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Sand Runner (42099 alternate model) Off-Road Buggy

Made By: Davejsp Technic MOCs, View store below


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Digital instructions + parts list (No Bricks)
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No bricks are included, you are buying digital instructions and a parts list.


Rebuild your LEGO Technic set 42099 “4×4 X-treme Off-Roader” into an Off-Road Buggy called “Sand Runner”!

You’re buying the building instructions only, no bricks included.

Additional Details



Rebuild your 4×4 X-treme Off-Roader into this new Buggy B-model.

I wanted my first alternative build for the 42099 set to be very different from the original model, so I went with this extreme-looking, off-road buggy called “Sand Runner”.
It’s a solid off-roader, but not a crawler.


– Remote-controlled drive and steering
– Independent suspension on all wheels

Worth mentioning aspects:
– It’s RWD, the transmission has a differential and a final gear ratio of 2.34:1
– Decent ground clearance for off-roading, 4 studs at the front axle, 5 studs at the rear axle
– The planetary wheel hubs are not used on the rear wheels
– The button to turn on the hub is accessible through the driver’s cabin
– Batteries can be easily swapped from below the car
– Needs a custom profile from the Powered Up app to be controlled. Detailed steps are provided within the MOC building instructions for this as well.








Watch a YouTube video here!



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