Free Delco Alternator Free 3D model by 87montels1. Available on CGTrader with 1108888 polys and 3326664 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 75.9 MB), STP (STEP, filesize: 29.9 MB), FBX (Autodesk FBX, filesize: 37.5 MB), GLTF (glTF, filesize: 119 MB), ASD (Adobe Dimension, filesize: 149 MB)