Koponak | Airtight Aluminum Valve Covers
Over 1000 customers confirm that their usual size fits perfectly.
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Over 1000 customers confirm that their usual size fits perfectly.
Over 1000 customers confirm that their usual size fits perfectly.
(Brand names are used solely to indicate vehicle compatibility. No affiliation or endorsement is implied.)
Premium Aluminum Protection & Leak-Proof Seal
Shield your tires from dirt, corrosion, and pressure loss. Designed with high-grade aluminum and an internal rubber seal for stable performance on the road.
Leak-Resistant Rubber O-Ring
Each cap features a built-in red rubber O-ring seal inside. This internal layer creates a tight, secure barrier that prevents slow air leaks and maintains stable tire pressure.
Corrosion & Dust Shield
Exposed tire valves are vulnerable to road mud, grit, and moisture, leading to rust. This protective aluminum alloy cap blocks external elements, keeping your valve core clean.
Diamond Knurled Non-Slip Texture
Designed with a tactile diamond-pattern grip and horizontal parallel bands. This knurling lets you easily screw the cap on or off by hand, even with wet fingers or gloves.
Specifications
| Product Name | Airtight Aluminum Valve Covers |
| Height | 17 mm (0.7 in) |
| Diameter | 11 mm (0.4 in) |
| Weight | 12 g / set (0.4 oz / set) |
| Body Material | Aluminum Alloy |
| Seal Material | Rubber (Internal O-Ring) |
Frequently Asked Questions
⚙️ What materials are these valve caps made of?
The main body of the cap is crafted from lightweight aluminum alloy, and the interior is fitted with a durable red rubber O-ring seal to safeguard your tire valve.
🔒 How does the rubber seal prevent pressure loss?
The internal rubber O-ring is seated at the base of the threads. When screwed tightly, it compresses against the top of the valve stem, creating a tight seal that stops slow leaks.
🛠️ Do I need any tools to install or remove these caps?
No tools are required. The outer diamond knurled texture provides an anti-slip grip so you can easily install or remove them simply by hand.
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