
The FASS BFC1001K Billet Filter Cap Kit is a high-quality replacement for the factory plastic fuel filter cap on your 2017-2024 GM 6.6L Duramax L5P. Unlike the OEM cap, which is prone to rounding off and cracking, this billet aluminum cap is built to last.
- Durable Construction: Made from 6061 billet aluminum for superior strength and durability.
- Easy Installation: Replaces the factory cap directly, without requiring any modifications.
- Billet Drain Valve: Allows for tool-free draining of the fuel filter.
- 1/8" NPT Port: Provides a convenient connection point for a barb fitting.
- USA-Made Quality: Designed and manufactured in the USA to ensure the highest standards of quality.
Upgrade your L5P Duramax with the FASS BFC1001K Billet Filter Cap Kit and enjoy peace of mind knowing that your fuel system is protected from the elements and ready for anything.

The FASS BFC1001K Billet Filter Cap Kit is a high-quality replacement for the factory plastic fuel filter cap on your 2017-2024 GM 6.6L Duramax L5P. Unlike the OEM cap, which is prone to rounding off and cracking, this billet aluminum cap is built to last.
Durable Construction: Made from 6061 billet aluminum for superior strength and durability.
Easy Installation: Replaces the factory cap directly, without requiring any modifications.
Billet Drain Valve: Allows for tool-free draining of the fuel filter.
1/8" NPT Port: Provides a convenient connection point for a barb fitting.
USA-Made Quality: Designed and manufactured in the USA to ensure the highest standards of quality.
Upgrade your L5P Duramax with the FASS BFC1001K Billet Filter Cap Kit and enjoy peace of mind knowing that your fuel system is protected from the elements and ready for anything.[...]
The FASS BFC1001K Billet Filter Cap Kit is a high-quality replacement for the factory plastic fuel filter cap on your 2017-2024 GM 6.6L Duramax L5P. Unlike the OEM cap, which is prone to rounding off and cracking, this billet aluminum cap is built to last.
- Durable Construction: Made from 6061 billet aluminum for superior strength and durability.
- Easy Installation: Replaces the factory cap directly, without requiring any modifications.
- Billet Drain Valve: Allows for tool-free draining of the fuel filter.
- 1/8" NPT Port: Provides a convenient connection point for a barb fitting.
- USA-Made Quality: Designed and manufactured in the USA to ensure the highest standards of quality.
Upgrade your L5P Duramax with the FASS BFC1001K Billet Filter Cap Kit and enjoy peace of mind knowing that your fuel system is protected from the elements and ready for anything.