What is this on the fuel sending unit? 05 LLY

GM Duramax - 04.5-05 LLY Duramax - Fuel System - OEM Fuel System

Chevy Dual Fuel Tanks: Fuel Gauge Wiring Diagram & Troubleshooting Q&A

This kit allows the use of -10 (5/8) hose from the billet pickup to the lift pump on LB7 Duramax trucks. The OE plastic sending unit head is modified

Fuel Tank Bulkhead kit for Dmax LB7

Fuel Sending Unit (For use with aftermarket lift pumps) for 2005

DURAMAX FUEL TEMPERATURE SENSOR REPLACEMENT & QUICK DIAG TIPS

05-06 2005 2006 LLY 6.6L Duramax Fuel rail pressure sensor pigtail

Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel

Fleece FPE-SF-GM-0410 SureFlo Performance Sending Unit For 04.5-10 Silverado/Sierra 2500/3500 Duramax

11 Common 6.6 LLY Duramax Problems And How To Fix Them

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HOW TO Silverado Duramax Fuel Sending Unit Replacement

Location of Fuel feed hose and fuel return line LLY