Dongfeng Kinalnd truck spare parts Speaker assembly 3775020-C0100

Built to deliver clear, balanced audio for truck drivers in noisy cab environments, this speaker assembly features a professional acoustic design. It integrates a 25mm soft-dome tweeter for crisp high frequencies (10kHz-20kHz) and a 165mm polypropylene woofer for robust low-mid frequencies (60Hz-8kHz), with a frequency response range of 60Hz-20kHz and a signal-to-noise ratio (SNR) of ≥88dB—eliminating static and ensuring speech and music remain audible over engine and road noise (up to 85dB). The woofer’s butyl rubber surround enhances bass response and reduces distortion (≤5% at 30W), while the tweeter’s neodymium magnet ensures high sensitivity (92dB/W·m), making it ideal for Kinland’s cab acoustics. It supports both music playback and in-cab communication (e.g., navigation prompts, fleet radio)

Engineered to endure the harsh mechanical environment of truck cabs, the 3775020-C0100 assembly features a durable construction. The speaker frame is made of glass fiber-reinforced ABS plastic (PA66-GF20) with a tensile strength of 250MPa, resisting deformation from cab vibration (10-500Hz) and accidental impacts (e.g., loading cargo). The woofer cone uses rigid polypropylene with a dust-proof textile cap, preventing dust and moisture from entering the magnetic circuit. A large-diameter ferrite magnet (Φ80mm) provides stable magnetic flux, ensuring consistent performance even under vibration. The speaker’s terminals are made of tinned copper with a corrosion-resistant coating, ensuring reliable electrical connection over time

Optimized to adapt to diverse truck operating environments, the speaker assembly exhibits exceptional environmental resilience. It operates stably within a temperature range of -30℃ to 85℃, adapting to frigid northern winters (where plastic components can become brittle) and high-temperature cab interiors (sun-exposed door panels). The speaker’s front grille is made of corrosion-resistant steel mesh (304 grade) with a powder-coated finish, resisting rust from road salt and moisture. The 2-pin connector uses HNBR rubber seals (IP65 protection) to block water and dust, making it suitable for trucks operating in rainy, dusty construction sites. The butyl rubber surround resists aging and swelling from diesel fumes and cleaning agents, extending service life

This speaker assembly is designed for easy installation and long-term cost savings for Dongfeng Kinland operators. Its lightweight design (1.2kg) and compact size (6.5-inch) allow single-person installation in 20 minutes using standard tools—no specialized audio equipment required. The OE-compatible design ensures perfect fit with the cab’s door panel, eliminating gaps that cause rattling (a common issue with aftermarket speakers). By delivering clear audio, it enhances driver comfort and reduces fatigue during long hauls, improving safety and productivity. The assembly’s service life (≥100,000km) is twice that of non-OE speakers, reducing replacement frequency. Backed by a 1-year/100,000km Dongfeng warranty, it avoids the poor performance of cheap alternatives and ensures reliable audio for truck cabs. For fleet operators, this translates to lower maintenance costs and higher driver satisfaction