This fuel primer bulb sealing kit eliminates the leak-prone OEM primer bulb in your 2001–2016 Chevy and GMC 2500 / 3500 trucks with 6.6L Duramax diesel engines. When running an aftermarket positive displacement lift pump like the Fleece PowerFlo, this fuel primer bulb sealing kit allows you to eliminate the leak prone primer bulb from your fuel system. Bad seals in the fuel filter head cause the primer to lose the vacuum needed to pull fuel from the tank, introducing air into the fuel system that can cause hard starts and stalling.

Fitment

• 2001–2004 Chevy Silverado / GMC Sierra 2500 / 3500 -- LB7
• 2004.5–2005 Chevy Silverado / GMC Sierra 2500HD / 3500HD -- LLY
• 2006–2007 Chevy Silverado / GMC Sierra 2500HD / 3500HD -- LBZ
• 2007.5–2010 Chevy Silverado / GMC Sierra 2500HD / 3500HD -- LMM
• 2011–2016 Chevy Silverado / GMC Sierra 2500HD / 3500HD -- LML

Product Details

• Function: Removes the factory primer bulb and removes the ability to prime fuel at the fuel filter head assembly.
• Sealing Cap: Includes a 1/8" NPT port to feed a low pressure fuel gauge or cap it off with the included NPT plug.
• Hardware: Kit includes two screw options (standard and metric)—thread in by hand each screw type and use the thread pitch with the best fitment.
• Included Components: Fuel primer cap, 1/8 inch NPT plug, and fasteners.
• Weight: 2.0 lbs.
• Package Dimensions: 3.0" wide x 2.0" high x 3.0" long.

Installation

There is variation amongst the model years, so always test first by hand to verify the thread pitch on your vehicle. This kit is only recommended if you have an aftermarket lift pump assembly.

Check local emissions regulations before purchase. Professional installation is recommended.

Get the right part the first time.