BrickLink - Part 2431pb575 : LEGO Tile 1 x 4 with Exclamation Mark in Warning Triangle and 'WARNING! HOT SURFACE' Pattern (Sticker) - Set 42042 [Tile, Decorated] - BrickLink Reference Catalog
Set 8053-1 : Mobile Crane [Technic:Model:Construction] | Lego technic, Lego building sets, Model building kits
BrickLink - Part 87079pb0578 : LEGO Tile 2 x 4 with Crane Operating Instructions for Rotating and Grabber Movement Pattern (Sticker) - Set 42042 [Tile, Decorated] - BrickLink Reference Catalog
MOD] Improved 42042 Crawler Crane - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
Found half of 42042 at a second hand store for CAD30, is it worth getting missing parts from internet to finish? : r/legotechnic