Caterpillar 2H-3932 is a Cat O-ring seal (Cat part number 2H-3932) with a confirmed 28.17 mm inner diameter, intended for sealing joints in Cat engines and hydraulic assemblies. Cat's official Parts Store notes that some Cat O-rings are available with PTFE coating to minimize twist and cutting during installation. This 2H-3932 seal is specified for Caterpillar equipment that requires a 28.17 mm ID O-ring seal, applicable across multiple Cat models and configurations. Verify compatibility by matching the 28.17 mm inner diameter and the Cat part number to your specific assembly’s requirements.
