We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cylindrical metal fuel water separator cartridge with drain valve and attached grommet

Baldwin Filters

Baldwin Filters BF46043-D Fuel/Water Separator accessory

SKU CH-EJB3-GFKPX

Fuel/water separator cartridge filters diesel to 5 microns with attached grommet and drain

  • Removes water from diesel fuel with 5 micron cartridge
  • Compact 10 1/4 in length fits tight engine bays
  • 3 7/32 in width allows easy filter housing access
  • Integrated drain valve simplifies water removal service
  • Attached grommet ensures positive seal during installation

Baldwin BF46043-D Fuel/Water Separator

The Baldwin BF46043-D is a cartridge-style fuel/water separator designed for diesel filtration systems. It removes water and contaminants at a 5 micron rating to protect injection components. The unit includes an attached grommet for installation and features a drain for collected water. It suits maintenance on compatible diesel engines and equipment.

Sustained filtration and water removal

Under continuous operation the separator traps particles down to 5 microns while allowing fuel to pass. The cartridge design supports consistent flow as contaminant loading increases over time. The integrated drain lets operators purge accumulated water without removing the housing. Performance remains steady through the service interval defined by the engine manufacturer.

Verify fitment and connection details

Confirm the outside diameter of 4 7/32 in and inside diameter of 1 1/4 in match your existing filter head or housing. The overall height of 3 3/4 in and length of 10 1/4 in must clear surrounding components. Thread size is listed as not applicable, so mounting relies on the grommet seal rather than threaded ports. Check that the 3 7/32 in width fits the available space before ordering.

Highlights

  • Removes water from diesel fuel with 5 micron cartridge
  • Compact 10 1/4 in length fits tight engine bays
  • 3 7/32 in width allows easy filter housing access
  • Integrated drain valve simplifies water removal service
  • Attached grommet ensures positive seal during installation

Specifications

BrandBALDWIN FILTERS

Questions about this item

How much heat does the BF46043-D generate when the diesel engine runs all day?

The separator has no moving parts or electrical load, so it adds no measurable heat to the fuel system during continuous operation.

Which fuel-line fittings must I already have to install the BF46043-D?

You need compatible diesel hose and clamps for the 1 1/4 in inside diameter ports, because the unit ships with an attached grommet but no threaded connections.

Will the 5 micron cartridge protect an older mechanical injection pump?

Yes, the 5 micron rating stops particles that accelerate wear in legacy rotary or inline pumps, extending their service interval.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.