Engine Coolant Temperature For Keeway RK5 QJMotor SRK 250 250RR SRT 550X SX SRT 600 SX Fit For KEEWAY RK5 250 QJMotor SRK250 SRK250 250RR SRT550 X 550SX SRT600 SX water-cooled motorcycles thread size plug terminal layout match mounting port for direct plug play installation without Built-in sensitive thermistor delivers accurate real-time coolant temperature signal to to adjust fuel injection ignition timing Solid brass sensing probe integrated rubber sealing ring effectively coolant leakage resist under long time temperature operation Stable signal output maintains consistent radiator fan control dashboard temperature display to avoid engine overheat damage during street touring riding