12Pin Female Black Car Aftermarket Stereo Audio Connector 33472-1201 – TS30359-12P-21 High-Durability Receptacle for Automotive & Marine Signal Wiring

When upgrading or repairing modern vehicle audio systems, a reliable, high-performance connector is essential. The TS30359-12P-21 delivers exactly that—a robust 12-pin female housing engineered as a direct replacement for the 33472-1201 OEM connector. Featuring a sleek black housing, this sealed receptacle offers excellent compatibility with factory harnesses and aftermarket stereo installations in cars, yachts, UTVs, and off-road vehicles. Designed for durability, precision, and environmental resistance, it ensures stable signal transmission across audio, power, and control circuits, making it a trusted choice for installers, repair shops, and OEM manufacturers alike.

Direct 33472-1201 Replacement with Black Housing for Easy Identification

The TS30359-12P-21 is a high-precision female connector designed to replace the 33472-1201 connector in automotive audio and control systems. The black housing provides a clean, professional appearance and serves as a visual identifier to distinguish it from green, brown, or grey variants in complex wiring setups. This color-coding helps reduce installation errors and speeds up service in multi-connector environments. With its 12-pin layout, it supports full signal transmission for stereo systems, amplifiers, navigation units, and factory harness modifications, ensuring seamless integration in both OEM and aftermarket applications.

Advanced Mat-Seal Design for Superior Environmental Protection

Each terminal cavity is equipped with a pre-installed mat seal and cavity diaphragm that compresses around the wire insulation when inserted. This creates a waterproof, dustproof barrier that prevents moisture, salt, and debris from entering the connector—critical for vehicles exposed to rain, high humidity, or marine environments. The sealing system maintains long-term reliability by preventing corrosion and signal degradation, even in harsh operating conditions such as off-road driving or coastal marine use.

Wedge-Lock Two-Piece Housing for Vibration Resistance

To ensure terminal stability under constant mechanical stress, this connector features a two-piece housing with a secondary wedge lock mechanism. After Terminals are crimped and inserted, the wedge is engaged to lock all contacts securely in place. This dual retention system prevents backout caused by engine vibration, road shock, or thermal expansion—common failure points in automotive and industrial systems. The result is a robust, long-lasting connection that maintains electrical continuity over time, even in high-vibration environments.

High-Performance Thermoplastic Construction for Long-Term Reliability

Manufactured from either PBT+GF15% or PA66+GF30%, the housing delivers exceptional resistance to heat, impact, and chemical exposure. These glass-reinforced materials maintain dimensional stability across a wide temperature range, ensuring reliable performance in extreme conditions—from freezing winter climates to hot engine compartments. The black color provides UV resistance and helps preserve the connector’s appearance over time, while also offering a discreet, professional look in OEM-style installations.

Versatile Terminal Compatibility for Custom Wiring Projects

This connector supports copper alloy, brass, and phosphor bronze terminals, giving users flexibility to optimize for conductivity, cost, and mechanical strength. Its standardized design is compatible with common crimping tools and widely used in aftermarket stereo upgrades, factory harness repairs, and custom wire harness manufacturing. Whether replacing a damaged connector or building a new harness from scratch, the TS30359-12P-21 offers a dependable solution for both professional installers and DIY enthusiasts.

Complete Connector System for Automotive and Marine Applications

The TS30359-12P-21 mates with the TS30359-12P-11 male plug to form a fully sealed, secure interface ideal for audio, control, and sensor circuits. It is part of a broader family of connectors available in multiple pin counts and housing colors (black, green, brown, grey), enabling flexible system design and color-coded identification. We also supply matching male housings and individual terminals upon request, providing a complete solution for wiring harness builders, repair technicians, and OEM manufacturers.

Applications Across Vehicles and Marine Systems

Typical uses include:

• Aftermarket car stereo and infotainment system installations

• Factory audio harness repair and replacement

• Marine radio, navigation, and entertainment system wiring

• Control modules in UTVs, ATVs, and agricultural machinery

• Custom wire harness manufacturing for OEMs and aftermarket brands

Its rugged, sealed design ensures consistent performance in both protected cabin environments and exposed outdoor installations.

OEM & ODM Support with Custom Mold Development

We offer full customization services for brands and system integrators, including private labeling, unique pin configurations, and dedicated mold creation. Our engineering team provides end-to-end support from concept to mass production, ensuring every custom connector meets exact technical, aesthetic, and compliance requirements. With fast tooling turnaround and scalable manufacturing, we help businesses bring high-quality, branded solutions to market efficiently and cost-effectively.

Compliant with Global Automotive and Environmental Standards

Every unit undergoes 100% inspection before dispatch, including continuity testing, visual checks, and verification of 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 environmental responsibility—ensuring confidence for both end users and system integrators.

Fast Delivery and Technical Assistance

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

About TSCN – Delivering Precision Connectivity for Demanding Industries

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

Please compare and check your connector matches our connector on the photos. If unsure, click on the item inquiry and attach photos of your connector or the part that it plugs into and we'll confirm it for you ASAP.

Can't find the connector you need? Email us to mandy@tscn.com.cn and we'll try to locate one.

ZHEJIANG TONGSHENG ELECTRONIC CO.,TLD are founded in 1998, we are a ISO 9001 and ISO/TS16949 certificated professional manufacturer engaged in automotive aftermarket audio connector and wire harness, terminals and mold development.

Our automotive products are widely used in car audio entertainment connection, one-button start, new energy wiring harness, intelligent remote start wiring harness etc.

We are OEM/ODM available, we performs "excellent quality, super connector" as our honest management principles actively, and provide customers with professional solution service. Our main customer are in North America, Southeast Asia, Europe etc.

This TS30359 series is alternative to Molex MX150 Mat-Sealed Female Connector series, we have four color versions, black, grey, green and brown. Black equal to key A code, grey equal to key B code, green equal to key C code, brown equal to key D code. This family of products is available in 4, 6, 8, 12, 16 and 20 pins. Terminals and mating male housings are also available upon request.

The TS30359 Sealed Connector System is compatible with a wide range of automotive and commercial vehicle applications. It provides efficient power and signal transmission, allowing for seamless communication between various components and systems. The connector system's current rating of up to 22.0A ensures efficient power delivery, supporting the demanding requirements of modern vehicles.

Its robust construction and sealing properties provide protection against dust, water, and other contaminants, ensuring reliable operation in challenging environments.

Our TS30359 series is a trusted solution for power and signal connectivity in automotive and commercial vehicle applications. Its high current rating, durability, and compatibility make it an ideal choice for demanding industry requirements.