Caterpillar Inc 6G5553 Steering Wheel Assembly

CAT 6G5553 Steering Wheel Assembly is an OEM Caterpillar steering wheel designed as a replacement part for a specific line of CAT machines, including models 621, 621B, 621R, 627B, 637D, and 641B, and it uses the 8R-2916 wheel style. The 8R-2916 designation identifies the wheel style and is associated with a steering wheel of roughly 89 mm outer diameter, as referenced in CAT wheel assembly specifications. The part is cataloged as a Wheel Assembly-Steering under the 6G5553 designation, confirming its role as the steering wheel component that attaches to the vehicle’s steering system and is intended to restore original steering performance on the listed equipment when used with the appropriate mounting hardware and factory-fit interface.