$149 57P Semi Trucks - Heavy Haul Tri-Axle Trucks 2 in 1 3D Model Pack 3D model by markos3d. Available on CGTrader. Check it out on CGHub.
STL (Stereolithography, filesize: 463 MB), OBJ (OBJ, filesize: 335 MB), 3DS (3D Studio, filesize: 123 MB), MAX (Autodesk 3ds Max, filesize: 213 MB), MA (Autodesk Maya, filesize: 155 MB), C4D (Cinema 4D, filesize: 250 MB), FBX (Autodesk FBX, filesize: 293 MB), LWO (Lightwave, filesize: 549 MB), BLEND (Blender, filesize: 520 MB), HRC (Autodesk Softimage, filesize: 440 MB), FBM (fbm, filesize: 141 MB)