Süüteploks
Süüteploks is an Estonian term that translates to "ignition block" or "spark block." It refers to a component within an internal combustion engine, specifically in older or simpler engine designs, that houses the spark plug. In essence, it's the part of the cylinder head or engine block where the spark plug is screwed in.
The primary function of the süüteploks is to securely position the spark plug at the correct angle
Historically, and in some smaller engines, the süüteploks might be a separate, sometimes even brass or cast