IHS390 Years:1939-47 Air Cleaner Cap 9N & 2N ONLY

IHS390 Years:1939-47 Air Cleaner Cap. For Either Donaldson Or United Specialties Air Cleaner --- With Vertical Air Intake Thru Hood --- Fits Outside Of The Pipe --- 1.75" ID --- 4.25" Body Diameter. FITS FORD TRACTOR: 9N & 2N ONLY.