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The Wix Filters 33674 is a spin-on fuel filter designed specifically for heavy-duty diesel applications, providing a direct OE replacement for certain Caterpillar, Claas, and industrial equipment with engines such as Cat 3406, Cat 3408, and others. It is engineered for secondary fuel filtration to protect high-pressure injectors and maintain your fuel system’s cleanliness.
This filter features an enhanced cellulose media with a filtration rating of 2.00 micron for capturing fine contaminants and water. Its body is constructed with corrosion-resistant materials, with a spin-on style design for easy installation. Key dimensional specs are height 237 mm, outer diameter 94 mm, inner diameter top closed, thread size 1-14.
The 33674 excels under severe conditions, offering high burst pressure of ~419 PSI and flow capacity in the range of 12-15 GPM. It’s ideal for industrial, agricultural, or mining equipment where maintaining fuel integrity is critical and failure is not an option.