Fuel Filter (In-Tank Assembly) > HYUNDAI SONATA IV (EF) & KIA OPTIMA / MAGENTIS (GD) 2.0L / 2.5L / 2.7L V6 GASOLINE ENGINE > 31911-38204-K | AFTERMARKET PART (PARTS MALL Supplier)
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PARTS MALL Aftermarket Component (The
-Ksuffix or similar code is often used for Korean aftermarket parts, and the reference to "PARTS MALL" confirms it's a replacement from a major Korean supplier). -
Original Equipment (OE) Part Number Replaced: 31911-38204 (Genuine Hyundai/Kia MOBIS OE number).
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Component Name: Fuel Filter Assembly / Element (The filtration unit inside the fuel pump module).
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Primary Applications (Confirmer): This filter is designed as a direct replacement for the mid-2000s mid-sized sedans:
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Hyundai Sonata IV (EF Chassis): Fits various Gasoline models (approx. 2001–2005). Confirms your Sonata EF.
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Kia Optima / Magentis (GD/MS Chassis): Fits various Gasoline models (approx. 2001–2005). Confirms your Optima 2004.
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Filter Type: This is an in-tank filter, integrated into the fuel pump module inside the fuel tank.
This part number, 31911-38204-K, is an Aftermarket Fuel Filter Assembly sourced from a Korean manufacturer or supplier, such as PARTS MALL Corporation. Parts Mall specializes in providing high-quality replacement parts that are designed to be functionally and dimensionally equivalent to the Original Equipment Manufacturer (OEM) component, 31911-38204. This provides a reliable and cost-effective alternative to the genuine part.
This in-tank filter assembly is a critical component for the fuel system of the Hyundai Sonata EF and Kia Optima 2004:
MPI System Protection: These vehicles utilize Multi-Port Injection (MPI) systems. The filter's primary function is to meticulously clean the fuel, preventing microscopic contaminants from causing damage to the electric fuel pump motor or clogging the precision fuel injectors.
Pressure Regulation: For this platform, the filter assembly is complex, being integrated into the fuel pump module and typically including the fuel pressure regulator. When using an aftermarket part, it is crucial that it strictly adheres to the OE specifications for flow and pressure. Reputable Korean suppliers like Parts Mall ensure these critical parameters are met for stable engine performance.
OE-Equivalent Fitment: The filter is a direct substitute for the in-tank unit in the EF/GD platform, ensuring a proper fit and seal upon installation.
Fitment Assurance: The filter is designed to be fully interchangeable with the OE part 31911-38204 for the Hyundai Sonata EF and Kia Optima/Magentis 2004 gasoline engine models.
Compatible Vehicle (Primary Applications - Check VIN for final confirmation):
Hyundai Sonata IV (EF) 2.0L / 2.7L V6 Gasoline (2001–2005)
Kia Optima / Magentis (GD/MS) 2.0L / 2.5L V6 Gasoline (2001–2005)
Part Number:
Aftermarket Part Number: 31911-38204-K (Supplied by Parts Mall or similar Korean Aftermarket Brand)
Original Equipment (OE) Number Replaced: 31911-38204
Part Type:
✔ Fuel Filter (In-Tank Assembly / Element) (Aftermarket Replacement, Sonata EF / Optima GD Specific)
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