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USD 77.9
Part #: FASSDFD-4000

FASS DFD-4000 Duramax Fuel Filter Delete

2001-2016 GM 6.6L Duramax
Part #: FASSDFD-4000
★★★★★ ★★★★★ 1 Reviews
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The FASS DFD-4000 Duramax Fuel Filter Delete for your 2001-2016 GM 6.6L Duramax is for use after the installation of a FASS Fuel Air Separation System. Once installed the factory fuel filter is no longer needed and can be easily removed by using this Factory Fuel Filter Canister Delete. Because your Duramax fuel filter is located after the FASS filtration system you will still need to replace the factory filter every 5,000-8,000 miles. This filter delete kit will replace your now useless fuel filter with a spin on canister that will allow fuel to flow freely into the engine, saving you even more money. This spin on Fuel Filter Delete Kit is a perfect addition to your FASS Titanium diesel fuel pump and comes with all required hardware for a professional installation.

  • Installs In Place Of Stock Filter 
  • Allows For Unrestricted Fuel Flow To Engine 
  • Built-In Gauge Port For Fuel Pressure Monitoring
  • Eliminates Costs Associated With Changing Stock Filter
Note: This product is ONLY for use on trucks that already have another form of filtration such as a FASS Titanium Series Fuel System. 


  • MFG. Number DFD-4000
  • Manufacturer Name FASS
  • Shipping Weight 1.50 lb.
  • Shipping Length 4 in.
  • Shipping Width 4 in.
  • Shipping Height 4 in.
  • Fuel Type Diesel
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
4.0/5 Stars out of 1 Reviews
(Sarasota, FL) | December 8th, 2015
Product is exceptional quality. Does not include replacement gasket for WIF.

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Most Popular Questions

What happens to the water sensor when this is installed?
View Staff Answer 

The water sensor can be reinstalled on the bottom of the filter delete housing.

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