The Caterpillar 1176985 friction disc is an OEM component designed for various Caterpillar heavy machinery, including articulated trucks, challengers, earthmoving compactors, excavators, motor graders, pipelayers, track-type tractors, wheel dozers, wheel loaders, and wheel scrapers. This genuine friction disc ensures optimal power transmission and durability in demanding operational conditions, providing reliable performance for critical drive and braking systems. With an outer diameter of 177.8 mm, an inner diameter of 127.0 mm, and a thickness of 3.05 mm, it is engineered to precise Caterpillar specifications.