New

LEGO Mighty Machines Series 1 (42233)

Technic · 44 pieces

From £3.99 at Kidinn · 11% off

Not retiring yet (on sale since 2026)

1 / 12

Compare prices (UK)

Regular price £4.49

See it at Kidinn, £3.99

Buy now: That’s the lowest price we’ve recorded here since 8 October 2026.

. Amazon offers can be third-party (marked).

Similar sets with bigger discounts

Price history

Lowest price today: £3.99; at Kidinn
Lowest we’ve recorded: £3.99; Kidinn, 22 Oct 2026
LEGO’s regular price: £4.49; today’s lowest is 11% off
Tracked since: 8 Oct 2026; 5 price changes since

Price records (9)

23 October 2026 · LEGO.com UK£4.49
22 October 2026 · Kidinn£3.99
21 October 2026 · Kidinn£4.49
21 October 2026 · LEGO.com UKout of stock£4.49
21 October 2026 · LEGO.com UK£4.49
19 October 2026 · LEGO.com UKout of stock£4.49
10 October 2026 · Argos£4.50
10 October 2026 · Smyths Toys£4.49
8 October 2026 · LEGO.com UK£4.49

Prices at LEGO.com UK, Amazon.co.uk, Argos, Smyths Toys, Very, John Lewis, The Entertainer and Kidinn, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Mighty Machines Series 1 in other countries

The lowest price today in each country where LEGO sells it, converted at the European Central Bank’s rate. Delivery across borders isn’t included: most stores only ship inside their own country.

CountryLowest priceIn GBPStore

AustraliaBest priceBig WA$5.00£2.62Big W
PolskaSmykPLN 15.49£2.97Smyk
DeutschlandSteinehelden€3.58£3.00Steinehelden
UK(this page)Kidinn£3.99£3.99Kidinn

Show all 13 countries

Exchange rates of 22 October 2026.

Resale value

What the LEGO Mighty Machines Series 1 actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

£3.36

Median of 2 sales (US sellers)

-25% vs LEGO’s regular price (£4.49)

Used

No sales in the last 6 months.

Sales on BrickLink, updated daily (last update 23 October 2026). Sold in US dollars, shown in British Pound at the ECB rate of 22 October 2026. Few sales mean a less reliable figure.

Set details

Pieces: 44
Minifigures: None
Ages: 7+
Released: 2026
Set number: 42233
Theme: Technic
Price per piece: 9.1pat today’s lowest price
LEGO.com rating: 3.8
LEGO Insiders points: 36

LEGO Mighty Machines Series 1 building instructions

Official instructions from LEGO.com, free to download. The LEGO Builder app has them too, many with 3D steps. All instructions on LEGO.com

LEGO Mighty Machines Series 1 parts list

39 pieces in 23 different parts and colors.

×632123b
×335186
×23749
×26632
×27944
×210928
×232073
×241677
×242610
×250951
×261332
×13705
×13713
×16536
×118651
×124316
×127940
×132062
×132291
×143857
×189679
×192907
×16591889

Parts list: Rebrickable.

About the LEGO Mighty Machines Series 1

Inspire building site adventures as kids open the mystery box to reveal the LEGO® Technic™ Mighty Machines (42233) construction toy. These surprise sets make a fun everyday gift idea for boys and girls ages 7 and up, with a vehicle to build, collect and display. Each mystery box contains 1 toy with 8 different construction site vehicles to collect, including a road roller, wheel loader, dump truck, cement truck, wrecking ball crane, mobile crane, bulldozer and an excavator. These sets give kids a great introduction to STEM building toys and engineering as each one includes a moving function powered by LEGO Technic pieces. Inside the box, kids will find a collectible playing card with stats about the model on one side and a road graphic on the other. Kids can use the cards to assemble the road as they collect sets or play and trade cards with friends. These surprise toys for kids make a cool treat for boys and girls who enjoy construction site pretend play.

COLLECTIBLE VEHICLE – Give kids who love vehicles and construction toys a treat with a LEGO® Technic™ Mighty Machines (42233) mystery box building set for boys and girls ages 7 years old and up
8 MACHINES TO DISCOVER – Each mystery box contains1 surprise toy which could include a road roller, wheel loader, dump truck, cement truck, wrecking ball crane, mobile crane, bulldozer or excavator
FUN FUNCTIONS – Every machine comes with its own LEGO® Technic™ moving function, giving kids an introduction to simple engineering techniques as they build
INCLUDES GAME CARDS – Each mystery box includes 1 playing card with fun stats and road graphics that let kids play a fast-paced game with friends as they collect sets
GIFT IDEA FOR KIDS – Treat young builders with this small everyday gift for boys and girls that lets kids assemble a model and create stories with their own mighty machine
BUILD, PLAY AND DISPLAY – LEGO® Technic™ construction machine sets inspire pretend play and make a cool addition to a kid’s collection of vehicle toys on display on a shelf, bedside table or desk
MYSTERY BOXES – The collectible vehicle is presented in its own mystery packaging, giving kids 1 surprise toy, 1 playing card and building instructions in each set
A HELPING HAND – Discover digital instructions in the LEGO® Builder app, where kids can zoom in and rotate models using 3D instructions, track their progress and save sets as they develop new skills

Description: LEGO.com.

LEGO Mighty Machines Series 1: FAQ

Is the LEGO Mighty Machines Series 1 retiring?

Not yet: the LEGO Mighty Machines Series 1 isn’t flagged as retiring. LEGO.com UK doesn’t list it as “Retiring soon”. We check every day and will update this page the day that changes.

How much is the LEGO Mighty Machines Series 1?

The lowest price we found today is £3.99 at Kidinn, out of 4 stores selling it today (regular price £4.49). Prices change often: this page is updated every day.

Should I buy the LEGO Mighty Machines Series 1 now or wait?

11% off at Kidinn. The best price today is £3.99 at Kidinn, 11% below LEGO’s regular price. That’s the lowest price we’ve recorded here since 8 October 2026.