Switch under the Dash. What is it??

[Hoootz]

 

[3_puppies]

looks like a master switch, not OEM
anything going to the back of it?

 

[B y r o n]

Does your rig have more than one fuel tank?

 

[ToyotaMatt]

View attachment 3333406

That is one hell of a big scary non-OEM gold plated handle bar there …?

 

[Green Bean]

Thinking along the lines of an antitheft device?

 

[Paul_A]

Looks like a ground interruption switch--disconnects battery from ground and stops thieves as well as slow electrical drains. We use them on campers and tractors a lot.

 

[allworknoplay]

X2....that's the exact switch we have on fire trucks for the battery cut off