Description & Size Guide
Clear plastic. 5/8"-18 threaded. OEM style replacement for OEM 704 (hex head) or 720 (Allen head) timing plugs. Designed to not touch the flywheel during dynamic timing. Note: For dynamic ignition timing with a strobe you may want to consider the much longer 925522 or 501865 clear plastic timing tool plugs; which are designed to just very lightly touch the flywheel to help prevent oil build-up on the plug for a clearer flywheel timing mark view.
38-99 Big Twin (Excl. Twin Cam); 52-03 XL Sportster; 38-73 45" Flathead (NU)
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