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 $443.20 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 $944.06
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 1,501
Availability Retired
1034 LEGO Dacta Technic Teachers Resource Set
Retail $129.00
Value $700.69
Growth 443.2%
Annual growth 7.3%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 557
Availability Retired
9701 LEGO Dacta Technic Control Lab Building Set
Retail $149.00
Value $332.59
Growth 123.2%
Annual growth 3.0%
Theme / Subtheme Dacta / Technic
Year 1987
Pieces / Minifigs 471 / 4
Availability Retired
9700 LEGO Dacta Technic Control Centre
Value $290.58
Theme / Subtheme Dacta / Technic
Year 1986
Pieces 463
Availability Retired
1092 LEGO Dacta Technic Control II
Retail $191.00
Value $219.71
Growth 15.0%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 463
Availability Retired
9618 LEGO Dacta Technic Structures Set
Retail $79.90
Value $119.02
Growth 49.0%
Annual growth 1.6%
Theme / Subtheme Dacta / Technic
Year 1986
Pieces 404
Availability Retired
1090 LEGO Dacta Technic Control 1
Retail $139.99
Value $197.06
Growth 40.8%
Annual growth 3.5%
Theme / Subtheme Dacta / Technic
Year 1984
Pieces 278
Availability Retired
1032 LEGO Dacta Technic II Powered Machines Set
Retail $79.99
Value $303.65
Growth 279.6%
Annual growth 3.6%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 277
Availability Retired
9630 LEGO Dacta Technic Simple Mechanisms Set
Retail $79.99
Value $282.77
Growth 253.5%
Annual growth 5.6%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 268
Availability Retired
9605 LEGO Dacta 4.5V Technic Resource Set
Retail $74.99
Value $559.99
Growth 646.8%
Annual growth 7.7%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 221 / 2
Availability Retired
9702 LEGO Dacta Technic Control System Building Set
Value $217.54
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 179
Availability Retired
1030 LEGO Dacta Technic I Simple Machines Set
Retail $74.99
Value $116.66
Growth 55.6%
Annual growth 3.9%
Theme / Subtheme Dacta / Technic
Year 1992
Pieces 124
Availability Retired
9604 LEGO Dacta Technic and Pneumatic Elements
Retail $36.95
Value $98.83
Growth 167.5%
Annual growth 3.3%
Theme / Subtheme Dacta / Technic
Year 1985
Pieces 119
Availability Retired
1038 LEGO Dacta Technic Universal Buggy
Value $88.00
Theme / Subtheme Dacta / Technic
Year 1998
Pieces 108
Availability Retired
9937 LEGO Dacta Technic Small Chain Links
Retail $7.49
Value $13.16
Growth 75.7%
Annual growth 3.3%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 89
Availability Retired
9617 LEGO Dacta Technic Introducing Air Power
Retail $29.99
Value $144.03
Growth 380.3%
Annual growth 6.5%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces 77
Availability Retired
9614 LEGO Dacta Technic Pulleys Mini Set
Retail $14.99
Value $29.34
Growth 95.7%
Annual growth 2.5%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces / Minifigs 74 / 1
Availability Retired
9616 LEGO Dacta Technic Wheels and Axles Set
Retail $14.99
Value $33.15
Growth 121.1%
Annual growth 2.2%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces / Minifigs 67 / 2
Availability Retired
9610 LEGO Dacta Technic Gears Set
Retail $12.50
Value $31.47
Growth 151.8%
Annual growth 3.9%
Theme / Subtheme Dacta / Technic
Year 1993
Pieces 62
Availability Retired
9612 LEGO Dacta Technic Levers Set
Retail $14.99
Value $27.56
Growth 83.9%
Annual growth 4.0%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 38
Availability Retired
9938 LEGO Dacta Technic Conveyor Belt Links
Retail $6.25
Value $21.42
Growth 242.7%
Annual growth 2.4%
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 9
Availability Retired
9848 LEGO Dacta Technic 9V Lamps
Value $36.19
Theme / Subtheme Dacta / Technic
Year 1997
Pieces 3
Availability Retired
9615 LEGO Dacta Technic Motor Add-On for Simple Mechanisms
Retail $31.99
Value $44.65
Growth 39.6%
Annual growth 1.3%
Theme / Subtheme Dacta / Technic
Year 1995
Pieces 2
Availability Retired
9751 LEGO Dacta Technic Control Lab Serial Interface & Adapter
Value $123.75
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%