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DIFFERENTIAL CYLINDER PRESSURE TESTER PLUG ADAPTERS

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14mm18mm
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Overview

Differential cylinder pressure tester plug adapters
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Reviews

Works perfect and high quality. Needed 14mm for Carbon Cub SS. Engine does have 18 mm to 14 mm reducers in engine block however, easier just to remove 14 mm spark plug.

Chuck B
May 26, 2019

Q&A

Q: What is the size on the hose side (tool) of the 18mm adapter?

1/8th NPT

Q: What is the size on the hose side (tool) of the 14mm adapter?

1/4 npt.

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