GM Genuine FICM Fuel Banjo Bolt Kit (2001-05) 6.6L Duramax LB7 & LLY (pair)

This GM Genuine fuel banjo bolt kit is designed for 2001–2005 6.6L Duramax LB7 and LLY engines and provides a matched pair of replacement banjo bolts for the FICM or fuel filter housing connections. Using genuine GM hardware helps ensure the correct thread pitch, length, shoulder, and internal passage sizing so the bolts clamp and seal properly with OEM fittings and fuel lines.

On early Duramax trucks, the factory banjo bolts at the filter head and related junctions are exposed to vibration, corrosion, and repeated service, which can lead to damaged threads, rounded heads, or compromised sealing surfaces. Replacing tired hardware with new OE banjo bolts during fuel system work helps restore proper clamping force and reduces the risk of leaks or air intrusion that can cause hard starts, low fuel pressure, or drivability issues.

Because this kit covers both LB7 and LLY applications, it suits daily driven work trucks and towing-focused Duramax builds that still rely on the original style fuel system layout. The hardened steel construction and OE-spec design are intended to stand up to high-pressure diesel use and the under-hood environment typical of trucks that see many years of real-world duty.

These banjo bolts are a smart addition whenever the fuel filter head is rebuilt or replaced, fuel lines are updated, or any signs of seepage or dampness are observed at the stock banjo connections. Pairing new bolts with fresh sealing washers gives the best chance of a long-lasting repair and helps keep the fuel system tight and free of nuisance leaks.

For shops and owners maintaining early Duramax platforms, using a GM Genuine banjo bolt kit instead of generic hardware provides better fitment confidence and supports long-term reliability, especially on trucks that are expected to stay in service for many more miles.