‌Genuine Sinotruk HOWO A7 Air Brake Hose WG9918530007 - OEM Reinforced Rubber Hose Assembly

‌Genuine Sinotruk HOWO A7 Brake System Air Hose (Part No. WG9918530007)‌

This OEM ‌reinforced rubber hose‌ transports compressed air between brake valves and chambers on HOWO A7 trucks. It maintains critical air pressure integrity (8-12 bar) for safe brake application/release cycles, preventing system pressure drops during heavy braking maneuvers.

‌Technical Specifications‌:

• ‌Part Number‌: WG9918530007 (2024 reinforced version)
• ‌Compatibility‌: HOWO A7 T7H/G series with Knorr/WABCO air brakes (2016-Present)
• ‌Hose Construction‌:
  • Inner Tube: EPDM rubber (oil/fuel resistant)
  • Reinforcement: 3-ply high-tensile polyester braid
  • Outer Cover: Weather/ozone-resistant CR rubber
• ‌Dimensions‌:
  • Length: 850mm
  • Inner Diameter: 12mm
  • Outer Diameter: 18mm
• ‌Pressure Rating‌:
  • Working Pressure: 15 bar
  • Burst Pressure: 75 bar
• ‌Temperature Range‌: -40°C to +120°C continuous
• ‌End Fittings‌: M12x1.25 brass swivel nuts (nickel-plated)
• ‌Certifications‌: DOT 571.109, ISO 7628, ECE R106, SAE J1402

‌Performance Advantages‌:
Leak Prevention‌: Triple-layer construction maintains <0.25 bar/min pressure loss
 ‌Flex Endurance‌: Survives 5 million flex cycles at 90° angle (SAE J1137)
Kink Resistance‌: Reinforced helix prevents flow restriction
 ‌Abrasion Protection‌: 3mm extra-thick outer layer
Quick Installation‌: Pre-assembled fittings with torque indicators

‌Why Genuine OEM?‌

• Matches factory routing brackets (no chafing)
• Eliminates ABS fault codes from pressure fluctuations
• 40% thicker reinforcement vs aftermarket hoses
• Withstands steam cleaning/road chemicals
• 3-year/unlimited mileage warranty

‌Risk Warning‌:
 Non-OEM hoses cause:

• Brake lag (0.5s delay at 80km/h = +22m stopping distance)
• Chamber corrosion from moisture ingress
• Emergency brake activation from pressure loss

‌Installation Criticals‌:

• Torque fittings: 35-40Nm (do not overtighten)
• Verify 50mm clearance from exhaust components
• Pressure test at 10 bar after installation
• Replace in pairs when servicing brake axles