This I believe is an earlier MSR Model G, and with my personal favorite..... blue bodied burner bell. It came with the yellow pump. Which has the metal pickup tube and brass pins holding it together. In my opinion this is the best pump MSR ever made. Thick plastic, solid, aluminum fuel pickup, brass pins (which can be purchased at Tractor Supply and cut down to size "not brass")(screens inside pump also sold there), and just overall more efficient. Soon as I received the stove I tore it down to it's smallest components, lightly scrubbed everything, and then gently polished it. Then I replace all the o-rings, oil the pump cup, and assemble. Unfortunately I got in the habit of tearing the stoves down before I even test them, which isn't a Big deal because the manufacturing is pretty straight forward and there's no reason Why it shouldn't work after refurbishing it. What is upsetting is that I don't take photos prior to Cleaning. Anyways, after doing all that I lite the stove for the 1st time and this brilliant green flame came to life! Only for a short minute and then turned to the normal bluish fame.