Rider Ring Set
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Boeing (737-300, -400, -500 when AlliedSignal Pneumatic High Stage Valve P/N 3214446-3 or 3214446-4 is installed.)
Description
PN: AIR21729
REPLACED PN: AlliedSignal 3177253-1 Pneumatic High Stage Valve Rider Ring Set
MODELS: Boeing (737-300, -400, -500 when AlliedSignal Pneumatic High Stage Valve P/N 3214446-3 or 3214446-4 is installed.)