Feature: 1. Application: LS swap AC compressor adapter fittings kit is specially designed, perfect replacement for Denso 10S17F 10S20F Compressors. 2. OE Number: Replacing part numbers for reference are 451‑1105, 451‑1106, 440‑822, 440‑823. Please check your OE number before ordering. 3. 8AN and 10AN Fitting: The compressor adapters are standard 8 discharge and 10 suction fittings, high performance, reliable in use. 4. Function: This AC compressor adapter fittings allows you to keep your original sensors and integrate them into your swapped LS engine. 5. Aluminum Material: AC compressor adapters are made of hgih strength aluminum material, rugged, anti rust and durable, not easy to break. Specification: 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 10S20F Compressors. Package List: 2 x Adapter2 x Sealing Washers2 x O Ring2 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 of the item, please contact us before buying to avoid unnecessary return, thanks 3. Adapter will not work with compressor included with the performance 19155066 serpentine drive kit.