Carquest Premium Fuel Pre-Filter Spin-On with Sensor Port is designed to keep modern diesel engines running at maximum efficiency by capturing particulate and water before they reach the primary fuel filter stage. Built in the USA, this pre-filter is engineered to meet or exceed OE performance standards across the full recommended service interval. With an integrated sensor port, it provides compatibility with applications requiring electronic monitoring of fuel or water levels.

Specifications include a spin-on pre-filter for diesel modules with an integrated sensor port (M12 × 1.75 thread). It is designed for water and particulate removal as a first line of defense in multi-stage fuel filtration systems. Dimensions and sensor requirements should always be verified against OE housing and head specifications before installation.

Cross-references include WIX 33654, Donaldson P550881, Fleetguard FF165/FF5420 (verify per application), and Baldwin equivalents (verify OE match), giving you multiple trusted alternatives across brands.

Commonly used in medium- and heavy-duty diesel fuel modules that require a 33654-style pre-filter with sensor provisions. Applications include select Freightliner, International, Kenworth, Peterbilt, and Volvo diesel platforms. Always confirm head thread and sensor compatibility before ordering.

Disclaimer: The information provided, including specifications, cross-references and vehicle applications, is for reference only. Variations may exist by application, engine, and OE system requirements such as thread type, fuel compatibility, micron rating, and pressure ratings. Customers are responsible for verifying all physical specifications (dimensions, thread size, fitment, etc.) before ordering. Low Country Filters is not liable for incorrect part orders.