3-Pin 357919321 VW Unsealed Male & Female Connector – Passat / Golf Temperature Sensor Harness

Direct-fit replacement for Volkswagen OEM part number 357919321, a 3-pin unsealed connector used for temperature sensor harness connections on VW Passat (B3/B4) and Golf (MK2/MK3) platforms. The 357 prefix identifies this as a VW Passat B3/B4 platform part.

Key Specifications

• OEM Part Number: 357919321
• Pin Count: 3
• Seal Type: Unsealed (for dry, protected environments)
• Wire Gauge: 18 AWG (0.5 mm²)
• Wire Length: 5.5 inches (140 mm)
• Housing Material: PA66 nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 10A per pin
• Package: 1 set (1× male + 1× female with wire)

VW Part Number Decoded – 357919321

• 357 – Vehicle platform code (VW Passat B3/B4, 1988–1997)
• 919 – VW commodity code for temperature sensors and related harness
• 321 – Specific connector variant (3-pin, unsealed)

Compatible VW Applications

• VW Passat (B3/B4, 1988–1997): Coolant temperature sensor and HVAC harness
• VW Golf (MK2/MK3, 1983–1997): Engine temperature sensor wiring
• VW Jetta (MK2/MK3): Shared platform temperature sensor connector
• VW Vento: European market Golf III equivalent

Fault Codes Linked to 357919321 Connector Failure

• P0116–P0118 – Engine Coolant Temperature (ECT) sensor circuit faults
• VCDS: 00537 – Coolant Temperature Sensor (G62) implausible signal

Frequently Asked Questions

Q: What is the mating connector for 357919321?
A: This listing includes both the male plug and female socket as a complete mated pair. Both housings share the same OEM part number 357919321.

Q: What crimping tool is needed?
A: Use a ratchet crimper rated for 18 AWG (0.5 mm²) – Engineer PA-09 or equivalent.

Package Contents

1 × 3-Pin Male Connector (357919321) with 18 AWG wire
1 × 3-Pin Female Connector (357919321) with 18 AWG wire and terminal inserts