Will these fit my wheel valve stems?

These are 45MM caps designed for standard 1.75-inch valve openings. Measure your existing valve stem opening before ordering—if your wheels use non-standard stems, these won't thread properly.

Do these caps seal the valve stem or just sit on top?

They sit on top as a cosmetic cover. They don't create an air-tight seal, so check your tire pressure regularly with a gauge—don't rely on these to prevent slow leaks.

Will the chrome finish scratch or fade?

Chrome-plated finish resists corrosion, but road salt and pressure washer spray can dull it over time. Rinse with fresh water after driving in wet conditions to extend shine.