Summit S-670 Rotisserie Compatible Safety Valve and Thermocouple?

[David Hausser]

I have a 2010 Summit S-670. The rotisserie burner will not stay lit. I assume it is either the safety valve or the thermocouple. I've searched, but I've been unable to determine which safety valve and thermocouple are compatible with this grill

Do any of you know how I determine which safety valve and thermocouple I would need?

Thanks,
Dave