RAEXON PTY LTD

PRODUCTS

Product Overview

  • Model: WG1664440201
  • Brand: SINOTRUK OEM / Premium Aftermarket (OEM-equivalent quality)
  • Product Type: Cabin Rear Suspension Air Spring Shock Absorber Assembly

Core Adaptation Information

  • Compatible Vehicle Models:
    • SINOTRUK HOWO: T7H, A7, T5G, C7H series heavy-duty trucks, tractors, dump trucks and mixers
    • SINOTRUK SITRAK: G7, C9H models with matching rear cabin suspension structure
    • Other SINOTRUK heavy-duty commercial vehicles with identical suspension interface
  • Cross-Reference Models: WG1664440202, AZ1664440069 (same-series rear suspension air springs)
  • Applicable Replacement Scenarios: Air bladder damage, air leaks, hydraulic damping failure, abnormal cabin shaking, reduced ride comfort, worn suspension components
  • System Compatibility: Fully compatible with original cabin height adjustment systems; no recalibration needed after installation

Detailed Technical Parameters

Air Bladder Material4-ply reinforced chloroprene rubber (CR), oil-resistant, ozone-resistant, anti-aging
Damping TypeDouble-acting gas-charged hydraulic damping
Maximum Working Pressure9–11 bar (130–159 psi)
Operating Temperature Range-45℃ ~ +85℃
Mounting Thread SizeM18×1.5 high-strength bolts at both ends
Assembly WeightApproximately 4.0–4.3 kg
Free LengthApproximately 530 mm (±10 mm)
Compression StrokeApproximately 160 mm
Sealing StructureIntegrated rubber seal + metal gasket, zero-leakage design
Fatigue Life≥ 380,000 load cycles (per OEM test standard)
Fastener GradeGrade 10.9 galvanized high-strength steel, excellent rust and corrosion resistance

Core Product Advantages

  • OEM-Grade Precise Fit: Strictly manufactured to match the original WG1664440201 dimensions and performance parameters, enabling direct bolt-on installation without debugging, improving maintenance efficiency by 60%.
  • Superior Shock Absorption Performance: The 4-ply reinforced air bladder and double-acting hydraulic damping system effectively filter road vibrations, reducing cabin shaking by 45% and significantly enhancing long-haul driving comfort.
  • Extreme Durability for Harsh Conditions: Reinforced CR rubber material resists abrasion, oil erosion and extreme temperatures; high-strength steel components prevent deformation under heavy loads, suitable for construction, mining and off-road transportation scenarios.
  • Cost-Effective Maintenance Solution: Assembly-type design allows targeted replacement of damaged rear suspension components, avoiding full suspension overhauls and cutting maintenance costs by 30–50%.
  • Intelligent Height Compatibility: Fully adapts to the original cabin height adjustment system, maintaining consistent ground clearance and ensuring stable vehicle passing performance on uneven roads.
  • Global Market Compliance: Meets ISO 9001 and IATF 16949 quality standards, with ECE R134 certification for international market access, supporting cross-border sales.

Applicable Scenarios

  • Long-Haul Logistics Tractors: Reduce driver fatigue during cross-regional and cross-border transportation, improving driving safety and operational efficiency.
  • Engineering & Mining Vehicles: Withstand rugged road conditions and heavy-load impacts, suitable for dump trucks, concrete mixers and mining transport vehicles.
  • Commercial Vehicle Fleets: Routine maintenance and replacement to maintain fleet operation stability and minimize vehicle downtime.
  • Emergency On-Site Repairs: Quick replacement for sudden air spring failures, ensuring vehicles return to service in the shortest time.
  • Auto Parts Distributors & Repair Shops: Core maintenance parts for SINOTRUK HOWO series models, meeting the needs of aftermarket repair businesses and cross-border trade.

Brand & After-Sales

Brand Guarantee: Produced by Raexon, relying on the integrated production capacity of industry and trade, strictly following international commercial vehicle parts production standards, focusing on the R&D, production and sales of commercial vehicle parts, and cooperating with well-known international brands to create high-quality parts with trustworthy quality.

After-Sales Guarantee: The product enjoys perfect after-sales guarantee service. For quality problems caused by non-human damage within the warranty period, free maintenance or replacement services can be provided. At the same time, professional technical consultation and installation guidance are provided to solve various problems encountered by customers in the use process, supporting bulk order customization and foreign trade export adaptation services.

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