12Pin Female Green Car Aftermarket Stereo Audio Connector 33472-1204 – TS30359-12P-21-3 Sealed Automotive Receptacle for Reliable Signal Transmission

Engineered to deliver consistent performance in demanding environments, the TS30359-12P-21-3 is a premium 12-pin female connector designed as a direct replacement for the 33472-1204 OEM part. Featuring a distinctive green housing, this sealed receptacle ensures secure and stable connections in automotive audio systems, control modules, and aftermarket stereo installations. Built for durability and precision, it supports seamless integration in cars, yachts, UTVs, and other vehicles where reliable electrical connectivity is essential. Whether used in factory repairs, custom harness builds, or system upgrades, this connector combines advanced sealing, robust materials, and global compliance to meet the needs of professionals and enthusiasts alike.

• Product Model: TS30359-12P-21-3

• Connector Type: 12-Pin Female Housing

• Housing Color: Green

• Mating Plug: TS30359-12P-11-3

• Housing Material: PBT+GF15% or PA66+GF30%

• Terminal Options: Copper Alloy, Brass, Phosphor Bronze

• Sealing System: Mat Seal with Cavity Diaphragm

• Retention Mechanism: Two-Piece Housing with Wedge Lock

• Quality Assurance: 100% Inspected Before Shipment

• Compliance: IATF 16949, ISO14001, RoHS

• Minimum Order: 1,000 Pieces

• Delivery Time: 2–15 Days

Precision Replacement for 33472-1204 Automotive Connectors

The TS30359-12P-21-3 is engineered to match the exact specifications of the original 33472-1204 connector, ensuring a perfect fit and reliable electrical performance in a wide range of vehicle systems. Its 12-pin female configuration supports comprehensive audio, power, and control signal transmission, making it ideal for head unit upgrades, factory harness repairs, and custom infotainment installations. The green housing provides clear visual identification, helping technicians quickly differentiate it from other connectors during complex wiring jobs—reducing errors and improving installation speed.

Mat-Sealed Design for Superior Environmental Protection

Each terminal cavity features a pre-installed mat seal and protective diaphragm that activates when a wire is inserted, forming a waterproof seal around the insulation. This advanced sealing technology prevents moisture, dust, salt, and contaminants from entering the connector body—critical for vehicles exposed to rain, humidity, or marine conditions. Whether used in a convertible, boat, or off-road utility vehicle, this connector maintains signal integrity and resists corrosion, ensuring long-term reliability even in harsh operating environments.

Dual-Retention Housing for Vibration Resistance

Designed for high-vibration applications, the TS30359-12P-21-3 utilizes a two-piece housing system with a secondary wedge lock. After Terminals are crimped and inserted into the primary housing, the wedge is engaged to lock all contacts securely in place. This dual retention mechanism prevents terminal backout caused by engine vibration, road shock, or thermal expansion—common issues in automotive and industrial systems. The result is a stable, durable connection that maintains electrical continuity over time, even under extreme mechanical stress.

High-Performance Thermoplastic Construction

Manufactured from either PBT+GF15% or PA66+GF30%, the housing delivers exceptional resistance to heat, impact, and chemical exposure. These glass-reinforced materials maintain their structural integrity across a wide temperature range, ensuring reliable performance in both freezing winters and hot engine bays. The green color offers UV resistance and helps preserve the connector’s appearance over time, while also providing a clear visual cue for system identification during assembly and maintenance.

Versatile Terminal Compatibility for Custom Builds

This connector supports copper alloy, brass, and phosphor bronze terminals, giving users the 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-21-3 offers a dependable solution for both professional installers and DIY enthusiasts.

Complete Connector System for Automotive and Marine Use

The TS30359-12P-21-3 is designed to mate with the TS30359-12P-11-3 male plug, forming a secure, sealed interface ideal for audio, control, and sensor wiring. 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 full solution for wiring harness builders, repair technicians, and OEM manufacturers.

Ideal for a Wide Range of Vehicle Applications

Typical applications 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 Services with Custom Mold Capabilities

We offer comprehensive customization options for brands and system integrators, including private labeling, unique pin configurations, and dedicated mold development. Our engineering team provides full 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.

Quality-Controlled to Global Automotive 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 Global Shipping and Technical Support

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.