 (Click image for a larger view) | The original fuel selectors for the Twin Comanche (PA30/39) featured a center shaft made of steel, which led to corrosion if water from the tanks sat in the bowl. These new stainless steel valves from Parker Hannifin are designed to resolve this problem, as well as age and wear issues. These new valves are identical to the originals, and they use the same gaskets O-rings, and procedures. Installation is quick and easy. FAA Approved. The fuel selector valve is manufactured with new stainless-steel design, replacing the former cadmiumplated version for more durability and performance. Twin Comanche Fuel Selector Data Sheet |