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Hooking up gauges, what size adapter

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Old Nov 22, 2007 | 02:54 AM
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Default Hooking up gauges, what size adapter

Does anyone know what size adapter I need to hook up my engine temp sensor to a set of 5.3 heads? Is it a 10mm or 12mm to 1/8" npt?
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Old Nov 22, 2007 | 05:39 AM
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I "think" it's 12MM, but don't bet the farm on it. I could be wrong.
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Old Nov 22, 2007 | 07:44 AM
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We always drill and tap the top of the water pump. The sender can then be screwed directly in and it will be more accurate.
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Old Nov 22, 2007 | 11:10 AM
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It is 12mm.. I drilled my out head to 1/4"npt. But some of the manufactors are now making adapters for there gauge senders.
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