Cabin Rear Suspension Shock Absorber CS-77 02 0069

Core Adaptation Information

Compatible Vehicle Models:
- SINOTRUK HOWO: T7H, A7, T5G, C7H series heavy-duty trucks, tractors and dump trucks
- SINOTRUK SITRAK: Partial models with matching rear cab suspension structure
Cross-Reference Models: AZ1664440070, WG1664440121 (same-series rear suspension air springs)
Applicable Replacement Scenarios: Damaged air bladders, air leaks, hydraulic damping failure, reduced shock absorption performance, abnormal cabin shaking
System Compatibility: Fully compatible with original cabin height adjustment systems, no need to recalibrate 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 3.8–4.2 kg
Free LengthApproximately 520 mm (±10 mm)
Compression StrokeApproximately 150 mm
Sealing StructureIntegrated rubber seal + metal gasket, zero-leakage design
Fatigue Life≥ 350,000 load cycles (per OEM test standard)
Fastener GradeGrade 10.9 galvanized high-strength steel, excellent rust and corrosion resistance

Core Product Advantages

OEM-Grade Perfect Fit: Strictly manufactured to match the original AZ1664440069 dimensions and performance parameters, enabling one-click bolt-on installation without debugging, improving maintenance efficiency by 60%.
Superior Shock Absorption Performance: The combination of 4-ply reinforced air bladder and double-acting hydraulic damping effectively filters road vibrations, reducing cabin shaking by 40% and significantly enhancing long-haul driving comfort.
Extreme Durability for Harsh Conditions: Reinforced 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.
Global Quality Certification: Complies with ISO 9001 and IATF 16949 standards, with ECE R134 certification for international market access.

Applicable Scenarios

Long-Haul Logistics Tractors: Reduce driver fatigue during cross-regional and cross-border transportation, improve driving safety.
Engineering & Mining Vehicles: Withstand rugged road conditions and heavy-load impacts, suitable for dump trucks, mixers and mining transport vehicles.
Commercial Vehicle Fleets: Routine maintenance and replacement to maintain fleet operation efficiency and reduce 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/Workshops: Core maintenance parts for SINOTRUK HOWO series models, meeting the needs of heavy-duty truck repair businesses.

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.