2-Pin Water Temperature Sensor Connector — OEM 178390-2 / DJ70217Y-1.8-21, Toyota Camry Corolla

OEM-compatible replacement connector for the 2-pin water temperature (coolant temperature) sensor wiring harness used in Toyota Camry and Corolla vehicles. Compatible with OEM part number 178390-2, cross-referencing to DJ70217Y-1.8-21. A commonly needed connector for Toyota platform coolant temperature sensor repair.

Key Specifications

OEM part numbers: 178390-2 / DJ70217Y-1.8-21
Positions: 2 pin
Series: 1.8mm pitch
Housing material: Plastic housing + rubber seal
Contact material: Metal terminals
Sealing: Rubber seal (waterproof)
Gender: Female (primary) / Male (select option)
High-concern chemicals: None
Certification: CE

Why Choose This Connector?

Toyota OEM match — direct replacement for Camry and Corolla coolant temperature sensor harness
Restores accurate ECU readings — a secure connector ensures correct coolant temp data for fuel trim
Sealed 1.8mm series — protects sensor circuits from coolant and engine bay moisture
Robust plastic housing — withstands high-temperature engine bay environments
Widely needed Toyota part — used across Camry, Corolla, and compatible Toyota models