Caterpillar 1T-0665 O-Ring Seal For Hydraulic System

Genuine Caterpillar 1T-0665 Torque Converter Clamp Ring is an OEM Cat component listed in official Cat catalogs as a torque converter clamp ring, with the Classic Part Number 308-9918. This ring is designed for use within torque converter assemblies in Caterpillar hydraulic drive systems found on Cat equipment, providing a dedicated replacement option for models that employ the 1T-0665 clamp ring. The Cat Parts Store identifies the part by name and number as a specific, authentic Cat replacement, ensuring compatibility with Cat torque converters and associated hardware. As an OEM Caterpillar part, 1T-0665 is intended to fit the torque converter configurations that require this clamp ring, supporting correct engagement and alignment within the converter assembly. When servicing Cat machinery that relies on torque converters, this part offers a direct, authentic replacement that matches Cat’s original specifications and maintains the integrity of the converter assembly.