12 Way Black Quadlock Wiring Harness Automotive Electric Plug Backshell Cable Clamp 1-1355524-3 – TSVW12-12P-11BK High-Durability Male Connector for Vehicle Audio & Control Systems

Reliable electrical connections are essential in modern vehicles, where audio, control, and infotainment systems operate under constant vibration and environmental stress. The TSVW12-12P-11BK is a robust 12-pin black male Quadlock backshell engineered as a direct functional replacement for the 1-1355524-3 connector. Designed for use in cars, yachts, UTVs, and off-road machinery, this connector delivers secure signal transmission with excellent resistance to moisture, dust, and mechanical shock. Its sleek black housing offers both aesthetic integration and practical durability, making it ideal for OEM installations and aftermarket upgrades alike.

High-Performance 12-Pin Black Male Quadlock Connector for 1-1355524-3 Replacement

The TSVW12-12P-11BK is a precision-engineered male backshell designed to replace the 1-1355524-3 connector in automotive wiring systems. Its 12-way configuration supports full audio, power, and data routing, making it suitable for factory-installed infotainment units, aftermarket stereo upgrades, and control module repairs. The black housing provides a discreet, professional appearance that blends seamlessly into vehicle interiors while offering superior UV resistance and heat absorption stability—ideal for high-exposure areas like dashboards and engine compartments.

Industrial-Grade Materials for Maximum Resilience

Built from reinforced thermoplastics—either PBT+GF15% or PA66+GF30%—this connector withstands extreme temperatures, chemical exposure, and mechanical stress. These materials offer exceptional dimensional stability and impact resistance, ensuring long-term performance even in harsh environments. The black color enhances durability by reducing surface degradation from prolonged sunlight, making it particularly well-suited for marine electronics, off-road vehicles, and industrial equipment exposed to outdoor conditions.

Advanced Sealing Technology for Waterproof Performance

Each terminal cavity features a pre-installed mat seal and diaphragm that compress tightly around the wire insulation upon insertion. This dual-seal system creates a waterproof, dustproof barrier that prevents moisture ingress, corrosion, and contamination—common causes of intermittent faults and signal loss. Whether installed in a yacht’s navigation system or a UTV’s control harness, the TSVW12-12P-11BK maintains reliable connectivity in wet, salty, or dusty operating environments.

Secure Wedge-Lock Terminal Retention System

To prevent terminal backout caused by continuous vibration, this connector uses a two-piece housing with a secondary wedge lock mechanism. After Terminals are inserted into the primary housing, the wedge is slid into place, locking all contacts securely. This design eliminates the risk of accidental disconnection and ensures stable Electrical Contact over time—critical for applications involving engine vibration, rough terrain, or frequent thermal cycling.

Versatile Terminal Compatibility for Broad Application Use

The TSVW12-12P-11BK accepts copper alloy, brass, and phosphor bronze terminals, allowing users to optimize for conductivity, cost, and mechanical strength. It is compatible with standard crimping tools and widely used in both OEM production lines and field service repairs. Whether you're building a custom audio harness, replacing a damaged plug, or upgrading a factory system, this connector offers flexibility and reliability for professional installers and DIY technicians.

Complete Connector Pairing with Female Housing TSVW12-12P-21BK

This male backshell is specifically designed to mate with the TSVW12-12P-21BK female receptacle, forming a fully sealed, mechanically stable connection. Together, they ensure consistent signal integrity and environmental protection across thousands of mating cycles. As part of a scalable Quadlock series, these connectors are available in multiple pin counts and colors (black, white, green, brown), enabling color-coded identification and modular design for complex wiring systems.

Applications Across Automotive, Marine, and Off-Road Industries

Common applications include:

• Replacement for 1-1355524-3 in car audio and infotainment modules

• Repair and retrofitting of factory wiring harnesses

• Marine radio, GPS, and entertainment system installations

• Control circuits in UTVs, ATVs, and agricultural machinery

• Custom cable assemblies for OEM and aftermarket brands

Its rugged construction and environmental sealing make it suitable for both protected cabin environments and exposed outdoor installations.

OEM & ODM Solutions with Custom Mold Development

We provide comprehensive customization services, including private labeling, unique pin layouts, and dedicated mold creation. Our engineering team supports clients from concept to mass production, ensuring every custom connector meets exact technical, aesthetic, and regulatory requirements. With fast tooling development and scalable manufacturing, we help businesses deliver high-quality, branded solutions efficiently and competitively.

Compliant with Global Quality and Environmental Standards

All units undergo 100% inspection before dispatch, including continuity testing, visual checks, and verification of seal and lock engagement. Certified to IATF 16949 (automotive quality), ISO14001 (environmental management), and RoHS (hazardous substance compliance), our products meet the highest international standards for safety, reliability, and sustainability—giving customers confidence in every order.

Fast Turnaround and Technical Support Available

With a minimum order of 1,000 pieces and delivery times of 2–15 days, we support rapid fulfillment for distributors, manufacturers, and service providers worldwide. For product samples, technical drawings, or application guidance, contact our sales team at mandy@tscn.com.cn for prompt and professional assistance.

About TSCN – Delivering Precision Connectors for Demanding Applications

Zhejiang Tongsheng Electronic Co., Ltd. (TSCN) is a trusted manufacturer of high-performance automotive and industrial connectors. With over 25 years of experience, we specialize in durable, precision-engineered solutions that power reliable systems across global markets.

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