EuroTruckParts
20372039 Hinge Lower | ECE R55 EU 1993-2021 Heavy-Duty Cab Door System
VOLVO 20372039 Hinge Lower | Cab Door System Component
Heavy-Duty Door Hinge Mechanics
The 20372039 Hinge Lower precisely replaces VOLVO OEM reference 20372039. Constructed with cold-forged 41CrAlMo7-10 steel, this component maintains ±0.5mm manufacturing tolerance across all mounting surfaces. Quad-layer zinc-aluminum coating delivers 2,200+ hours neutral salt spray protection, specifically engineered for 1993-2021 model year FH/FM/FMX/NH series trucks. The reinforced pivot assembly supports ±4° angular compensation while handling door weights up to 150kg, with 14mm hardened pins ensuring structural integrity.
Cross-Model Compatibility Matrix
- ▶ FH12/FH16 (1993-2021)
- ▶ FM7/FM9/FM10 (1998-2005)
- ▶ FMX Series (2010-2021)
- ▶ NH Models (1999-2006)
- ▶ Euro II-VI Emissions
- ▶ Single/Extended Cab Variants
Maintains original 5.8kg ±2% mass specifications and M18x2.5 hardware requirements.
Construction Details
- ▶ 14mm case-hardened shafts
- ▶ ISO 4957 H11 tool steel
- ▶ 2.0mm coating system
Functional Attributes
- ▶ 100°±3° swing arc
- ▶ Self-aligning bushings
- ▶ Impact-resistant seals
Compatible with VOLVO commercial vehicles requiring OE component: 20372039
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