1. Sets
  2. 1975
  3. Trains
  4. 4.5V / 12V

LEGO 1975 / Trains / 4.5V / 12V Sets

In 1975, 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 $49, today those sets are valued around $4,035, a growth of 8111%.
Most valuable 1975 LEGO Trains 4.5V / 12V set
182 Train Set with Motor $1,439.71
Highest growth 1975 Trains 4.5V / 12V set
133 Locomotive +25474.74%
Most owned 1975 Trains 4.5V / 12V set
148 Central Station
6 sets

133 Locomotive

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces 87
Availability Retired
133 LEGO Trains Locomotive
Retail $2.89
Value $739.11
Growth  +25474.7%
Annual growth 11.5%

134 Mobile Crane and Wagon

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces 86
Availability Retired
134 LEGO Trains Mobile Crane and Wagon
Retail $2.49
Value $428.02
Growth  +17089.6%
Annual growth 4.7%

136 Tanker Wagon

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces 83
Availability Retired
136 LEGO Trains Tanker Wagon
Retail $1.89
Value $207.59
Growth  +10883.6%
Annual growth 9.6%

137-2 Passenger Sleeping Car

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces 82
Availability Retired
137-2 LEGO Trains Passenger Sleeping Car
Retail $1.89
Value $321.56
Growth  +16913.8%
Annual growth 10.6%

148 Central Station

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces / Minifigs 293 / 5
Availability Retired
148 LEGO Trains Central Station
Retail $19.99
Value $898.98
Growth  +4397.1%
Annual growth 7.8%

182 Train Set with Motor

Theme / Subtheme Trains / 4.5V / 12V
Year 1975
Pieces 369
Availability Retired
182 LEGO Train Set with Motor
Retail $19.99
Value $1,439.71
Growth  +7102.2%
Annual growth 8.8%

Year Pricing

Retail
$49.14   (for all 6 sets)
New/Sealed
Value
$4,034.97
Growth
+8111.17%
Annual growth
+8.30%
Used
Value
$412.22

Community Stats

The following are the top 6 most owned 1975 Trains 4.5V / 12V sets by LEGO collectors.
#1Central Station
#2Train Set with Motor
#3Tanker Wagon
#4Locomotive
#5Passenger Sleeping Car
#6Mobile Crane and Wagon

About LEGO Trains 4.5V / 12V

In 1972 LEGO released the 4.5V and 12V train sets as part of the Blue Era which was named because of the rail color. These train sets used additional conductor rails mounted between the standard 4.5V rails and 12V motors contained in the same housings as the 4.5V motors, but with additional metal contacts attached to the bottom of the housings.
1975 LEGO Sets
1975 expanded Basic Building Sets and introduced more systematic, idea-led boxes. Proto-minifigures—small, faceless figures with single-piece legs—appeared in town and train sets, foreshadowing the 1978 minifigure. LEGOLAND-branded sets emphasized construction vehicles and realistic machinery, reinforcing everyday play before the arrival of dedicated Space and Castle themes.