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Ferrea single valve spring kit for 2003–2009 Yamaha YZF450 applications. This kit supplies the spring components intended for a single valve and serves as direct replacement hardware for valve train maintenance on the listed model years. Packaged for part-level service, it supports routine engine repairs where valve springs require replacement, without additional parts beyond the kit contents.
Ferrea 03-09 Yamaha YZF450 Single Valve Spring Kit
