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Leaking fuel shutoff valve

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Ak68w

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Turned my fuel valve off to clean the gascolator at annual and as I figured it started leaking. Is it best to disassemble and clean, or are there readily available replacements? Spruce has PN: 05-00848 for $172. Univair: 70781-000 $152, same photo. These look different from the factory as the the one I have has a spring on the bottom.
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