LEGO® NINJAGO 71740 Jay's Electro Mech

Current best price

LEGO 71740 is currently available from $35.96 incl. shipping at Walmart.com. Only one retailer in our comparison stocks it.

Updated November 3, 2026 at 1:00 AM EST

LEGO 71740 price comparison: where is it cheapest?

Prices incl. shipping to the US ·

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information
The Lego set Jay's Electro Mech with the set number 71740 is part of the LEGO NINJAGO theme and is recommended for ages 4+. It was released in March 2021. It includes 2 minifigures. The model has 106 pieces, and we estimate it takes around < 1 hour to build. 65 Brickfact users have this set in their collection.
The set weighs about 0.310 kg. The box measures 10.3 x 7.5 x 2.4 in (26.2 x 19.1 x 6.1 cm). The recommended retail price is $19.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at Walmart.com for $35.96 including shipping. That is $0.34 per piece. Unfortunately, the set is currently not available below its recommended retail price.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about $19.64.

Lego 71740 product data

Set Information

Set ID
71740
Theme
Pieces
106
Building Time
< 1 hour
Age Range
4+
Minifigures
2

Availability

Release
03/2021
Retiring Status
Retired (12/2022)

Price Information

RRP
$19.99
Insiders Points (for purchase at Lego)
130
Part Out Value
$19.64

Packaging

Weight
0.310 kg
Packaging dimensions
10.3 x 7.5 x 2.4 in
EAN (GTIN13)
5702016889574

Popularity with Brickfact users

users have this set
65

65 Brickfact users have Jay's Electro Mech in their collection.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of November 2, 2026.

LEGO 71740 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
$16.11
Growth vs. RRP
−19.4 % $19.99
Range
$14.49 – $16.11
Average
$15.45

Loading price history…

LEGO 71740 price history: how has the price changed?

Brickfact has been recording retailer prices since 10/12/2026. Best price so far: $32.56 (20 days ago).

Current best price
$35.96 +80% vs. RRP
Best price since 10/12/2026
$32.56 +63% vs. RRP · 20 days ago

Daily lowest prices at the tracked shops, including shipping. Gaps indicate days with no recorded price. The table lists each shop’s lowest price.

Lowest price per retailer (since 10/12/2026)

RetailerCurrentLowest priceDate
Walmart.com LogoWalmart.com$35.96$32.5611/02/26

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

Minifigures from 71740 Jay's Electro Mech

The Jay's Electro Mech set includes 2 different minifigures, 1 of which are unique to this set. The combined value of the minifigures is $4.69, which is ~23% of the RRP of this set.
x1
Thumbnail of minifigure njo639
Eyezor
NINJAGO
time-logo
2021
#njo639
$1.68
i
4 sets
x1
Thumbnail of minifigure njo688
Jay Walker
NINJAGO
time-logo
2021
#njo688
$3.01
Unique

Official Set Description for LEGO 71740 Jay's Electro Mech

Kids can develop their building skills and play out fun scenes from season 4 of the LEGO® NINJAGO® TV series with Jay’s Electro Mech (71740). Featuring a posable mech, ninja car, spider toy, and a golden-sword display, kids can enjoy hours of ninja adventures.

Learn to build with LEGO® NINJAGO®
This cool ninja toy is specially designed to give young builders aged 4 and up a brilliant play experience. Inside the box, each bag of bricks has a complete model and character to build so kids can quickly get the action underway. There is also a Starter Brick to provide a partly constructed base to start building.

Fun for all the family
LEGO® 4+ sets are the perfect way for adults to enjoy building with kids. It’s quick and easy to get started – as well as a step-by-step paper guide in the box, this set comes with Instructions PLUS on the LEGO Building Instructions app. This interactive guide includes zoom, ghost and rotate tools for children to get the most from the building process.

  • LEGO® NINJAGO® Jay’s Electro Mech (71740) helps kids learn how to build before they enjoy fun battles with a posable mech toy and ninja car.
  • Action-packed battle toy set includes 2 minifigures from season 4 of the NINJAGO® TV series: ninja Jay and the villain Eyezor plus a Starter Brick to get the building and playing started quickly.
  • This awesome mech toy has posable arms and legs, a spinning blade, and a large sword in its hands, and a cockpit to carry Jay, all to inspire kids' fun-filled stories.
  • Eyezor’s car toy has a cool spinning platform mounted on it with a shooter that can fire studs for kids to play out fun battle scenes.
  • With just 106 pieces, this ninja playset provides a simple and fun build for kids aged 4 and up and makes the perfect gift for a child who deserves a special treat.
  • Measuring over 6.5 in. (17 cm) tall, 4 in. (10 cm) long and 6.5 in. (16 cm) wide Jay's Electro Mech looks great on display in a child's bedroom between playtime battles.
  • Youngsters can make their building experience even better with digital instructions PLUS. With the zoom, rotate and ghost modes, the building becomes part of the fun.
  • 4+ playsets offer a great way for youngsters to learn how to build with simple and easy-to-understand instructions, while also allowing the rest of the family to share in the fun.
  • For more than six decades, LEGO® bricks have been made from the highest-quality materials to ensure they pull apart consistently, every time. Ninja skills not needed!
  • LEGO® building bricks meet stringent safety standards, so kids are in safe hands.

Building Instruction for LEGO 71740 Jay's Electro Mech

LEGO 71740 Frequently Asked Questions

How much does LEGO 71740 Jay's Electro Mech cost?
The lowest price in the Brickfact price comparison is currently $35.96 incl. shipping at Walmart.com. The RRP is $19.99.
Where can I buy LEGO 71740 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 71740: Walmart.com ($35.96).
Is LEGO 71740 still available?
LEGO has retired 71740 Jay's Electro Mech. New copies are still available at 1 retailers in our price comparison while stocks last.
When was LEGO 71740 cheapest?
Since tracking began on 10/12/2026, the lowest shop price recorded by Brickfact for LEGO 71740 was $32.56 on 10/14/2026 at Walmart.com, including shipping. Amazon prices are not included.
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