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A BlueHummer Original
Makes purging your Fuel Filter Easy!
Provides relay for Lift Pump operation, reducing load on the oil pressure switch (1998 and earlier). Also provides convenient switch for operating the lift pump for testing or for purging air bubbles after fuel filter changes.
Simple plug-in installation. For Diesel Hummers only. Style and colors may vary.
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Hummer brand is registered by GM and/or AM General.
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Last Update: December 9, 2017