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Sets
Trains
9V
Small Locomotive

3740 LEGO Trains Small Locomotive

Name: LEGO Trains Small Locomotive
Brand: LEGO
SKU: 3740-1
Availability: InStock
Rating: 4.70 (23 reviews)

Images 3Description 1

LEGO 3740 Small Locomotive is a Trains set from 2001 valued at $64 for new and sealed sets, up 326% from an original retail price of $14.99. Annual appreciation has averaged 3.97% since release. On the used market, values range from $52 to $65 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Small Locomotive since October 2016. Very high accuracy

LEGO 3740 Small Locomotive is a Trains 9V set released in 2001, containing 67 pieces. Part of the My Own Train collection, it is a push-powered engine designed for color customization, with the default blue version and optional color brick packs 3743 Blue, 3744 Green, 3745 Black, 3746 Brown, and 3747 Dark Grey. The model is the smaller counterpart to 3741 Large Locomotive. It is also designed to connect with set 3742 Tender.

A new and sealed Small Locomotive is currently valued at around $64, with annual growth of approximately 4%. The average used price is $53 for those in good overall condition. Based on current trends, this set could be valued near $66 within the next year.

There are currently no new/sealed listings available for Small Locomotive at this time.

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Sale Trends

This chart shows the sales trends (number sold) of new/sealed 3740 Small Locomotive.

Related Sets


	3743 Locomotive Blue Bricks Theme / Subtheme Trains / 9V Year 2001 Pieces 106 Availability Retired Buy this set at Bricklink	Retail $6.99 Value $36.85 Growth +427.2% Annual growth 6.1% I own this set I want this set

	3744 Locomotive Green Bricks Theme / Subtheme Trains / 9V Year 2001 Pieces 106 Availability Retired Buy this set at eBay	Retail $6.99 Value $20.03 Growth +186.6% Annual growth 3.2% I own this set I want this set

	3745 Locomotive Black Bricks Theme / Subtheme Trains / 9V Year 2001 Pieces 106 Availability Retired Buy this set at Bricklink	Retail $6.99 Value $43.82 Growth +526.9% Annual growth 6.1% I own this set I want this set

	3746 Locomotive Brown Bricks Theme / Subtheme Trains / 9V Year 2001 Pieces 106 Availability Retired Buy this set at eBay	Retail $6.99 Value $22.95 Growth +228.3% Annual growth 3.8% I own this set I want this set

	3747 Locomotive Dark Grey Bricks Theme / Subtheme Trains / 9V Year 2001 Pieces 106 Availability Retired Buy this set at eBay	Retail $6.99 Value $13.68 Growth +95.7% Annual growth 4.8% I own this set I want this set

My Own Train Sets


	4534 LEGO Express Theme / Subtheme Trains / 9V Year 2002 Pieces 456 Availability Retired Buy this set at eBay	Retail $159.99 Value $492.80 Growth +208.0% Annual growth 4.8% I own this set I want this set

	4535 LEGO Express Deluxe Theme / Subtheme Trains / 9V Year 2002 Pieces 762 Availability Retired Buy this set at Amazon eBay	Retail $179.99 Value $519.82 Growth +188.8% Annual growth 4.5% I own this set I want this set

	10205 Large Black Train Engine with Tender Theme / Subtheme Trains / 9V Year 2002 Pieces 232 Availability Retired Buy this set at eBay Bricklink	Retail $23.99 Value $295.64 Growth +1132.3% Annual growth 5.0% I own this set I want this set

	4186875 Platform and Mini-Figures Theme / Subtheme Trains / 9V Year 2002 Pieces / Minifigs 47 / 5 Availability Retired Buy this set at eBay	Retail $19.99 Value $69.21 Growth +246.2% Annual growth 4.8% I own this set I want this set

	4186876 Blue Passenger Wagon Theme / Subtheme Trains / 9V Year 2002 Pieces 192 Availability Retired Buy this set at eBay Bricklink	Retail $24.99 Value $200.92 Growth +704.0% Annual growth 7.7% I own this set I want this set

	3741 Large Locomotive Theme / Subtheme Trains / 9V Year 2001 Pieces 92 Availability Retired Buy this set at eBay Bricklink	Retail $19.99 Value $217.98 Growth +990.4% Annual growth 6.9% I own this set I want this set

	3742 Tender Theme / Subtheme Trains / 9V Year 2001 Pieces 39 Availability Retired Buy this set at eBay	Retail $10.99 Value $102.66 Growth +834.1% Annual growth 9.4% I own this set I want this set

	10013 Open Freight Wagon Theme / Subtheme Trains / 9V Year 2001 Pieces 121 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $16.99 Value $80.79 Growth +375.5% Annual growth 6.4% I own this set I want this set

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	10017 Hopper Wagon Theme / Subtheme Trains / 9V Year 2001 Pieces 228 Availability Retired Buy this set at Amazon eBay	Retail $19.99 Value $92.34 Growth +361.9% Annual growth 3.6% I own this set I want this set

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	10001 Metroliner Legend Theme / Subtheme Trains / 9V Year 2001 Pieces / Minifigs 782 / 11 Availability Retired Buy this set at Amazon eBay	Retail $149.99 Value $1,199.99 Growth +700.0% Annual growth 6.1% I own this set I want this set

	10020-2 Santa Fe Super Chief Limited Edition Theme / Subtheme Trains / 9V Year 2002 Pieces / Minifigs 436 / 2 Availability Retired Buy this set at eBay	Retail $39.99 Value $631.33 Growth +1478.7% Annual growth 5.9% I own this set I want this set

