth 3.8%

9605 4.5V Technic Resource Set

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 268
Availability Retired
9605 LEGO Dacta 4.5V Technic Resource Set
Retail $74.99
Value $453.59
Growth  +504.9%
Annual growth 6.2%

9702 Control System Building Set

Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 221 / 2
Availability Retired
9702 LEGO Dacta Technic Control System Building Set
Value $233.17

1030 Technic I Simple Machines Set

Theme / Subtheme Dacta / Technic
Year 1985
Pieces 179
Availability Retired
1030 LEGO Dacta Technic I Simple Machines Set
Retail $74.99
Value $123.81
Growth  +65.1%
Annual growth 1.3%

9604 Technic and Pneumatic Elements

Theme / Subtheme Dacta / Technic
Year 1992
Pieces 124
Availability Retired
9604 LEGO Dacta Technic and Pneumatic Elements
Retail $36.95
Value $64.52
Growth  +74.6%
Annual growth 2.4%

1038 Universal Buggy

Theme / Subtheme Dacta / Technic
Year 1985
Pieces 119
Availability Retired
1038 LEGO Dacta Technic Universal Buggy
Value $67.57

9937 Small Chain Links

Theme / Subtheme Dacta / Technic
Year 1998
Pieces 108
Availability Retired
9937 LEGO Dacta Technic Small Chain Links
Retail $7.49
Value $13.80
Growth  +84.2%
Annual growth 2.5%

9617 Introducing Air Power

Theme / Subtheme Dacta / Technic
Year 1997
Pieces 89
Availability Retired
9617 LEGO Dacta Technic Introducing Air Power
Retail $29.99
Value $163.87
Growth  +446.4%
Annual growth 6.3%

9614 Pulleys Mini Set

Theme / Subtheme Dacta / Technic
Year 1993
Pieces 77
Availability Retired
9614 LEGO Dacta Technic Pulleys Mini Set
Retail $14.99
Value $32.29
Growth  +115.4%
Annual growth 2.4%

9616 Wheels and Axles Set

Theme / Subtheme Dacta / Technic
Year 1997
Pieces / Minifigs 74 / 1
Availability Retired
9616 LEGO Dacta Technic Wheels and Axles Set
Retail $14.99
Value $29.99
Growth  +100.1%
Annual growth 3.3%

9610 Gears Set

Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 67 / 2
Availability Retired
9610 LEGO Dacta Technic Gears Set
Retail $12.50
Value $24.74
Growth  +97.9%
Annual growth 4.2%

9612 Levers Set

Theme / Subtheme Dacta / Technic
Year 1993
Pieces 62
Availability Retired
9612 LEGO Dacta Technic Levers Set
Retail $14.99
Value $30.89
Growth  +106.1%
Annual growth 2.8%

9938 Conveyor Belt Links

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 38
Availability Retired
9938 LEGO Dacta Technic Conveyor Belt Links
Retail $6.25
Value $12.78
Growth  +104.5%
Annual growth 8.3%

9848 9V Lamps

Theme / Subtheme Dacta / Technic
Year 1997
Pieces 9
Availability Retired
9848 LEGO Dacta Technic 9V Lamps
Retail $2.99
Value $32.08
Growth  +972.9%
Annual growth 7.2%

9615 Motor Add-On for Simple Mechanisms

Theme / Subtheme Dacta / Technic
Year 1997
Pieces 3
Availability Retired
9615 LEGO Dacta Technic Motor Add-On for Simple Mechanisms
Retail $31.99
Value $44.68
Growth  +39.7%
Annual growth 1.6%

9751 Control Lab Serial Interface & Adapter

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 2
Availability Retired
9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter
Value $182.19

9876 Large Turntables

Theme / Subtheme Dacta / Technic
Year 1992
Pieces 2
Availability Retired
9876 LEGO Dacta Technic Large Turntables
Retail $8.75
Value $18.16
Growth  +107.5%
Annual growth 3.6%