Hengst H331WK Fuel Filter - In-Line

Hengst H331WK Fuel Filter for Mercedes-Benz Diesel Applications

The Hengst H331WK is an in-line fuel filter built for select Mercedes-Benz diesel vehicles that require biodiesel resistance and heating-element connectivity. It uses synthetic blend filter media to help maintain fuel cleanliness in demanding diesel fuel systems.

Key Features

• Synthetic blend filter media for diesel fuel filtration
• In-line fuel filter design for select Mercedes-Benz applications
• Includes connector for heating element (180 W)
• Biodiesel resistant construction
• Application-specific fitment for models such as Mercedes-Benz Sprinter 3500XD, GLK250, and E250

Detailed Description

Hengst H331WK is an OE-style fuel filter for Mercedes-Benz diesel platforms that need reliable in-line filtration and heating-element connection support. This part number is used across multiple Mercedes-Benz diesel models, including the Sprinter 2500, Sprinter 3500, GL350, ML350, GLK250, and E250, with fitment varying by year and configuration. This part cross-references KL 490D and WK 8016 x for the same application.

Built with synthetic blend media, the H331WK is intended for diesel fuel systems where filtration quality and fuel compatibility matter. It is also biodiesel resistant and, on listed applications, includes a connector for the 180 W heating element. For 2013-2015 Mercedes-Benz GLK250 applications, the listing also notes a water separator, while certain Sprinter applications specify a center probe and exclusion of the lubrication package.

What It Is Used For

• Replacing a clogged or restricted diesel fuel filter
• Restoring proper fuel flow in Mercedes-Benz diesel systems
• Addressing fuel contamination concerns in in-line filtration setups
• Supporting biodiesel-capable fuel system service intervals
• Maintaining heating-element connection on listed applications

Installation Notes and Tips

Verify the OE number and vehicle configuration before ordering, especially on Mercedes-Benz Sprinter, GLK250, and GL350 applications. Confirm whether your vehicle uses the heating-element connector, water separator, center probe, or lubrication package-specific setup shown in the fitment notes. Match the part number H331WK to the existing filter and compare connector style and housing details before installation.

Quality Assurance

Hengst is an established filtration brand used in automotive fuel and air management applications. The H331WK is built to meet the fitment and functional requirements listed for the covered Mercedes-Benz diesel vehicles.