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FASS DFD4000 Duramax Fuel Filter Delete – Fits 2001–2016 GM 6.6L Duramax | For Use with FASS Fuel Air Separation Systems

FASS DFD4000 Duramax Fuel Filter Delete – Fits 2001–2016 GM 6.6L Duramax | For Use with FASS Fuel Air Separation Systems

Regular price $163.13 CAD
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FASS DFD4000 Duramax Fuel Filter Delete – Fits 2001–2016 GM 6.6L Duramax | For Use with FASS Fuel Air Separation Systems

Eliminate unnecessary maintenance and improve fuel flow with the FASS DFD-4000 Duramax Fuel Filter Delete Kit, designed for 2001–2016 GM 6.6L Duramax diesel engines. This fuel filter delete is engineered for use after installing a FASS Fuel Air Separation System, which already provides superior filtration—making the factory fuel filter redundant.

By replacing the OEM fuel filter with this spin-on canister delete, you’ll reduce service intervals and save money on filter replacements. The kit allows unrestricted fuel flow directly to the engine and includes all necessary hardware for a clean, professional installation.


Key Features:

  • Application: 2001–2016 GM 6.6L Duramax (LB7, LLY, LBZ, LMM, LML)
  • Part Number: DFD-4000
  • Compatibility: Designed for use with FASS Titanium and Titanium Signature Series Fuel Systems
  • Function: Replaces factory fuel filter after FASS installation
  • Benefits: Improves fuel flow, reduces maintenance, and eliminates unnecessary filter changes
  • Installation: Includes all required hardware for easy bolt-on installation
  • Construction: Durable spin-on canister design for long-term reliability

Ideal For:

  • Duramax owners running a FASS Fuel Air Separation System
  • Reducing fuel system maintenance and service costs
  • Improving fuel delivery efficiency and engine performance

Optimize your Duramax diesel system with the FASS DFD-4000 Fuel Filter Delete—engineered for performance, reliability, and long-term savings.

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