What is this part? It's leaking oil on my generator (there's a small rubber plug on a cable, and(02)

What is this part? It's leaking oil on my generator (there's a small rubber plug on a cable, and(02)

Image gallery: Generator Leaking Oil

How To Fix Oil Leak In Generator at Susan Tucker blog How To Properly Use Choke On Your Generator (4) Step Guide What is this part? It's leaking oil on my generator (there's a small rubber plug on a cable, and