Technic

Volvo L120 Electric Wheel Loader

A small Technic loader that packs way more gearing than its size lets on.

Brick Rated Score

4.1/5

Set 42209 · 2025

Pieces973

Minifigsn/a

Year2025

Set number42209

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The verdict

This one won me over slowly.

It looks modest on the shelf, but there's a genuinely clever driveline crammed inside 973 pieces, and for once the size works in its favor because nothing drags. If you love functional Technic and don't need a giant on your shelf, it's a really satisfying little machine. Just know the hand cranks are slow and the sticker sheet does a lot of the pretty work.

Best for: Technic fans who want real mechanics without a 2,000-piece commitment

The full review

There's a thing that happens with small Technic sets where you assume they'll be a bit thin, and then you open them up and find more engineering than half the big ones. That's the Volvo L120 Electric Wheel Loader in a nutshell. It's a LEGO® set of only 973 pieces, it stands about 14cm tall and 35cm long, and yet packed inside is a proper working driveline: full four-wheel drive, two independent differentials, central articulated steering, and a bucket that raises, lowers, and tilts. The real machine is Volvo's biggest fully electric wheel loader, a 20-tonne beast that runs near silent with zero exhaust, and the set leans into that story in a way I found genuinely charming.

The build follows the classic Technic inside-out approach. Bag one is all articulation and axles, and honestly it feels a little wobbly and unconvincing for a while, three drive axles threading through the central pivot with universal joints, controls at the back linked all the way to the bucket at the front. It doesn't look like much until it suddenly clicks together into something rigid and mechanical, and that turn is the best part of the whole build. Then you get to the trickiest bit: extending three mini linear actuators to exact lengths during final assembly, which takes patience and a steady hand.

Now the honest caveats. The gearing is geared low, so functions are slow, and you'll be cranking those knobs a fair bit to see the bucket move. It's a sticker set too, with the Volvo and Electric lettering and even the taillights done in decals rather than printed pieces, which always stings a little at this price. And there's a real head-scratcher in the instructions: the two 20T bevel gears in the boom are set facing opposite directions, which puts stress on the mechanism and can knock the boom out of alignment. Plenty of builders just flip one to face the same way and report it runs like a charm after that. The steering wheel in the cab is also purely decorative, not connected to anything, which is a small letdown on an otherwise functional model.

So who does this suit? If you love functional Technic and care more about clever mechanics than shelf presence, this is a lot of engineering for the money and a lovely change of pace from the enormous flagship sets. It's rated for ages 9 and up and it really is accessible to all skill levels, but there's enough going on that experienced builders won't be bored. If you want a big display centerpiece, or you get frustrated by slow hand functions and sticker-heavy detailing, you might want to look elsewhere. For everyone else, this is one of the more satisfying little Technic machines of the year, and I'd happily recommend it.

The parts story

What the build is actually like, and the pieces worth knowing about.

Building it genuinely feels like assembling a real drivetrain in miniature. You start with the guts, the pendular rear axle and the central articulation, then thread three axles through the pivot so the crank at the back can drive the bucket at the front. For a good stretch it feels loose and precarious, then the frame, cabin, and bucket assembly lock it all into place and it firms right up. The last stretch, dialing three mini linear actuators to precise lengths so the boom sits true, is the fiddly bit that rewards taking your time.

For parts people, this is an excellent haul. You get newer heavy-duty differentials using the updated casing (65414) and gear pieces (69761 and 69762), a stack of U-joints, and the three electric motor rotors cleverly faked with Technic Driving Ring Extensions (35186) that spin under the openable engine cover. There's a brick-built charging port with a working flap instead of a sticker, and an orange rigid hose (100745) standing in for high-voltage cabling. At 973 pieces for around 119 dollars, the black-and-yellow beams, panels, frames, and gears make it one of the better value parts packs Technic put out this year, even before you count the differentials.

Fun facts

01The real Volvo L120 Electric is the biggest fully electric wheel loader Volvo makes, a 20-tonne machine running on a 282-kWh battery that gives 5 to 9 hours of work on a charge.
02Those three spinning cylinders under the engine cover represent the real loader's electric motors: two for propulsion and one for the hydraulics, since an electric machine has no combustion engine to model.
03The designers included a little shovel accessory, which reviewers joked was for the driver's range anxiety, and a minifigure can only fit in the cab if you remove the seat first.
04On the actual machine, hitting the brakes recovers energy back into the battery to stretch its runtime, and skipping the engine means about 30 percent less maintenance.