LEGO® Technic 42178 Surface Space Loader LT78

Current best price

LEGO 42178 is currently available from $41.98 incl. shipping at Walmart.com. Only one retailer in our comparison stocks it.

Updated November 1, 2026 at 8:00 PM EST

LEGO 42178 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 Surface Space Loader LT78 with the set number 42178 is part of the LEGO Technic theme and is recommended for ages 8+. It was released in March 2024. The model has 435 pieces, and we estimate it takes around 1 hour to build. 66 Brickfact users have this set in their collection.
The set weighs about 0.701 kg. The box measures 28.2 x 26.2 x 7.6 cm. The recommended retail price is $34.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at Walmart.com for $41.98 including shipping. That is $0.10 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 $46.85. You save around $4.87 if you buy the complete set at Walmart.com instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.12: the Part-Out-Value divided by the current best price on Brickfact.

Lego 42178 product data

Set Information

Set ID
42178
Theme
Pieces
435
Building Time
1 hour
Age Range
8+

Availability

Release
03/2024
Retiring Status
Retired (12/2025)

Price Information

RRP
$34.99
Insiders Points (for purchase at Lego)
228
Part Out Value
$46.85

Packaging

Weight
0.701 kg
EAN (GTIN13)
5702017584126

Popularity with Brickfact users

users have this set
66
buyers in the last 12 months
15

66 Brickfact users have Surface Space Loader LT78 in their collection. 15 users bought it in the last 12 months.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of November 1, 2026.

LEGO 42178 price trend

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

Current market value
$26.62
Growth vs. RRP
−23.9 % $34.99
Range
$23.54 – $27.57
Average
$26.16

Loading price history…

LEGO 42178 price history: how has the price changed?

Brickfact has been recording retailer prices since 10/12/2026. Best price so far: $41.49 (18 days ago).

Current best price
$41.98 +20% vs. RRP
Best price since 10/12/2026
$41.49 +19% vs. RRP · 18 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$41.98$41.4910/25/26

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.

Official Set Description for LEGO 42178 Surface Space Loader LT78

Inspire kids aged 8+ to adventure into outer space with the LEGO® Technic™ Surface Space Loader LT78 (42178) set. It makes a great gift for boys and girls who love space toys and construction vehicles.
This space exploration toy is packed with realistic details inspired by cutting-edge space engineering designs. Kids can steer the loader and raise the cabin before using the crane to pick up and move the cargo. This set also features a special space air-lock element so kids can connect other compatible space LEGO sets (sold separately) for even more space adventures.
The LEGO Builder app will guide your youngster on an intuitive building adventure, letting them zoom in and rotate models in 3D, save sets and track their progress.
  • Space vehicle for kids aged 8+ – This space exploration toy for boys and girls features steering, a raising and lowering function, a crane and an operator’s cab for hours of imaginative play
  • Raise and lower the crane – Kids can raise the operator’s cab and raise and lower the crane to pick up and move the cargo
  • Adapt to different terrains – Young space explorers can put the loader to the test as they imagine what it would be like to live and work on another planet
  • A gift idea for kids – This set makes a fun gift for boys and girls who love building space vehicle toys
  • Air lock connects to other models – A special space air-lock element lets kids connect other compatible space-themed LEGO® gifts (sold separately) for more adventures
  • Intuitive instructions – The LEGO® Builder app guides your youngster on an intuitive building adventure with tools that let them zoom in and rotate models in 3D, save sets and track their progress
  • Measurements – 435-piece set with a model measuring over 3.5 in. (9 cm) high, 8 in. (20 cm) long and 7 in. (19 cm) wide

Building Instruction for LEGO 42178 Surface Space Loader LT78

LEGO 42178 Frequently Asked Questions

How much does LEGO 42178 Surface Space Loader LT78 cost?
The lowest price in the Brickfact price comparison is currently $41.98 incl. shipping at Walmart.com. The RRP is $34.99.
Where can I buy LEGO 42178 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 42178: Walmart.com ($41.98).
Is LEGO 42178 still available?
LEGO has retired 42178 Surface Space Loader LT78. New copies are still available at 1 retailers in our price comparison while stocks last.
When was LEGO 42178 cheapest?
Since tracking began on 10/12/2026, the lowest shop price recorded by Brickfact for LEGO 42178 was $41.49 on 10/15/2026 at Walmart.com, including shipping. Amazon prices are not included.

All LEGO Technic sets from 2024

Disclaimer

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

LEGO® is a trademark of the LEGO Group, but this website is not sponsored, authorized or endorsed by them.
As an Amazon partner, we earn money on qualified sales that you make through links to Amazon on our website. The price for you remains the same, but you support this project ❤️ .
© 2026 Brickfact. All Rights Reserved