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Dear Valued Customer
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You Are Buying 
Brand: ISUMO
Designed to meet or exceed OE specifications
Electrical Connector
(Pigtail Wiring Harness)
of
Knock (Detonation) Sensor
Quantity:4 Pieces
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PART# 
EC1224 X 4 
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Cross-Reference
8961520090
89615-06010
89615-0H010
8961506010
896150H010
KS225
SU6247
5S234
0261231193
0 261 231 193
5945 35
5945-35
594635
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Specifications:
| Connector Gender | Female | 
| Connector Quantity | 1 | 
| Connector Shape | Oval | 
| Material | ABS Plastic | 
| Mounting Type | Bolt Mount | 
| Terminal Gender | Male | 
| Terminal Quantity | 2 | 
| Terminal Type | Blade | 
| Electrical Connector Included | Yes | 
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Fits:
| LEXUS | GSF | 2016-2020 | 
| LEXUS | IS F | 2008-2014 | 
| LEXUS | LS600H | 2008-2016 | 
| LEXUS | LX570 | 2008-2021 | 
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Knock Sensor (KS)
The Knock sensor generates an AC voltage created from the frequency of 
poor combustion in the engines combustion chambers. A mechanical fault within the motor 
creating a rapping sound may create false signals from this sensor. Ignition timing and the 
air/fuel ratio are adjusted to compensate for this condition.
Location: The Knock sensor is located on the engine block and in some applications under 
the intake manifold.
Failure Symptoms: Malfunction Indicator Light (MIL) illumination, failed emission test, 
pre-detonation or “ping”, increased emission levels, low engine power
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