637374-6 – Major Valve Service AssemblyIncludes Items: 105, 107, 111, 132, 135, 136, 137, 138, 139, 140, 141, 146, 147, 166, 176, 199, 200, 232, 233 and 236.

Major Valve Service AssemblyIncludes Items: 105, 107, 111, 132, 135, 136, 137, 138, 139, 140, 141, 146, 147, 166, 176, 199, 200, 232, 233 and 236. – Item: PD20E-FES-PTT – Air Section