Denso 193-1000 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Toyota and Lexus

Denso 193-1000 is an engine coolant temperature sensor built to OE standards for accurate temperature reporting and stable engine management. It uses a female 2-terminal pin connector and an exact-fit design for direct replacement on many Toyota, Lexus, and Scion applications.

For vehicles such as the Toyota Tacoma, Toyota Camry, Lexus GX460, and Lexus RX350, this sensor helps the engine control module read coolant temperature correctly so fuel injection, ignition timing, and transmission shifting stay properly calibrated. The Denso 193-1000 is a practical OE-style replacement when the original sensor is no longer reading accurately.

Key Features

• OE-quality engine coolant temperature sensor from Denso
• Precise sensing elements for accurate coolant temperature input
• Exact-fit replacement for many Toyota, Lexus, and Scion models
• Female connector with 2 pin terminals
• No wiring harness included
• Cross-references Standard Ignition TX109 and Toyota 89422-33030 for the same application

Product Details

Denso’s Engine Coolant Temperature Sensor line focuses on accurate signal delivery to the vehicle’s engine management system. This part number, 193-1000, is used across a wide range of Toyota and Lexus platforms, including long-running applications on the Toyota 4Runner, Toyota Tundra, Toyota Corolla, Lexus ES350, and Lexus IS300. It is also listed for newer applications such as the 2023 Toyota Highlander and 2023 Lexus RX500h.

Because coolant temperature affects cold-start fueling, idle quality, ignition timing, and shift strategy, a worn or inaccurate sensor can create drivability concerns. This Denso sensor restores the temperature signal the system expects, supporting consistent operation across the broad fitment range.

What This Sensor Helps Address

• Incorrect coolant temperature readings
• Hard starting or rough cold starts
• Unstable idle caused by inaccurate engine temperature input
• Fuel mixture and timing issues tied to sensor drift
• Transmission shift behavior affected by coolant temperature data

Installation Notes and Tips

• Verify connector style before installation: female connector, 2 terminals, pin type.
• Inspect the cooling system and sensor port for corrosion or residue before fitting the new sensor.
• Use the vehicle service procedure for coolant level and sensor replacement to avoid air pockets in the system.
• Confirm the exact year, make, and model match against the fitment list before ordering.

Quality Assurance

Denso manufactures this engine coolant temperature sensor to strict OE standards with precise sensing elements and an exact-fit design. The part is built for direct replacement use on confirmed Toyota, Lexus, and Scion applications, including Toyota Tacoma, Toyota Camry, Lexus GX460, and Lexus RX350 fitments. Part number 193-1000 is also referenced by multiple aftermarket and OE listings for the same application.