
These half-moons (valve locks) FEULING PARTS ensure the retention of the spring on the valve stem: they prevent the valve from falling into the cylinder and guarantee that the spring properly maintains the closure of the valve. High-quality machined steel part, standard height compliance for valve stems of 7.00 mm. Made in the United States, designed as an original replacement.
Suitable for Vintage/Classic, Touring and Roadster universes, this component is installed during a cylinder head revision or valve replacement. Particularly suitable for many Harley-Davidson models (examples: FXDLS Low Rider S, FLSTFBS Fat Boy S, FLSS Softail Slim S - 2017 models 1800 cc). For optimal safety, change the half-moons in pairs and use the appropriate tools during installation. In case of doubt, entrust the installation to a qualified workshop to ensure compliance with manufacturer tolerances and torque specifications.