Kannapolis, North Carolina
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Kannapolis, NC 28081
(704) 933-­2203

Are Valve Caps on Tires Necessary? October 30, 2018

Kannapolis, Rowan
Are Valve Caps on Tires Necessary?, Kannapolis, North Carolina

Keeping your vehicle’s tires correctly inflated is necessary for optimal handling and safety while driving. Aside from frequently monitoring the pressure level of your tires, it’s also necessary to keep the valves capped tightly at all times. Made from heavy-duty plastic or metal, these caps are screwed onto the valves with an airtight seal to prevent loosening under the toughest road conditions. Below are a few reasons why these small auto parts actually serve a fairly big purpose.

What Do Valve Caps Do?

1. Protect Against Moisture & Dirt

Valve caps are more than just covers for the tire stems — they act as effective barriers against debris and moisture, which can cause damage to the tire interior. When the caps are not screwed on tightly, dirt can enter the valve stem, potentially blocking or contaminating the sealing surfaces and causing a leak. 

2. Maintain Tire Pressure

tiresThe valve cap also helps maintain the tire’s air pressure. When the valve fails or the core’s seal gets damaged, a tightly screwed cap can help prevent air from escaping tires. Keep in mind that metal valve caps are ideal for high-speed vehicles or track driving. Plastic caps, on the other hand, are used for everyday driving and for tires with inflation pressures of less than 100 psi.

Why Are Valve Caps Important?

The importance of proper tire inflation to road safety cannot be understated as poor tire inflation contributes to numerous driving accidents every year. Without valve caps, you may be losing the necessary pressure to keep your tires roadworthy. Reduced tire pressure also puts further strain on your engine and results in reduced braking efficiency, causing your vehicle to require more time and distance before coming to a full stop. Without the right pressure, some tires are vulnerable to sudden blowouts as well.


Valve caps are designed to keep your tires in good condition and keep you safe while driving. If you’re in need of tire maintenance or need to replace your current wheels, look no further than Brothers Tire Sales in Kannapolis, NC. The family-owned business offers a wide selection of tire brands, including Michelin®, BFGoodrich®, and Bridgestone®. To learn more about their products and services, visit them online or call (704) 933-2203.

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