Automotive Front Seat Ergonomic Headrest Assembly with Height Adjustment

This independent front seat headrest assembly is custom-molded for passenger cars, wrapped in premium wine-red leather with vertical segmented stitching. The bottom features a black engineering plastic base integrated with a notch locking clip mechanism, paired with two metal electroplated mounting posts. Designed as a direct plug-in replacement system, it installs seamlessly onto original front passenger car seats. It balances automotive flame safety, neck pressure relief, and durable height adjustment performance.

Parameter
Features

Cushion Material	Automotive-grade high-density PUR polyurethane foam.
Foam Density	60 kg/m³; Compression permanent deformation ≤ 9% (Resists collapse over long-term use).
Flame Retardancy Standard	Complies with national standard GB 8410-2018 for automotive interior flame resistance; Low VOC, non-pungent odor.
Optional Core Upgrade	Internal filler upgradable with composite slow-rebound memory foam to enhance head and neck pressure-relief contouring.
Support Notch Rod Material	45# quenched and tempered hollow round steel; Electroplated surface for anti-corrosion protection.
Support Rod Diameter	φ10 mm to φ16 mm (Universal passenger car standard specifications).
Dual Rod Center Distance	Mainstream 140 mm / 160 mm (Precision custom molded per vehicle data).
Adjustment Mechanism	Mechanical up-and-down notched positioning; Side push-button unlock mechanism.
Height Adjustment Travel	Approx. 90 mm travel range across 8 to 10 fixed notched positions; Secure locking prevents slipping or dropping.
Base Material	High-strength modified PP engineering plastic; High impact resistance and shatter-proof durability.

Key Features & Selling Points:
- High-Density Fire-Retardant Foam: Formulated with 60 kg/m³ high-density PUR foam that meets GB 8410-2018 automotive flame retardancy standards while maintaining shape integrity over years of driver support.
- Precision Mechanical Height Locking: Offers a 90 mm height adjustment range across 8–10 notched stops with a side button release mechanism, preventing unwanted slipping or collapse.
- Heavy-Duty Electroplated Rods: Constructed with 45# tempered steel rods treated with anti-corrosion plating to ensure smooth vertical sliding and exceptional impact strength.
- Direct Plug-and-Play Fitment: Engineered with standard 140 mm/160 mm post spacing and φ10–φ16 mm rod diameters for fast, tool-free installation into factory seat sockets.