Airmatic Brake Emergency Relay Valve Compatible with 51301 Trailer Emergency Valve 1/4" Supply & Control Ports Spring Brake Control

Replace Number: 51301 Fitment: Specially designed for heavy-duty trucks Package Includes: 1 × 1/4" Supply and Control Ports Trailer Emergency Valve Feature Introduction: A. Ensure precise control of the brake valve B. The main function is to adjust the tension of the brake chamber spring C. Ensures repeatable application and release of parking/emergency brakes Special Instructions: Replace Number: 51301 Supply Port Size: 1/4" Control Port Size: 1/4" Reservoir Port Size: 1/2" Delivery Ports Size: Typically 3/8" Application: Emergency and spring brake control on trailer brake systems Tips: A. This product has excellent quality and does not require frequent replacement after installation B. Please carefully read the compatible vehicle models, replacement part numbers, and pictures before purchasing; to avoid installation issues, please check if this product meets your needs

• Replace Number: 51301
• Compatible Model: Specially designed for heavy-duty trucks, matched with dual circuit pneumatic/hydraulic braking system, working in conjunction with spring storage brake chamber
• Material technology: The spring is made of excellent alloy steel material to reduce metal fatigue; the valve body is forged from excellent metal alloy material, with surface treatment, making it less prone to damage and failure
• Functional advantages: precise control, optimizing brake valve response speed by adjusting spring tension; the combination of special material coatings and sealing ring design allows the product to be used under most complex conditions; noise reduction and improved comfort for more comfortable drive on congested roads
• Easy installation: plug and play, standardized interface design, 1/4'' thread, can replace most heavy truck parts without modification