FASS BFC1001K FUEL SYSTEMS BILLET L5P 2017–2024 DURAMAX FUEL FILTER CAP

Product Description

Upgrade the factory plastic L5P fuel filter cap to billet strength. The FASS BFC1001K Billet Fuel Filter Cap is CNC-machined from 6061 aluminum, retains the stock 36mm socket interface, and adds a tool-free billet drain valve with 1/8" NPT port for a barb fitting. Designed to work with the OEM plastic fuel filter housing and FASS Drop-In Series systems on the L5P Duramax.

• 6061 billet aluminum construction; anodized finish
• 36mm socket for easy removal
• Billet drain valve for quick, clean water separator service
• 1/8" NPT port on valve for optional hose barb
• Made in the USA

Fitment

2017–2024 GM/Chevy 2500/3500 6.6L Duramax (L5P). Compatible with the factory plastic fuel filter housing and FASS L5P Drop-In Series systems.

Cross-Reference / Related FASS Items (CPP Diesel only)

• FASS DIFSL5P1001 — L5P Drop-In Series (2017–2023)
• FASS NDTSC13180F140G — No-Drop 140GPH (2017–2019)
• FASS NDTSC13250F220G — No-Drop 220GPH (2017–2019)
• FASS NDTSC13290F240G — No-Drop 240GPH (2017–2019)

Installation Instructions

Get the latest guides at the official manuals hub: FASS Installation Manuals

FAQs

Why replace the OEM plastic cap?
The factory plastic cap is prone to rounding during service and cracking in extreme cold. The billet cap resists damage and adds a drain valve to simplify maintenance.

Will this fit with my FASS Drop-In system?
Yes. BFC1001K is designed to work with the OEM plastic housing and FASS L5P Drop-In Series systems.

Do I need special tools?
No—reuse your 36mm socket for removal. The integrated valve allows tool-free draining of the separator.

Specifications for Fass BFC1001K