2Pcs 95230-2P020 Automotive Relay12VDC 20A 4Pins

You will find that the 2 pack is a simple way to cover both old and new setups.

You will find that calling 935-2425-010-14 keeps ordering consistent across different suppliers.

What stands out about this Power Relay/Battery Isolator is the way it keeps the main battery disconnected until needed.