20398386 Volvo Lamp Housing | Multi-Generation Lighting Platform
20398386 Volvo Lamp Housing | Multi-Generation Lighting Platform
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20398386 Volvo Lamp Housing
Designed for VOLVO's FM/FH series heavy-duty trucks, the 20398386 Volvo Lamp Housing (20398386, 3980870, 3090971, 1062548) features UV-resistant polymer construction with precision-engineered mounting surfaces. The glass-reinforced polypropylene structure maintains dimensional stability across extreme temperature ranges (-40°C to +90°C). Injection-molded alignment guides ensure ±0.25mm positioning accuracy for headlamp assemblies, while integrated drainage channels prevent moisture accumulation. The matte black textured finish resists stone chips and chemical corrosion, with pre-drilled holes matching original wiring harness configurations. Modular design allows independent replacement of left (20398385, 3980869) and right components without full assembly disassembly.
Multi-Generation Compatibility
Engineered for VOLVO trucks manufactured between 1993-2018, these lamp housings accommodate both halogen and LED lighting systems. The 8191562 and 8191304 variants feature updated mounting brackets for 2012+ model years while maintaining backward compatibility. Six M6 threaded inserts preserve factory torque specifications (18Nm ±15%), with anti-vibration rubber gaskets reducing harmonic resonance by 37%. The symmetrical design allows cross-compatibility between FM7/FM10/FM12 chassis configurations, while color-stable polymer maintains 95% UV resistance after 8,000 hours of accelerated weathering tests. Pre-marked service access points enable bulb replacement without complete housing removal.
Structural Engineering
| Feature | Detail |
|---|---|
| Core Material | 20% mineral-filled polypropylene |
| Surface Finish | Texture-molded anti-glare surface |
Utilizing 850-ton injection molding presses, the housings achieve 0.03mm/mm flatness across sealing surfaces. The dual-wall construction provides 28% better impact resistance than single-layer designs, with integrated reinforcement ribs increasing torsional stiffness by 41%. Chemical-resistant formulation withstands road salt, diesel fuel, and alkaline cleaners. All edges feature radiused contours meeting ECE R45 standards, while the snap-fit lens retention system reduces installation time by 40% compared to screw-fastened designs. The thermal expansion coefficient matches original VOLVO components (9.1×10⁻⁵/°C), eliminating stress fractures during temperature cycling.
Design Features
- ▶ Multi-model compatibility
- ▶ Stone chip protection
- ▶ Moisture management system
Quality Assurance
- ▶ ISO 9001 certified production
- ▶ ECE R112 optical compliance
- ▶ RoHS compliant materials
Compatible with VOLVO trucks using OE specifications 20398386, 3980870, 3090971, 1062548, 3980869, 3090972, 1062547, 20398385, 8191562, 8191304
20398386 Volvo Lamp Housing | Multi-Generation Lighting Platform
