Application: LS swap AC compressor adapter fittings kit is specially designed as a perfect replacement for Denso 10S17F and 10S20F compressors. OE Number: Replacing part numbers for reference are 4511105, 4511106, 440822, 440823. Please check your OE number before ordering. 8AN and 10AN Fitting: The compressor adapters feature standard 8AN discharge and 10AN suction fittings, providing high performance and reliable operation. Function: This AC compressor adapter fitting allows you to retain your original sensors and integrate them into your swapped LS engine. Material: Made of high-strength aluminum material, the AC compressor adapters are durable, rust-resistant, and rugged for long-lasting use. Item Type: AC Compressor Adapter Fittings Material: Aluminum Connector Size: 8AN and 10AN OE: 451-1105, 451-1106, 440-822, 440-823 Application: Replacement for Denso 10S17F and 10S20F Compressors Package List: 2 x Adapter 2 x Sealing Washers 2 x O-Ring 2 x Hex Bolt Note: 1. Please double check the part number of your item; matching information is for reference only. 2. If you are unsure about the item, please verify compatibility before purchase to avoid returns. 3. This adapter will not work with the compressor included in the Performance 19155066 serpentine drive kit.