Model Compatibility: Fits compressor models R90I, R110I, R90N, and R110N as a direct replacement for the oil separator component. Part Number: Replaces part number AP01 23545841 in the specified compressor models. Functional Purpose: Restores oil separation function in the designated R90I, R110I, R90N, and R110N compressors. Installation Requirement: Designed to install in the same location and orientation as the AP01 23545841 oil separator without modification. Specificity: Intended for use with R90I, R110I, R90N, and R110N compressors requiring the AP01 23545841 oil separator., Manufacturer: TRdkTDaen