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3979505 Volvo Air Filter Housing | Advanced Filtration Architecture
3979505 Volvo Air Filter Housing
Engineered for VOLVO FH/FM series trucks (1993-2021), the 3979505 Volvo Air Filter Housing (3979505, 8149963) utilizes glass-reinforced polyamide construction with 35% fiber content. The dual-stage sealing system combines silicone gaskets with integrated compression ribs, achieving 0.02µm particle retention efficiency. Precision-molded mounting brackets align with factory air intake geometry (±0.3mm tolerance), while UV-stabilized surfaces maintain structural integrity across temperature ranges (-40°C to +125°C). The service-friendly design allows filter replacement in under 90 seconds without specialized tools.
Airflow Optimization
Designed for VOLVO D13 and D16 engines, the housing maintains 98.5% volumetric efficiency at 2,500 RPM. The turbulence-reducing inlet geometry directs airflow through 140° gradual expansion zones, minimizing pressure drop (0.8 kPa at maximum airflow). Six M8 stainless steel fasteners with corrosion-resistant coating secure the housing to the intake manifold, while the integrated drain channel prevents moisture accumulation in the filter chamber. The modular design accommodates both standard and cyclonic pre-cleaner systems without modification. Service indicators include visual inspection windows and pressure differential ports compatible with standard diagnostic tools.
Material Specifications
| Component | Specification |
|---|---|
| Primary Material | PA6-GF35 polyamide |
| Surface Treatment | UV-resistant polymer coating |
Manufactured using 850-ton injection molding presses, the housing features consistent wall thickness (3.2mm ±0.15mm) for optimal vibration damping. The color-stabilized compound resues fading under direct sunlight exposure, while the ribbed exterior structure increases bending stiffness by 40% compared to conventional designs. All mating surfaces undergo CNC machining post-molding to ensure perfect flatness (0.1mm maximum deviation). The captive hardware system uses M6 brass inserts molded directly into the polymer matrix, eliminating loose fasteners during maintenance procedures.
Key Features
- ▶ Dual-stage air sealing
- ▶ UV-stabilized surfaces
- ▶ Service-friendly design
Quality Certifications
- ▶ ISO/TS 16949 certified
- ▶ ECE R29 compliant
- ▶ 100% leak tested
Compatible with VOLVO FH12, FH16, FM9, FM13 trucks manufactured between 1993-2021 using OE references 3979505 and 8149963
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