21200HG00H Nissan THERMOSTAT ASSY, Price: 162.93$, Weight: 0.148kg


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

Nissan

21200HG00H

THERMOSTAT ASSY

82

0.148

2-3

162.93$

 

Originals

Make Number Name Availability Weight, kg Processing, days Price  
Nissan
21200HG00H 
THERMOSTAT ASSY
80
0.17
 Dispatch 48h
175.18$
 

Substitutions

Make Number Name Availability Weight, kg Processing, days Price  
Nissan
21200HG00F 
THERMOSTAT ASSY
0
0.541
-
127.10$
Not Available
MAXPART
2702000615 
THERMOSTAT,COOLENT-GLA(X156)
0
0.536
4-5
85.32$
Not Available

Engine Coolant Temperature Regulator Assembly

? This cooling-system valve is needed to keep the engine at the correct working temperature. It helps the motor warm up fast after start, then prevents overheating when you drive in traffic or under load. A stable temperature means better fuel economy, cleaner emissions, and longer engine life.

How It Works

Inside the housing is a wax-type element and spring. When coolant is cold, the valve stays closed, forcing coolant to circulate mainly inside the engine so it heats evenly. As temperature rises, the element expands and opens the valve, sending coolant to the radiator for heat release. This automatic control keeps the gauge steady and protects vital parts.

When It Fails

⚠️ If stuck closed, the engine can overheat fast, risking head gasket failure, warped cylinder head, and severe coolant loss. If stuck open, the engine may run too cool, causing weak cabin heat, higher fuel use, rough running, and carbon buildup. Leaks at the seal can also lead to low coolant and recurring overheating.

Compatibility

  • L300