Crankshaft Position Sensor (CKP) > HYUNDAI SONATA (EF) & TRAJET & KIA OPTIMA (MS) 2.0L / 2.4L SIRIUS II GASOLINE ENGINE > 39310-38060 | AFTERMARKET PART
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Aftermarket Replacement Component (Manufactured in China, based on the '-C' suffix and common sourcing).
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Original Equipment (OE) Part Number: 39310-38060 (This is the OE number the part is designed to replace).
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Component Name: Crankshaft Position Sensor (CKP Sensor) (Also known as Crank Angle Sensor). This is typically a 3-Pin sensor.
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Primary Applications (Engine Specific): This sensor is designed to fit vehicles using the 2.0L and 2.4L SIRIUS II (G4BP/G4JS) Gasoline engines:
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Hyundai Sonata (EF/Sonata 5 Chassis): Fits 2.0L and 2.4L models (approx. 1998–2005). Confirms your Sonata 5 2004.
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Hyundai Trajet (FO Chassis): Fits 2.0L models (approx. 2000–2008).
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Kia Optima / Magentis (MS Chassis): Fits 2.0L and 2.4L models (approx. 2000–2006). Confirms your Optima 2004.
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Key Function: Supplies the Engine Control Module (ECM) with the primary timing reference for the engine, controlling ignition timing and sequential fuel injection.
This is an Aftermarket Crankshaft Position Sensor (CKP Sensor), corresponding to the original Hyundai/Kia OE part number 39310-38060. The suffix '-C' and the designation "CHINA PART" indicate that this is a non-original replacement component sourced from a Chinese manufacturer, designed to offer a lower-cost alternative to the Genuine MOBIS part.
This sensor is compatible with the Hyundai/Kia vehicles powered by the older, reliable 2.0L and 2.4L Sirius II Gasoline engines, which were foundational for the mid-size models of the late 90s and early 2000s.
The CKP sensor is critical for engine function:
Timing Signal: It reads the rotation of the crankshaft's reluctor wheel to provide the ECM with the necessary data for engine speed (RPM) and piston position (Top Dead Center).
Combustion Control: The ECM uses this data to precisely time the spark plugs and fuel injectors.
Note on Aftermarket: While aftermarket parts are cost-effective, their long-term signal quality and durability can vary compared to the Genuine OE part, which is crucial for sensors that impact engine timing and performance.
Fitment Assurance: The OE number 39310-38060 is correctly identified for the 2.0L / 2.4L Sirius II engine in the Hyundai Sonata 5 (EF), Trajet, and Kia Optima (MS) models listed.
Compatible Vehicle (Primary Applications - Check VIN for confirmation of 2.0L / 2.4L Sirius II Engine):
Hyundai Sonata (EF/Sonata 5) 2.0L / 2.4L (1998–2005)
Hyundai Trajet 2.0L (2000–2008)
Kia Optima / Magentis (MS) 2.0L / 2.4L (2000–2006)
Part Number:
Aftermarket Part Number: 39310-38060-C
Original Equipment (OE) Number Replaced: 39310-38060
Part Type:
✔ Crankshaft Position Sensor (CKP) (Aftermarket Replacement, 2.0L / 2.4L Sirius II Gasoline Specific)
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