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Product Overview
The valve stem extension tube is an inflation aid specifically designed for American-style valve stems (American-style valves), making it particularly suitable for tyres with deep rims and limited working space. Crafted from solid copper, it offers excellent sealing properties and resistance to ageing. Available with a variety of elbow angles (45°, 90°, 135°), it makes inflation more flexible and effortless.
✅ Includes cap and valve core
✅ Thickened tube body for burst and crack resistance
✅ Universal fit for American-style valves; plug-and-play
Why choose a valve stem extension tube?
During routine tyre inflation, the valve stem position on some rims or equipment is deep or at an awkward angle, making it difficult for standard inflation nozzles to connect directly. The Hongshun Automotive Maintenance extension tube effectively extends the inflation connection point, making the inflation process smoother. It is particularly suitable for:
Tires on deep-dish rims
Agricultural vehicles, trailers, motorhomes
Rear wheels of motorcycles and electric vehicles
Construction machinery tyres
Product Specifications and Models
Model Angle Total Length Elbow Length Connector Diameter Material
45° Extension Tube 45° 3.9 cm 1 cm 0.9 cm Pure Copper
90° Extension Tube 90° 4.4 cm 1 cm 0.9 cm Pure Copper
135° Extension Tube 135° 4.4 cm 1 cm 0.9 cm Pure Copper
All models are compatible with American-style valve stems (American-style valves), including valve cores and dust caps.
Key Selling Points (SEO keywords embedded)
🔩 Pure copper body, high strength and resistant to ageing
The body is made of pure copper, which is corrosion-resistant and high-pressure-resistant. It is less prone to brittle fracture during long-term use and offers more stable performance.
🛡️ Burst-proof and crack-resistant, with a thickened tube design
The thickened tube walls can withstand high-pressure inflation environments, avoiding the risk of bursting caused by sudden pressure surges.
🔄 Multiple angles available to suit different wheel rims
Offers three elbow angles: 45°, 90° and 135°, providing flexibility for various valve positions and allowing inflation without removing the tyre.
🧰 Includes cap and valve core – ready to use
Supplied with a dust cap and American-style valve core, ensuring a tight seal. Once fitted, it can be used long-term without removal.
Instructions (3 simple steps)
Unscrew the original dust cap from the valve
Screw the extension tube firmly onto the valve (the valve core is included)
Connect to an air pump to inflate
💡 Tip: We recommend checking the connection for leaks with soapy water after installation.
Suitable for
Car, motorbike and electric vehicle tyres
Trailers, motorhomes and ATVs
Agricultural machinery and construction vehicles
Deep-groove rims and dual-mounted tyres
Product Contents (per unit)
One each of 45°, 90° and 135° adapters (3 in total)
Why Choose Us?
Specialists in automotive maintenance tools with years of manufacturing experience
Made from solid brass – no cheap alloys
Precise angles, compatible with mainstream American-style valves
Burst-proof and crack-resistant, safe and reliable
Frequently Asked Questions (FAQ)
Q: Do I need to remove the tyre to install this?
A: No, simply screw it onto the existing valve stem.
Q: Is it suitable for all American-style valve stems?
A: Yes, it is specifically designed for American-style valve stems and offers excellent versatility.
Q: Will it leak air with prolonged use?
A: No, the product features a solid brass body and a high-quality sealing structure, ensuring excellent sealing performance.
