A7 Fuel Tank Fuel Pump Module

2024 GMC Sierra 2500 HD Denali UltimateSECTION A7 Fuel Tank Fuel Pump Module
GM3749582Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Chassis Wiring Harness
  • OEM Connector: 33180742
  • Service Connector: 19354078
  • Description: 8-Way F 2.8 Series, Sealed (L-GY)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-35 (VT) No Tool Required
II Not required J-35616-4A (PU) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
1 2.5 GY 120 Fuel Pump Control I -
2 2.5 YE / GY 4137 Fuel Pump Supply Voltage Phase 2 I -
3 2.5 WH / BN 4138 Fuel Pump Supply Voltage Phase 3 I -
4 0.5 WH 7444 Fuel Pump Assembly Shield Ground II -
5 0.75
0.5
BU / GN
BU / GN
1936
1936
Primary Fuel Level Sensor Signal
Primary Fuel Level Sensor Signal
II
II
L5P
L8T
6 0.5 BK / GN 6281 Fuel Level Sensor Low Reference II -
7 - 8 - - - Not Occupied - -
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.