Will these caps fit my car's valve stems?

These are universal fit for standard valve stems. If your vehicle uses OEM custom caps, test-fit one first—most cars run standard sizing and you're good to go.

Do I need to clean or prep the valve stems before installing?

Wipe any dirt or debris off the stems with a dry cloth. The caps seat on the valve—no special prep needed.

Can I use these on all four tires?

Set includes 4 caps—one for each wheel. Standard fitment across all tire valve stems on the same vehicle.