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The BALDWIN FILTERS BF46113-D is a fuel and water separator element designed to remove free water and particulate contamination from diesel or gasoline fuel systems. Water intrusion in fuel lines accelerates injector wear, promotes microbial growth, and causes corrosion in fuel system components. This element traps and separates water before it reaches sensitive downstream components such as fuel injectors and high-pressure pumps. It measures 3-15/32 inches in outside diameter and 4-15/32 inches in overall length. Installation is performed by diesel technicians and fleet maintenance professionals as part of routine fuel system service intervals.
This separator element is suited for automotive and light-to-medium duty applications where fuel quality protection is critical. Typical installations include service intervals on diesel-powered trucks, vans, and commercial vehicles equipped with primary or secondary fuel water separator housings. The element is a drop-in replacement style unit sold individually, with a minimum order quantity of 12 units, making it appropriate for shop stock or fleet maintenance programs where consistent replenishment is needed.
Designed as an OEM-style replacement fuel water separator element compatible with Baldwin BF46113-D. Verify housing dimensions against the 3-15/32 inches OD and 4-15/32 inches OAL specifications before installation.
This element is serviced by diesel technicians and fleet maintenance professionals following the vehicle or equipment manufacturer's recommended fuel filter service interval. Depressurize the fuel system and shut off the fuel supply before removing the separator housing. Dispose of any accumulated water and fuel in accordance with local environmental regulations. Ensure the replacement element seats fully and the housing is hand-tightened to the manufacturer's specification to prevent air ingestion or fuel leaks.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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