These rubber airbox well nuts are designed for select Polaris snowmobile models where part number 7541923 is specified. Installed in the airbox mounting location, well nuts provide vibration isolation while securing airbox components in place. Manufactured to match OEM dimensions and rubber composition for proper fit and retention when used on compatible applications. This listing includes two well nuts. Verify model and airbox configuration using the Polaris parts diagram before ordering to ensure correct fitment. Fits the Following Models: Used on many Polaris snowmobile models including select: Indy XCR XC RMK IQ XLT Trail (Verify specific year and model using Polaris parts fiche for confirmation.) Replaces Polaris Part Number(s): 7541923