Palm Coupling

4528040120 Palm Coupling belongs to COUPLING HEAD.

The 4528040120 pneumatic coupling serves as the critical interface between tractor and trailer air brake systems, designed to maintain uninterrupted airflow while allowing instant disconnection when required. This precision-engineered component withstands the rigors of daily hook-up cycles while preventing accidental separation that could compromise braking performance.

During maintenance operations, the coupling's quick-disconnect capability allows technicians to isolate trailer circuits for individual testing without tools. The 4528040120 model's bright anodized finish makes visual inspections for wear or contamination particularly effective.

Proper installation requires matching the coupling's 1/2" NPT threads to corresponding gladhands while ensuring O-ring seals are lubricated with silicone-based compounds. When paired with its female counterpart, the connection achieves IP67-rated dust and water protection.

4528040120 Palm Coupling belongs to TRAILER SYSTEM.

What It Is

·A heavy-duty air brake connector for trailers

·Part of the trailer system (Part No. 4528040120)

Key Features

·Standard M16×1.5 screw connections (fits most trailers)

·Works in extreme weather (-40℃ to +80℃)

·Built to last in tough hauling conditions

What It Does

·Keeps air flowing between truck and trailer

·Ensures reliable brake operation

·Prevents air leaks even on rough roads

Best For

·Long-haul trucking

·Heavy loads

Q: What are the main products of the factory?

A: We mainly produce clutch control components, pressure brake system components, height valves and shift boosters and other products.

Q: Where is the factory located?

A: It located in Diankou Industrial Zone, Zhuji City, Zhejiang Province, China, known as "The Hardware City in South China" with convenient transportation and developed freight.

Q: How to guarantee the quality of your products?

A: 1) Strict detection during production.

2) Strict sampling inspection on products before shipment and intact product packaging ensured.

3) Each order will provide the corresponding packing list and shipment pictures.

Q: What is the factory's minimum order quantity (MOQ)?

A: The MOQ of our factory is usually XX pieces/sets, but we can also negotiate according to customer needs.

Q: How to place an order and make payment?

A: You can place orders through various payment methods such as online platforms or bank transfers.