‌Genuine Sinotruk HOWO AC Refrigerant Line Kit WG1642821011 HighLow Pressure Pipes (54) for Heavy Truck HVAC Systems

1. ‌Sinotruk HOWO Heavy-Duty AC Refrigerant Line Assembly - WG1642821011‌

   Ensure optimal HVAC system performance in extreme conditions with this complete refrigerant line kit engineered for HOWO truck models:

   ‌Technical Specifications‌

   1. ‌Premium Construction‌

      • Material: 6061-T6 aluminum alloy (high-pressure) + CRCA steel (low-pressure)
      • Inner lining: Barrier-type R134a-compatible rubber (SAE J2064 Class II)
      • Surface treatment: Anodized anti-corrosion coating

   2. ‌Pressure Performance‌

      • High-pressure line: 35 bar working pressure (SAE J639 compliant)
      • Low-pressure line: 8 bar sustained pressure
      • Burst pressure: 140 bar (high)/45 bar (low)

   3. ‌Precision Engineering‌

      • 5/8" OD high-side pipe (16mm)
      • 1/2" OD low-side pipe (13mm)
      • CNC-flared fittings (45° SAE standard)

   4. ‌Environmental Resistance‌

      • Temperature range: -40°C to 150°C
      • Salt spray tested: 1000h (ASTM B117)
      • Vibration resistance: 15G @ 10-200Hz

   5. ‌Compatibility‌

      • Truck models: HOWO ZZ3257/ZZ4257 series
      • AC systems: Sanden SD7H15/SD7V16
      • Refrigerant: R134a/R1234yf compatible
      • Model Years: 2016-2024

   6. ‌Quality Certification‌

      • 100% helium leak tested (≤1×10⁻⁶ mbar·L/s)
      • ISO 9001:2015 manufacturing process
      • Includes mounting brackets & O-rings (HNBR material)

   
   
   
   ‌Why Choose This Part?

After-Sales Support:

• 24/7 technical consultation via WhatsApp/email
• 12-month warranty with free return policy
• Local service centers in 15+ countries