High Quality Foton Auman Truck Parts Middle Axle Relay Valve with Silencer H4356A02002A0

• This air brake relay valve is engineered as an original equipment manufacturer (OEM) replacement component for heavy-duty commercial vehicles, most notably:

  • Foton Auman Trucks: Specially designed for Foton Auman heavy-duty truck platforms, including GTL, EST, and G-series tractors, rigid cargo carriers, and tippers.

  • Multi-Axle Chassis Platforms: Universally mapped to the middle axle braking system of tandem-drive or multi-axle heavy transport trucks (such as 6×4 and 8×4 configurations) to eliminate rear brake lag.

• Rapid Braking Response: Overcomes long wheelbase air travel delay, delivering immediate service brake application and reducing overall stopping distances.

• Integrated Exhaust Muffler: Equipped with an acoustic dampening silencer core at the discharge port to minimize high-pressure pneumatic blast noise during release.

• Heavy-Duty Die-Cast Housing: Manufactured from premium aluminum alloy to resist severe road grime, environmental moisture, and heavy chassis vibrations.

• Linear Pressure Control: Engineered with a low crack opening pressure for stable, predictable, and synchronized braking performance under varying loads.

When servicing or swapping the H4356A02002A0 middle axle relay valve, inspecting the following adjacent air brake components ensures complete system safety:

• Middle Axle Brake Chambers: Downstream actuators driven by this valve; must be checked for internal diaphragm fatigue or physical air leaks.

• Replacement Silencer Core: The acoustic muffler insert; needs periodic replacement if clogged with carbon residue, oil sludge, or dust to prevent sticky brake release.

• Pneumatic Fittings & Air Lines: High-tensile nylon lines feeding ports 1 (supply), 2 (delivery), and 4 (control); fresh O-rings or thread sealants must be applied upon installation.

• Air Dryer Filter Cartridge: Located upstream in the primary air supply unit; keeping this filter fresh prevents water contamination and oil carryover from rotting the relay valve’s internal rubber seals.

Shaanxi JFDL Trading Co., Ltd specializes in truck spare parts with extensive industry expertise. Our components are compatible with major truck brands including SINOTRUCK HOWO, SHACMAN, FOTON, FAW, DONGFENG, XCMG, SANY, LIU GONG, BENZ, MAN, and Yutong bus. We offer comprehensive OEM and ODM services.

For more details, please contact us or leave your information.We will reply to you as soon as we see your message.