FASS Fuel Filter Bundle – XWS-3002 & PF-3001

FASS Fuel Filter Bundle – XWS-3002 & PF-3001

$59.99
$59.99 $69.99
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FASS Fuel Filter Bundle – XWS-3002 & PF-3001
  • FASS Fuel Filter Bundle – XWS-3002 & PF-3001
  • FASS Fuel Filter Bundle – XWS-3002 & PF-3001
  • FASS Fuel Filter Bundle – XWS-3002 & PF-3001
  • FASS Fuel Filter Bundle – XWS-3002 & PF-3001
FASS Fuel Filter Bundle – XWS-3002 & PF-3001

FASS Fuel Filter Bundle – XWS-3002 & PF-3001

$59.99
$59.99 $69.99

Upgrade your diesel fuel system with this FASS Fuel Filter Bundle, featuring the XWS-3002 Extreme Water Separator and PF-3001 Fuel Filter. This OEM replacement set is designed for FASS Titanium Series, Titanium Signature Series, and Platinum Series systems — delivering superior filtration, fuel flow, and protection.


What’s Included:

  • 1x FASS XWS-3002 – Water Separator (20 Micron, Pre-filter)
  • 1x FASS PF-3001 – Fuel Filter (2 Micron, Post-filter)


Key Features:

  • Genuine FASS filters – trusted for high-performance diesel builds
  • Extreme water separation and contaminant removal
  • Extends fuel injector and pump life
  • Direct fit for FASS fuel air separation systems
  • Easy spin-on replacement – no modifications required
  • Made in the USA


Vehicle Compatibility:

Fits diesel trucks equipped with the following FASS fuel systems:

  • Dodge Ram 2500 / 3500 with 6.7L Cummins
  • Ford Super Duty F-250 / F-350 with 6.7L Power Stroke
  • Chevy Silverado / GMC Sierra 2500 / 3500 with 6.6L Duramax
  • Compatible with:
    • FASS Titanium Series
    • FASS Titanium Signature Series
    • FASS Platinum Series
⚠️ Not compatible with older 95 Series or discontinued FASS models.


Cross Reference Part Numbers:

 

XWS-3002 replaces:

  • FASS XWS-1002
  • Baldwin BF1259
  • Donaldson P551311

 

PF-3001 replaces:

  • FASS FF-1003
  • Baldwin BF7633
  • Donaldson P551315
  • Fleetguard FF5320


Shipping & Handling:

  • Ships in 1–2 business days
  • Tracked shipping from the USA
  • Packaged securely for shops and DIY use

Maintain peak fuel system performance with this FASS XWS-3002 + PF-3001 filter combo – the ultimate upgrade for your diesel rig.

Clean Fuel. Longer Life. Built for Power.

 

❓ FAQ

Q: On which specific FASS pump models can this filter bundle be installed?

A: This filter bundle is engineered specifically for aftermarket FASS Titanium Series, Titanium Signature Series, and Platinum Series fuel lift pumps. It is compatible across multiple heavy-duty diesel truck platforms (including Dodge Ram Cummins, Ford Power Stroke, and GM Duramax) that have been upgraded with these particular FASS systems. Note that these filters are not backward-compatible with legacy FASS units like the older 95 Series or other discontinued models due to updates in thread sizing and sealing geometry.

Q: Why do these two filters have completely different micron ratings, and which side does each go on?

A: The filters are designed to work as a progressive team to optimize fuel flow and maximize component protection.

  • The XWS-3002 is a 20-micron pre-filter and must be installed on the suction side of the pump (closest to the fuel tank water drain). It captures larger chunks of debris and acts as an extreme water separator, stripping moisture out before it can hit the pump gears.

  • The PF-3001 is an ultra-fine 2-micron final filter and must be installed on the pressure side (closest to the engine feed line). This dense filtration layer catches microscopic particulates, acting as a final shield for high-pressure injection pumps and fuel injectors.

Q: What are the exact step-by-step instructions for changing these filters without locking air in the fuel lines?

A: Because aftermarket FASS lift pumps move massive volumes of fuel, swapping these filters requires proper lubrication and a clean priming routine to ensure the system doesn't lose its prime or trap air loops:

1.Prep the work area and disconnect power:Position a clean bucket or catch pan underneath.

