4-PIN 12V DC IP65 Waterproof Relay with Harness 40/30 AMP Relay Switch – Heavy D

I like how the Hyster name appears on the relay, which makes it easy to match with other parts.

I like that the RELAY AND CONTROL labeling is clear, so new techs can identify the part quickly.

You'll see that the unbranded/general design keeps things simple, and it blends into different setups without drawing attention.