	10020 Santa Fe Super Chief Theme / Subtheme Trains / 9V Year 2002 Pieces / Minifigs 435 / 2 Availability Retired Buy this set at eBay Bricklink	Retail $39.99 Value $524.36 Growth +1211.2% Annual growth 5.2% I own this set I want this set

	10022 Santa Fe Cars Set II Theme / Subtheme Trains / 9V Year 2002 Pieces 411 Availability Retired Buy this set at Amazon eBay	Retail $34.99 Value $569.72 Growth +1528.2% Annual growth 5.8% I own this set I want this set

	10025 Santa Fe Cars Set I Theme / Subtheme Trains / 9V Year 2002 Pieces 326 Availability Retired Buy this set at Amazon eBay	Retail $34.99 Value $508.12 Growth +1352.2% Annual growth 7.3% I own this set I want this set

	10002 Railroad Club Car Theme / Subtheme Trains / 9V Year 2001 Pieces / Minifigs 293 / 5 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $37.49 Value $556.00 Growth +1383.1% Annual growth 5.8% I own this set I want this set

	3748 Light Unit for Train Theme / Subtheme Trains / 9V Year 2001 Pieces 4 Availability Retired Buy this set at eBay Bricklink	Retail $9.99 Value $29.82 Growth +198.5% Annual growth 3.5% I own this set I want this set

	10153 Train Motor 9 V Theme / Subtheme Trains / 9V Year 2002 Pieces 3 Availability Retired Buy this set at eBay	Retail $24.99 Value $156.28 Growth +525.4% Annual growth 4.9% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

3740-1

Name

Small Locomotive

Theme

Trains

Subtheme

Year

2001

Availability

Retired

Pieces

67 (PPP $0.22)

Set Pricing

Retail price

$14.99

New/Sealed

Value

$63.92

Growth

+326.42%

Annual growth

+3.97%

Used

Value

$53.05

Range

$52.05 - $64.58

Quick Buy

eBay

Check

Price

$62.00

Bricklink

Check

Price

~$64.56

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$63.92

1 year forecast

$66.46+3.97%

5 year forecast

$76.49+19.67%

$74

$79

3740 Small Locomotive is projected to be valued between $74 - $79 within five years.

Insights

Released in the 9V era and retired as an Exclusive, Small Locomotive (3740) draws steady interest from train collectors for its My Own Train variants and 9V compatibility, while its small, minifigure-less format limits broader demand despite strong post-retirement performance for sealed copies.

Set Facts

The was the smaller version of set 3741 Large Locomotive.
The locomotive could also connect with set 3742 Tender.
LEGO My Own Train was a concept introduced by LEGO in the early 2000s that allowed fans to customize and build their own trains. It featured a series of train sets, including locomotives, tenders, and various types of rolling stock, available in multiple colors. Fans could mix and match these elements to create personalized train layouts, offering more flexibility and creativity compared to standard LEGO train sets.
Small Locomotive was designed by LEGO designer Jorn Thomsen.

Regional Retail Prices (LEGO.com/Store)

United States

$14.99

United Kingdom

£9.75

Barcodes

UPC

042884037406

EAN

5702012018695

Small Locomotive Reviews

23 reviews

4.7

Collectors

Investors

Brickset

“Perfection in its closest. This engine is the closest and most accurate one in the Lego train universe, as well as having a great playability value as well. The colors agreed with each other, the model had excellent form and the model had a unique style of trains to add.”

Full review at brickset.com

BrickTrains-Sets

“The Lego 3740 Small locomotive is not really a train set, then again, it’s not really a addition either, it’s a bit of both in one. This is the "My Own Train" Locomotive Kits, the set includes 67 pieces. Unfortunately, this set does not run on 9 volt rails, or on anything... More for that matter. It is just push power. The default color for the 3741 Large Locomotive, and 3742 Tender, is blue but with the 3743 – 3747 sets, you can change the color of the train from anything from green, black, brown, and dark grey. There is a larger version of this train and that one did not run on electricity either.”

Full review at bricktrains-sets.com

Subtheme Analysis

Trains / 9V

Sets

Years

1991 - 2006

Annual growth

+4.79% (this set +3.97%)

This set's annual growth (CAGR) vs. subtheme

Community Stats

Small Locomotive currently ranks #59 out of the top most owned sets in Trains 9V.

#1Straight Rails

#2Curved Rails

#3Manual Points with Track

#4Santa Fe Super Chief

#5Santa Fe Cars Set II

#59Small Locomotive

#60LEGO Express

#61Blue Passenger Wagon

About Trains 9V

LEGO Trains is one of the longer running themes that dates back from 1966 and ran up until 2006. During its run there were multiple sets released running on various power platforms from 4.5volt, to 9 and 12 volt sets. Later in 2011 LEGO released additional train sets using RC and Power Functions controllers under different themes like City.

9V consists of 67 sets that ran from 1991 to 2006. As of today, 4558 Metroliner is the most valuable 9V set with an estimated new/factory sealed value of $1,989.

Build a LEGO train engine in the style you want and the color you want! Here's the first ever LEGO train where you get to choose the size, style and color. Kits include building instructions and all the pieces you need to build the train engine you've selected. 317 Lights, motors, and tracks are sold separately - see item numbers and prices below. Ages 8+.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$63.92

Value (in a year)

$66.46

Value (in 2 years)

$69.00

Accuracy

0.960500 Very high

Statistical Model

Value (today)

$77.98

Value (in a year)

$80.15

Value (in two years)

$82.33

Accuracy

0.303200 Low

Used

Machine Learning/AI Model

Value (today)

$53.05

Value (low range)

$52.05

Value (high range)

$64.58

Accuracy

0.905500 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

Theme · Light

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