514827 Valve stem cap, nr 21

These MCS valve stem caps provide a durable solution for protecting tire valves from dirt, moisture, and road debris. Constructed from metal with a clean finish, these number 21 style caps are designed to thread onto standard Schrader valves found on most Harley-Davidson wheels. Replacing plastic caps with these metal alternatives ensures a more secure seal and a classic look for both cast and laced wheels. They are essential for maintaining consistent tire pressure by preventing slow leaks through the valve core during long rides. These caps are sold in packs of 100, making them an ideal choice for workshop use or large restoration projects.