Light Kit For App-Controlled Cat D11 Bulldozer 42131 – Lightailing
LEGO® Technic review: 42131 Cat D11T Bulldozer | New Elementary: LEGO® parts, sets and techniques
Cat D11-bulldozer (42131) control+ test your build step 3 rotation direction. App says clockwise, mine is counter-clockwise. Other side rotates clockwise. Should mine rotate clockwise as pictured in app, and is it
First look at the LEGO Technic 42131 CAT D11 Bulldozer! - Jay's Brick Blog
LEGO Technic 42131 Cat D11 Bulldozer [Review] - The Brothers Brick | The Brothers Brick