1. Sets
  2. 1985
  3. Trains
  4. 4.5V / 12V

LEGO 1985 / Trains / 4.5V / 12V Sets

In 1985, LEGO released 6 Trains 4.5V / 12V sets, all of these sets have been retired. For that year, the total price of all retail sets cost $312, today those sets are valued around $5,625, a growth of 1700%.
Most valuable 1985 LEGO Trains 4.5V / 12V set
7745 High-Speed City Express Passenger Train Set $2,074.52
Highest growth 1985 Trains 4.5V / 12V set
7715 Push-Along Passenger Steam Train +2137.28%
Most owned 1985 Trains 4.5V / 12V set
7722 Steam Cargo Train Set
6 sets

7715 Push-Along Passenger Steam Train

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 449 / 5
Availability Retired
7715 LEGO Push-Along Passenger Steam Train
Retail $39.75
Value $889.32
Growth  +2137.3%
Annual growth 4.2%

7722 Steam Cargo Train Set

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 495 / 3
Availability Retired
7722 LEGO Steam Cargo Train Set
Retail $68.50
Value $1,351.81
Growth  +1873.4%
Annual growth 5.3%

7735 Freight Train Set

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 509 / 2
Availability Retired
7735 LEGO Freight Train Set
Retail $72.50
Value $956.27
Growth  +1219.0%
Annual growth 6.2%

7745 High-Speed City Express Passenger Train Set

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 736 / 10
Availability Retired
7745 LEGO High-Speed City Express Passenger Train Set
Retail $96.50
Value $2,074.52
Growth  +2049.8%
Annual growth 6.2%

7817 Crane Wagon

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 147 / 1
Availability Retired
7817 LEGO Trains Crane Wagon
Retail $15.99
Value $198.20
Growth  +1139.5%
Annual growth 3.2%

7835 Road Crossing

Theme / Subtheme Trains / 4.5V / 12V
Year 1985
Pieces / Minifigs 129 / 1
Availability Retired
7835 LEGO Trains Road Crossing
Retail $19.25
Value $155.33
Growth  +706.9%
Annual growth 5.2%

Year Pricing

Retail
$312.49   (for all 6 sets)
New/Sealed
Value
$5,625.45
Growth
+1700.20%
Annual growth
+4.74%
Used
Value
$873.39

Community Stats

The following are the top 6 most owned 1985 Trains 4.5V / 12V sets by LEGO collectors.
#1Steam Cargo Train Set
#2High-Speed City Express Passenger Train Set
#3Road Crossing
#4Push-Along Passenger Steam Train
#5Freight Train Set
#6Crane Wagon

About LEGO Trains 4.5V / 12V

4512V covers the LEGO trains of the 4.5 V and 12 V systems from the 1970s and 1980s. The 4.5 V trains ran on batteries carried in a wagon or tender, while the 12 V trains drew power from conductor rails laid between the running rails, fed by a transformer with a speed control. Until 1980 the track was blue, which gave these years the name of the Blue Era.
1985 LEGO Sets
1985 expanded everyday play in Town—airports, transit, and rescue—alongside incremental growth in Castle and Space. Technic emphasized functional builds with working steering, suspensions, and gear trains, continuing to position the theme as LEGO’s bridge to real-world mechanics.