What is this on the fuel sending unit? 05 LLY

Duramax Fuel Pickup Upgrades Huckstorf Diesel Pump and Injector

LLY Fuel Pressure Regulator, 2004.5-2005 Duramax - 400653

SureFlo Sending Units - Fuel System - 2004.5-2005 (LLY) - Chevy/GMC (Duramax) Fleece Performance Engineering, Inc.: Innovating Diesel Performance

What is this on the fuel sending unit? 05 LLY

Say Goodbye 1/4 Diesel Fuel Tank Hassles: Ultimate Solution With

6.6L Duramax Diesel Fuel Filter with Head Assembly│Replacement For 2005-2012 Chevy Silverado GMC Sierra 2500 HD 3500 HD with Water in Fuel Sensor│Replaces# 12642623, 12639448, 904517, Fuel Filters - Canada

Aftermarket lift pumps provide more fuel to your diesel engine but face issues at a 1/4 tank fuel level. The S&B Sending Unit allows you to drive to

Fuel Sending Unit (For use with aftermarket lift pumps) for OEM Fuel Tanks for 2004-2010 GM Duramax 6.6L LLY, LBZ, LMM

What is this on the fuel sending unit? 05 LLY

fuel level sensor?, Page 3