Black plastic valve cap with ridged sides and rounded top shown on white background

XTRA SEAL X174921 Valve Caps, Black Plastic with O-Ring – 100 Pack

Q: How do these valve caps compare to standard plastic caps without O-rings? A: These caps feature integrated rubber O-rings that create an airtight seal, preventing gradual air loss that occurs with basic plastic caps. Standard caps only protect against dirt and debris but don't seal valve stems. The O-ring design maintains tire pressure between checks and extends valve stem life by blocking moisture and contaminants.

Q: How do these valve caps compare to standard plastic caps without O-rings? These caps feature integrated rubber O-rings that create an airtight seal, preventing gradual air loss that occurs with basic plastic caps. Standard caps only protect against dirt and debris but don't seal valve stems. The O-ring design maintains tire pressure between checks and extends valve stem life by blocking moisture and contaminants.

Q: Will these valve caps fit my motorcycle or bicycle tires? A: Yes, these caps fit all standard Schrader valve stems commonly used on motorcycles, bicycles, cars, and trucks. They're universal for most tire valve applications. The threaded design matches industry standards, so they work with any vehicle using Schrader-type valve stems including ATVs, trailers, and lawn equipment.

Q: Will these valve caps fit my motorcycle or bicycle tires? Yes, these caps fit all standard Schrader valve stems commonly used on motorcycles, bicycles, cars, and trucks. They're universal for most tire valve applications. The threaded design matches industry standards, so they work with any vehicle using Schrader-type valve stems including ATVs, trailers, and lawn equipment.

Q: How tight should I install these valve caps? A: Hand-tighten the caps until snug but avoid over-tightening. The O-ring creates the seal with light pressure. Over-tightening can damage the valve stem threads or make removal difficult. Turn clockwise until you feel resistance, then add just a quarter turn more for proper sealing without stress on the valve stem.

Q: How tight should I install these valve caps? Hand-tighten the caps until snug but avoid over-tightening. The O-ring creates the seal with light pressure. Over-tightening can damage the valve stem threads or make removal difficult. Turn clockwise until you feel resistance, then add just a quarter turn more for proper sealing without stress on the valve stem.

Q: Can these valve caps help prevent tire pressure loss? A: Yes, the rubber O-ring seal prevents air from slowly escaping through the valve stem connection, helping maintain consistent tire pressure between regular checks and inflations. This reduces the frequency of tire pressure monitoring and can improve fuel economy by maintaining optimal inflation levels over longer periods.

Q: Can these valve caps help prevent tire pressure loss? Yes, the rubber O-ring seal prevents air from slowly escaping through the valve stem connection, helping maintain consistent tire pressure between regular checks and inflations. This reduces the frequency of tire pressure monitoring and can improve fuel economy by maintaining optimal inflation levels over longer periods.

$3.99

Product variants

Black plastic valve caps with rubber O-rings shown in 100 pack display

Premium Protection - XTRA SEAL Valve Caps (X174921, 100 Pack)

Black Plastic Valve Caps with O-Ring Seal

The XTRA SEAL X174921 valve caps provide reliable protection for tire valve stems with their durable black plastic construction and integrated rubber O-ring seal. Each 100-pack prevents air loss and blocks contaminants from entering Schrader valve stems on vehicles.

Key Features and Benefits

Leak-Proof Protection - Integrated rubber O-ring creates an airtight seal that maintains tire pressure and prevents air loss from valve stem connections.

Universal Vehicle Compatibility - Fits all standard Schrader valve stems used on passenger cars, trucks, motorcycles, and bicycles.

Durable Construction - Impact-resistant black plastic withstands temperature extremes and regular handling without cracking.

Applications

Perfect for automotive shops, fleet maintenance, and DIY tire care:

Passenger car and light truck tire maintenance.
Motorcycle and bicycle valve stem protection.
Commercial fleet and trailer applications.
Lawn equipment, wheelbarrows, and pneumatic tools.
Replacement caps for damaged or missing originals.

Product Specifications

XTRA SEAL X174921 Valve Caps Specifications
Specification	Details
Brand	XTRA SEAL
Model	X174921
Quantity	100 caps per pack
Material	Black plastic with rubber O-ring
Compatibility	Standard Schrader valve stems
Installation	Hand-tightened, no tools required
Alternative Part Numbers	17-492-1, VC8

Order Your Valve Caps Today

Keep your valve stems protected and maintain proper tire pressure with XTRA SEAL's reliable plastic valve caps. Stock up with this convenient 100-pack for all your automotive maintenance needs.

Add to cart now for fast shipping and professional-grade valve protection.

Frequently Asked Questions

How do these valve caps compare to standard plastic caps without O-rings?

These caps feature integrated rubber O-rings that create an airtight seal, preventing gradual air loss that occurs with basic plastic caps. Standard caps only protect against dirt and debris but don't seal valve stems.

Will these valve caps fit my motorcycle or bicycle tires?

Yes, these caps fit all standard Schrader valve stems commonly used on motorcycles, bicycles, cars, and trucks. They're universal for most tire valve applications.

How tight should I install these valve caps?

Hand-tighten the caps until snug but avoid over-tightening. The O-ring creates the seal with light pressure. Over-tightening can damage the valve stem threads or make removal difficult.

Can these valve caps help prevent tire pressure loss?

Yes, the rubber O-ring seal prevents air from slowly escaping through the valve stem connection, helping maintain consistent tire pressure between regular checks and inflations.

About the Brand

Xtra Seal

View All Xtra Seal Products

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