Caterpillar 7G-5221 Plate

The Cat 7G-5221 plate is a 120 mm diameter steel retainer plate that secures the bogie suspension cartridge pin on Caterpillar track‑type machines. It features a 120 mm outside diameter (4.72 inches) and a 15 mm wide profile (0.59 inches) with a threaded center hole sized 3/4-10 (1X), enabling a secure pin retention setup. Crafted from steel alloys (including structural and alloy steel variants), this plate is designed to hold the cartridge pin in place to maintain reliable bogie suspension performance during operation. The part is listed as compatible with a broad range of Cat track‑type tractors and related equipment, including models such as D9T, D9R, D8R II, D9L, D9N, D9, D10N, D9 GC, D8, D8T, D8R, D8L, D8GC, D10R, D10T2, D8N, D10T, D10, and various bulldozer, ripper, and winch configurations that use bogie suspension. This retainer plate is intended to be used as part of the bogie suspension cartridge pin assembly, and Cat recommends consulting the owner’s manual or your Cat dealer for exact fitment in your equipment’s current configuration.