With the model RSS113024 clearly marked, swapping units takes minutes, even when enclosures are tight and crowded.
3-Pin LED Flasher Relays CF13, Fixed 12V Electronic Blinker Relay, Pack of 2
What stands out about this unbranded relay is that the pin layout is printed right on the top for quick reference.
A nice touch is how this Isolator reduces parasitic draw, helping batteries stay fresh longer.