Set Value (New/Sealed)

This represents the current new/sealed value of the set Mechanical Engineering since January 2003. Medium accuracy
LEGO 9665 Mechanical Engineering was a 318 piece Dacta set released in 2003.
Mechanical Engineering is an extremely rare LEGO set these days as we have not seen set 9665-1 currently for sale online or in the hundreds of retail stores good/new condition in over 2 years. Because of the rarity of this hard to find set the current estimated value of $447.42 might actually be much lower than the true value assuming this set can be found for sale.

Sets in Dacta / Technic

Theme / Subtheme Dacta / Technic
Year 1995
Pieces 1,718
Availability Retired
9609 LEGO Dacta Technic Technology Resource Set
Value $991.33
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 1,501
Availability Retired
1034 LEGO Dacta Technic Teachers Resource Set
Retail $129.00
Value $1,001.99
Growth 676.7%
Annual growth 7.6%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 557
Availability Retired
9701 LEGO Dacta Technic Control Lab Building Set
Retail $149.00
Value $345.21
Growth 131.7%
Annual growth 3.0%
Theme / Subtheme Dacta / Technic
Year 1987
Pieces / Minifigs 471 / 4
Availability Retired
9700 LEGO Dacta Technic Control Centre
Value $302.08
Theme / Subtheme Dacta / Technic
Year 1986
Pieces 463
Availability Retired
1092 LEGO Dacta Technic Control II
Retail $191.00
Value $274.99
Growth 44.0%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 463
Availability Retired
9618 LEGO Dacta Technic Structures Set
Retail $79.90
Value $119.65
Growth 49.7%
Annual growth 1.6%
Theme / Subtheme Dacta / Technic
Year 1986
Pieces 404
Availability Retired
1090 LEGO Dacta Technic Control 1
Retail $139.99
Value $231.85
Growth 65.6%
Annual growth 2.3%
Theme / Subtheme Dacta / Technic
Year 1984
Pieces 278
Availability Retired
1032 LEGO Dacta Technic II Powered Machines Set
Retail $79.99
Value $250.05
Growth 212.6%
Annual growth 2.0%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 277
Availability Retired
9630 LEGO Dacta Technic Simple Mechanisms Set
Retail $79.99
Value $296.74
Growth 271.0%
Annual growth 4.6%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 268
Availability Retired
9605 LEGO Dacta 4.5V Technic Resource Set
Retail $74.99
Value $563.18
Growth 651.0%
Annual growth 7.5%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 221 / 2
Availability Retired
9702 LEGO Dacta Technic Control System Building Set
Value $230.04
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 179
Availability Retired
1030 LEGO Dacta Technic I Simple Machines Set
Retail $74.99
Value $218.00
Growth 190.7%
Annual growth 1.9%
Theme / Subtheme Dacta / Technic
Year 1992
Pieces 124
Availability Retired
9604 LEGO Dacta Technic and Pneumatic Elements
Retail $36.95
Value $101.17
Growth 173.8%
Annual growth 3.3%
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 119
Availability Retired
1038 LEGO Dacta Technic Universal Buggy
Value $87.11
Theme / Subtheme Dacta / Technic
Year 1998
Pieces 108
Availability Retired
9937 LEGO Dacta Technic Small Chain Links
Retail $7.49
Value $12.16
Growth 62.3%
Annual growth 2.6%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 89
Availability Retired
9617 LEGO Dacta Technic Introducing Air Power
Retail $29.99
Value $146.73
Growth 389.3%
Annual growth 6.3%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces 77
Availability Retired
9614 LEGO Dacta Technic Pulleys Mini Set
Retail $14.99
Value $30.39
Growth 102.7%
Annual growth 2.1%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces / Minifigs 74 / 1
Availability Retired
9616 LEGO Dacta Technic Wheels and Axles Set
Retail $14.99
Value $31.12
Growth 107.6%
Annual growth 2.8%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 67 / 2
Availability Retired
9610 LEGO Dacta Technic Gears Set
Retail $12.50
Value $25.33
Growth 102.6%
Annual growth 4.0%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces 62
Availability Retired
9612 LEGO Dacta Technic Levers Set
Retail $14.99
Value $32.08
Growth 114.0%
Annual growth 3.7%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 38
Availability Retired
9938 LEGO Dacta Technic Conveyor Belt Links
Retail $6.25
Value $24.17
Growth 286.7%
Annual growth 3.1%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 9
Availability Retired
9848 LEGO Dacta Technic 9V Lamps
Value $38.36
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 3
Availability Retired
9615 LEGO Dacta Technic Motor Add-On for Simple Mechanisms
Retail $31.99
Value $44.84
Growth 40.2%
Annual growth 1.3%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 2
Availability Retired
9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter
Value $129.92
Theme / Subtheme Dacta / Technic
Year 1992
Pieces 2
Availability Retired
9876 LEGO Dacta Technic Large Turntables
Retail $8.75
Value $17.98
Growth 105.5%
Annual growth 3.7%