Locate your FASS pump assembly, which is typically mounted to the vehicle's frame rail near the fuel tank. Place a catch pan beneath the assembly. Turn off the truck's ignition and pull the main FASS wiring harness fuse out of its holder to prevent the pump from accidentally cycling during the swap.

2.Unscrew and remove the old filters:Loosen them counterclockwise.

Using a standard filter strap wrench, unscrew both old filters from the pump manifold head. Be careful, as both canisters will be filled to the brim with heavy diesel fuel. Empty the fuel out of the old filters into your container and dispose of it properly.

3.Inspect the housing studs and seals:Look closely at the aluminum mounting studs.

Check the threaded studs on the FASS pump head to ensure the old rubber sealing gaskets came off with the filters. If an old gasket is stuck up inside the manifold, peel it away. Take a clean, lint-free rag and wipe down the flat aluminum sealing surfaces on the pump head to remove dirt or road grit.

4.Pre-fill and lubricate the new filters:Fill the 2-micron filter only.

Take your new PF-3001 (2-micron) filter and fill it up with clean, fresh diesel fuel through the outer perimeter inlet holes before installing it—this prevents air loops. Do not pre-fill the XWS-3002 water separator. Lightly coat the top rubber sealing rings of both new filters with a thin film of clean engine oil or diesel fuel to guarantee a smooth, leak-free seal.

5.Spin on the new filters by hand:Hand-tighten only; do not use a wrench to tighten.

Thread the XWS-3002 onto the suction side and the PF-3001 onto the pressure side of the pump head clockwise. Spin them up until the rubber seals make flush contact with the metal base, then hand-tighten them firmly an additional 3/4 to 1 full turn.

6.Re-fuse and prime the fuel system:Forces remaining air back to the tank.

Re-install the FASS power harness fuse. Turn the truck's ignition key to the "RUN" position without cranking the engine. You will hear the FASS pump fire up and whine as it self-primes and purges trapped air bubbles through the return line back into the fuel tank. Leave the key in the "RUN" position for 30–45 seconds. Cycle the key off and back on twice before starting the vehicle, then check the frame rail for any leaks.

1.Prep the work area and disconnect power:Position a clean bucket or catch pan underneath.

Locate your FASS pump assembly, which is typically mounted to the vehicle's frame rail near the fuel tank. Place a catch pan beneath the assembly. Turn off the truck's ignition and pull the main FASS wiring harness fuse out of its holder to prevent the pump from accidentally cycling during the swap.
2.Unscrew and remove the old filters:Loosen them counterclockwise.

Using a standard filter strap wrench, unscrew both old filters from the pump manifold head. Be careful, as both canisters will be filled to the brim with heavy diesel fuel. Empty the fuel out of the old filters into your container and dispose of it properly.
3.Inspect the housing studs and seals:Look closely at the aluminum mounting studs.

Check the threaded studs on the FASS pump head to ensure the old rubber sealing gaskets came off with the filters. If an old gasket is stuck up inside the manifold, peel it away. Take a clean, lint-free rag and wipe down the flat aluminum sealing surfaces on the pump head to remove dirt or road grit.
4.Pre-fill and lubricate the new filters:Fill the 2-micron filter only.

Take your new PF-3001 (2-micron) filter and fill it up with clean, fresh diesel fuel through the outer perimeter inlet holes before installing it—this prevents air loops. Do not pre-fill the XWS-3002 water separator. Lightly coat the top rubber sealing rings of both new filters with a thin film of clean engine oil or diesel fuel to guarantee a smooth, leak-free seal.
5.Spin on the new filters by hand:Hand-tighten only; do not use a wrench to tighten.

Thread the XWS-3002 onto the suction side and the PF-3001 onto the pressure side of the pump head clockwise. Spin them up until the rubber seals make flush contact with the metal base, then hand-tighten them firmly an additional 3/4 to 1 full turn.
6.Re-fuse and prime the fuel system:Forces remaining air back to the tank.

Re-install the FASS power harness fuse. Turn the truck's ignition key to the "RUN" position without cranking the engine. You will hear the FASS pump fire up and whine as it self-primes and purges trapped air bubbles through the return line back into the fuel tank. Leave the key in the "RUN" position for 30–45 seconds. Cycle the key off and back on twice before starting the vehicle, then check the frame rail for any leaks.

 

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