YLCNC 6189-0443 3 PIN Automotive Alternator Connector Waterproof Harness Plug

Industry data shows that connector failures account for a significant share of automotive electrical faults, especially in 3-pin circuits exposed to moisture. The YLCNC YLCNC-0784 is a 3-pin sealed automotive wire harness plug that cross-references OE NO. 6189-0443, offering wire-to-wire waterproof protection with both male and female types are available. All units are CE, IATF16949 and RoHS certified; samples are available and bulk stock is maintained for repair shops, distributors and harness factories.

If you need samples, you can place an order through our online store link: www.ylcnc-auto.com

Specifications

Company Strengths

• 18 Years Production Experience

• 11,000 ㎡ Production Base

• 270+ Employees

• 15,000+ Product Types

• IATF16949 Certified

• Professional R&D & Mold Team

• Full Customization & Domestic Replacement

• Stable Quality & On-Time Delivery

Product Advantages

1. Vibration-resistant mating: The positive-locking wire-to-wire design maintains constant contact pressure, preventing signal dropouts caused by road vibration and thermal expansion.

2. Certified manufacturing quality: Produced under CE, RoHS and IATF16949 systems, with 100% inspection before shipment to ensure every plug meets specification.

3. Direct OE alternative: The YLCNC-0784 cross-references OE NO. 6189-0443, offering identical 3-pin pinout and housing dimensions for hassle-free replacement in existing harnesses.

4. Moisture-proof sealing: Each of the 3 cavities is fitted with a single wire seal, creating a watertight barrier that protects contacts from humidity, mud and chemical exposure.

5. Wide vehicle compatibility: Suitable for use across Toyota, Nissan, Lexus and other automotive applications requiring a 3-pin sealed connection.

6. PBT flame-retardant housing: Heat-resistant and dimensionally stable, resisting deformation and cracking under long-term high-temperature exposure in the engine compartment.

Main Application Scenarios

1. Factory-fit connector solution for Toyota, Nissan, Lexus applications, matching the original 3-pin mounting and pinout specifications.

2. Engine sensor connections, including coolant temperature, camshaft and crankshaft position sensors that demand stable 3-wire signaling.

3. Daytime running light and auxiliary lamp wiring, where the 3-pin sealed design protects against rain, snow and car wash exposure.

4. HVAC, wiper and convenience circuit connections where a dependable 3-pin sealed connector ensures long-term fault-free operation.

5. Aftermarket repair and harness rework where the original OE 6189-0443 connector is corroded, cracked or unavailable from dealerships.

Service Advantages

1. Customized Services: We develop products per customers’ drawings, samples and parameter requirements, and optimize product structures. Mould development and domestic alternative replacement are available.

2. Standard Services: Supply of standard products with steady production capacity and controllable lead time. Fast production and delivery for bulk regular orders.

3. Value-added Services: Professional technical support is provided. We can offer various qualification documents and test reports, with prompt after-sales response.

Video

Inspection Equipments

FAQ

Q1: Is this connector a cross-reference replacement for OE NO. 6189-0443?

A1: Yes. YLCNC-0784 is a cross-reference replacement for OE NO. 6189-0443, with the same 3-pin layout, PBT housing and single wire seal, fitting all original automotive applications of the 6189-0443 connector.

Q2: What wire gauge is compatible with this connector?

A2: Wire gauge, wire length and wire color can all be customized to meet your specific harness requirements. Contact our technical team with your wire specifications for a tailored solution.

Q3: What is the difference between PBT and PA66 housings?

A3: PBT offers excellent dimensional stability, heat resistance and electrical insulation, making it ideal for compact sealed connectors like this 3-pin type; PA66 is more commonly used for larger, heavy-duty housings that require higher impact toughness.

Q4: Is the connector waterproof?

A4: Yes. It uses a single wire seal design on each cavity that blocks water, dust and oil, making it suitable for wet or dirty environments such as engine compartments and underbody areas.

Q5: Can this connector be used in heavy-duty trucks and commercial vehicles?

A5: Yes. The sealed PBT housing and single wire seal design make it suitable for heavy-duty truck, construction equipment and commercial vehicle applications where durability and waterproof protection are essential.

Q6: Do you accept small batch trial orders? What is the MOQ?

A6: Small batch trial orders are accepted, and the specific MOQ can be negotiated flexibly. We fully cooperate with customers' testing and market expansion needs.