Primary Fuel Filter Assembly K37-1010-304001200

This primary fuel filter assembly is designed to pre-filter diesel fuel by removing water and larger contaminants before it reaches the secondary filter or fuel injection system. It helps maintain fuel system integrity and supports reliable engine performance in heavy-duty applications.

• Material: Aluminum filter head with integrated water separator
• Function: Filters out water and coarse particles from diesel fuel
• Design: Compact housing with spin-on filter element
• Fitment: Compatible with select Kenworth and Peterbilt trucks (verify with specific engine and chassis configuration)
• Installation: Installs in the primary stage of the fuel system using factory-style mounting and fuel line connections

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