1. Sets
  2. 1966
  3. Trains
  4. 4.5V

LEGO 1966 / Trains / 4.5V Sets

In 1966, LEGO released 12 Trains 4.5V sets, all of these sets have been retired. For that year, the total price of all retail sets cost $79, today those sets are valued around $5,782.
Most valuable 1966 LEGO Trains 4.5V set
113-2 Motorized Train Set $3,836.41
Most owned 1966 Trains 4.5V set
150 Straight Track
12 sets

100 4.5V Motor with Wheels Small

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 16
Availability Retired
100 LEGO Trains 4.5V Motor with Wheels Small
Retail $5.99
Value $190.81
Growth  +3085.5%
Annual growth 5.9%

100-2 4.5V Motor with Wheels Large

Theme / Subtheme Trains / 4.5V
Year 1966
Availability Retired
100-2 LEGO Trains 4.5V Motor with Wheels Large
Retail $6.50
Value $196.56
Growth  +2924.0%
Annual growth 5.9%

101-3 4.5V Battery Case

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 1
Availability Retired
101-3 LEGO Trains 4.5V Battery Case
Retail $2.35
Value $41.41
Growth  +1662.1%
Annual growth 4.9%

111-2 Starter Train Set without Motor

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 123
Availability Retired
111-2 LEGO Starter Train Set without Motor
Retail $6.95
Value $174.99
Growth  +2417.8%
Annual growth 6.0%

112-2 Locomotive with Motor

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 76
Availability Retired
112-2 LEGO Trains Locomotive with Motor
Retail $7.25
Value $714.08
Growth  +9749.4%
Annual growth 8.0%

113-2 Motorized Train Set

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 402
Availability Retired
113-2 LEGO Motorized Train Set
Retail $16.99
Value $3,836.41
Growth  +22480.4%
Annual growth 9.5%

114-2 Small Train Set

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 88
Availability Retired
114-2 LEGO Small Train Set
Retail $4.25
Value $515.79
Growth  +12036.2%
Annual growth 8.3%

115-2 Starter Train Set with Motor

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 139
Availability Retired
115-2 LEGO Starter Train Set with Motor
Retail $22.00

150 Straight Track

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 28
Availability Retired
150 LEGO Trains Straight Track
Retail $1.50
Value $18.57
Growth  +1138.0%
Annual growth 3.9%

151 Curved Track

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 28
Availability Retired
151 LEGO Trains Curved Track
Retail $1.50
Value $15.80
Growth  +953.3%
Annual growth 11.3%

152 Two Train Wagons

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 28
Availability Retired
152 LEGO Two Train Wagons
Retail $2.10
Value $38.22
Growth  +1720.0%
Annual growth 5.0%

153 Large Train Wagon

Theme / Subtheme Trains / 4.5V
Year 1966
Pieces 18
Availability Retired
153 LEGO Large Train Wagon
Retail $2.10
Value $39.67
Growth  +1789.0%
Annual growth 5.4%

Year Pricing

Retail
$79.48   (for all 12 sets)
New/Sealed
Value
~$5,782.31

Community Stats

The following are the top 10 most owned 1966 Trains 4.5V sets by LEGO collectors.
#1Straight Track
#2Curved Track
#3Motorized Train Set
#44.5V Motor with Wheels Small
#5Locomotive with Motor
#6Starter Train Set without Motor
#7Two Train Wagons
#8Large Train Wagon
#94.5V Battery Case
#104.5V Motor with Wheels Large

About LEGO Trains 4.5V

These are the first LEGO trains, sold from 1966 to 1971 and run on 4.5 volts. The power came from a battery box holding three 1.5 volt batteries, carried in a tender or wagon behind the engine, and the motor of 1966 was the first LEGO motor of any kind. The track was blue rails clipped onto sleepers, which is where the name Blue Era comes from.
1966 LEGO Sets
1966 marked one of LEGO’s greatest milestones with the launch of the LEGO Train system. Sold in 42 countries, the range introduced a 4.5V battery-powered system and a 12V electrified track version for advanced users. Specialized parts such as hook couplers, flanged wheels, and curved track debuted alongside sets like 113, 114, and 115, setting a new standard for mechanical play. Accessories soon followed, including a whistle-controlled motor unit. These innovations, led by LEGO Futura and the process development lab, established Trains as one of LEGO’s most enduring product lines.