Diesel Glow Plug Tester
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FREE check engine light code reading! Most vehicles, most Advance locations. See store for details.

OTC Diesel Glow Plug Tester

Part No. OTC3673 Warranty Details  
Glow plug tester allows for testing without removing glow plug from engine. Powers the glow plug to test the plug in its operating state. Test much more accurate than a cold resistance test, which can miss short circuits. Tester uses a current measurement to accurately determine the proper operation and check for short circuits Glow plug tester provides fault detection through LED's for a quick analysis; Short Circuit, Over Current, Normal Operation, Open Circuit/Under Current.
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