Piper Aerostar 602P Bendix Magneto Noise Filter P/N 640105-501 (0123-914) shipping_upsground_25 The diameter of the opening

The diameter of the opening where the piston goes thru is 1-3/4"

Removed in good condition from a parted out 1979 Piper PA-28-201T Dakota N2890Z

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Piper Aerostar 602P Bendix Magneto Noise Filter P/N 640105-501 (0123-914) shipping_upsground_25 The diameter of the openingPiper Aerostar 602P Bendix Magneto Noise Filter Modified. P N 640105 501. Due to multiple quantities, buyer may not receive exact item pictured. Removed in good condition from a parted out 1981 Piper Aerostar 602P N98RD, S N 62P09268165049. TTAF 6,167. 9. Guaranteed to pass inspection or your money back. 30 Day Money Back Guaranteed less shipping costs. It is the buyer's responsibility to determine the parts suitability for installation and