FASS XWS-3002XL & PF-3001XL Fuel Filter Bundle
FASS XWS-3002XL & PF-3001XL Fuel Filter Bundle – For Titanium & Titanium Signature Series Systems
Upgrade your diesel filtration system with the FASS XWS-3002XL and PF-3001XL Filter Bundle, designed specifically for FASS Titanium and Titanium Signature Series Fuel Air Separation Systems. This high-performance filter set offers unmatched protection against fuel contaminants and water, helping your diesel engine run cleaner, longer, and stronger.
What’s Included:
- 1x XWS-3002XL Extreme Water Separator (20 Micron Rating – Pre-filter)
- 1x PF-3001XL Particulate Fuel Filter (2 Micron Rating – Final filter)
Key Features:
- Designed for use with FASS Titanium & Titanium Signature Series systems
- Advanced filtration media removes water, dirt, rust, and debris
- Increased capacity and flow rates for high-performance diesel builds
- Helps extend injector and fuel pump life
- Easy, direct replacement – no modifications needed
- Proudly made in the USA
Vehicle Compatibility:
Compatible with diesel trucks equipped with the FASS Titanium or Titanium Signature Series fuel systems, including:
- Dodge Ram 2500/3500 with Cummins
- Ford Super Duty with Power Stroke
- GM Silverado/Sierra with Duramax
- Suitable for high-performance, towing, and off-road diesel builds
🔍 Not compatible with older FASS systems (e.g., 95 Series). Always verify your system model before ordering.
Filter Placement Guide:
- XWS-3002XL (water separator) goes on the suction side
- PF-3001XL (fuel filter) goes on the pressure side
Shipping & Handling:
- Orders ship within 1–2 business days
- Shipped from the USA with tracking provided
Protect your diesel engine with FASS’s industry-leading filtration.
Clean Fuel = Peak Power. Order your XL filter set today!
❓ FAQ
Q: On which specific FASS pump models can this XL filter bundle be installed?
A: This filter bundle is engineered exclusively for the FASS Titanium Series and Titanium Signature Series aftermarket fuel lift pumps. It is compatible across multiple truck platforms (Ram Cummins, Ford Power Stroke, and GM Duramax) provided they have been upgraded with a Titanium-class FASS system. Note that these filters are not backward-compatible with legacy FASS units like the older 95 Series or HD Series pumps due to changes in the thread sizes and sealing geometry.
Q: Why do these two filters have completely different micron ratings, and which side does each go on?
A: The filters work as a progressive team to optimize flow and protection. The XWS-3002XL is a 20-micron pre-filter placed 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 reaches the pump gears. The PF-3001XL is an ultra-fine 2-micron final filter placed on the pressure side (closest to the engine feed line). This dense layer catches microscopic particles, acting as a final shield for high-pressure injection pumps and 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 solid priming routine to ensure the system doesn't lose its prime:
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.
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.
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.
Take the new PF-3001XL (2-micron) filter and fill it up with clean, fresh diesel fuel before installing it—this prevents air loops. Do not pre-fill the XWS-3002XL 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.
Thread the XWS-3002XL onto the suction side and the PF-3001XL 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.
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.