Besson Valve Guide – BE928G / 2028G / 950 / 2050 / AC333 / AC334 / 154 / 155 / 156 / 159 (SP640065)
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Product Overview
Genuine-style piston valve guide to restore correct port alignment and quiet action on select Besson/Alliance instruments. This guide fits the model group listed below and is ideal for routine servicing or replacing worn/noisy guides.
Compatible models (as supplied list): BE928G, 2028G, 950, 2050, AC333, AC334, 154, 155, 156, 159.
Part ref: SP640065.
Fit note: Visual-match your old guide before installation. If your instrument has been retrofitted with a different valve block, check the guide profile and slot orientation.
Key Features
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Direct-fit replacement for the SP640065 spec group
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Accurate valve alignment for consistent response and intonation
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Low-friction polymer to reduce mechanical noise
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Drop-in service part – installs during a standard clean/reassemble
What’s Included
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1 × valve guide (single piece)
Specifications
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Part number: SP640065
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Instrument family (by model): see compatible list above
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Type: Piston valve guide
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Material: Low-friction polymer (nylon/delrin-type)
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Colour/finish: Light/neutral (may vary by batch)
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Pack qty: 1