Undercarriage Parts, Rubber Tracks, Heavy Equipment Parts, Paver Parts and more. HEAVYQUIP specializes in parts for bulldozers, excavators, compact track loaders, wheel loaders, skidders, asphalt pavers, elevating scrapers, motor graders, miniexcavators, minitrack loaders and offers the most complete line of aftermarket undercarriage parts, such as track chains, bottom rollers ...