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Sonnax Vacuum Modulator Plugs

5.0 out of 5 stars 1 Customer Reviews

When building a racing Powerglide, it's necessary to plug the hole left by the vacuum modulator. Sonnax vacuum modulator plugs for the GM Powerglide transmission are made from anodized aluminum, and the gasket is included.

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Sonnax Vacuum Modulator Plugs 28738-01K

Modulator Plug, GM, Powerglide, Kit

Part Number: SOX-28738-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Estimated Ship Date: Monday 8/4/2025

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