8942220010 Toyota SENSOR, DIESEL ENGINE WATER TEMPERATURE, Price: 46.39$, Weight: 0.031kg


Make Number Name Availability Weight, kg Ship in, Days Price

Toyota

8942220010

SENSOR, DIESEL ENGINE WATER TEMPERATURE

0

0.031

 Dispatch 48h

46.39$

Not Available

Originals

Make Number Name Availability Weight, kg Processing, days Price  
SANKEI
8942220010 
ELECTRICAL ITEMS
206
0.036
4-5
9.45$
 
Toyota
8942220010 
SENSOR, DIESEL ENGINE WATER TEMPERATURE
78
0.036
2-3
36.24$
 
HABASHI
8942220010 
ELECTRICAL ITEMS
0
0.046
4-5
7.17$
Not Available

Substitutions

Make Number Name Availability Weight, kg Processing, days Price  
SANKEI
KW408 
WATER TEMP UNIT 3RZ/3L
103
0.046
4-5
8.25$
 
Tama
HS104 
THERMO SWITCH 2C/4A
0
0.04
4-5
12.10$
Not Available
Taiho
HS104 
WATER TEMP. SENSOR
0
0.114
4-5
9.14$
Not Available

Diesel Coolant Temperature Sensor for Toyota Engines

This small sender reads engine water temperature and tells the ECU what the coolant is doing. On a Toyota diesel, it’s a key input for fueling, glow plug time, fan control, gauge reading, and emission strategy. A healthy sensor keeps starts clean, power smooth, and temps stable.

Why you need it ❗

Accurate coolant data helps the ECU set cold-start enrichment, injection timing, idle speed, and EGR. It also triggers the radiator fan and protects the engine from overheating. Without a correct signal, the system guessesβ€”and guesses cost money and parts.

How it works βš™οΈ

Inside is an NTC thermistor in a sealed brass body. As coolant warms, resistance drops. The ECU reads the voltage across the sensor and converts it to temperature. Threaded into the water jacket or housing, it reacts fast and feeds a stable signal under all loads.

What happens if it fails

  • Hard cold starts, rough idle, and black smoke
  • Poor fuel economy and flat throttle response
  • Radiator fan stuck on or not coming on in time
  • False dash gauge reading, overheating risk
  • Check Engine Light, codes like P0115–P0119
  • DPF regen issues on newer diesels

Tech notes and fitting tips ️

Test with a multimeter: resistance should drop as temperature rises. Install on a cool engine, use the correct seal or washer, and torque to spec (typically 15–25 Nm). Clean the connector, avoid overtightening, and bleed air from the cooling system.

Quality and benefits

OE-grade build, corrosion-resistant body, and fast thermal response. Restores accurate coolant data, smoother warm-up, better economy, and longer engine life on your Toyota diesel.