Standard Ignition LSF122 Fuel Level Sensor

Brand Standard Ignition LSF122
Connector Gender Female
Connector Type Plug In
Contents Sensor
Terminal Gender Female
Terminal Type Blade Plug
Fits Chevrolet and GMC · 50 vehicles

OE-match replacement. Provides proper fit, form, and function.

Accurate fuel readings. Corrects improper fuel level readings with high reliability.

Plug-in design. Female connectors and blade plug terminals simplify installation.

Cross-references Dorman - HELP 74957, 19121637 and FLSC20002 for the same application. See all 6.

$55.37Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.

Fuel Level Sensor for GM Trucks

Standard Ignition LSF122 is a direct OE-match fuel level sensor for select Chevrolet Silverado and GMC Sierra applications. It is built to restore accurate fuel gauge readings in demanding operating conditions while maintaining proper fit, form, and function.

  • Direct OE-style replacement for factory fuel level sensor applications
  • Helps correct inaccurate or erratic fuel gauge readings
  • Engineered for reliable operation in harsh environments
  • Includes a rubber gasket where applicable for installation support
  • Extensively tested to OE specifications for fit and performance
  • Connector type: plug in; connector gender: female
  • Terminal configuration: female blade plug

Detailed Product Overview

This Standard Ignition fuel level sensor is designed for Chevrolet Silverado 1500, Silverado 1500 HD, Silverado 2500 HD, Silverado 3500, and GMC Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, and Sierra 3500 models from the 1999-2004 range. The LSF122 is intended to deliver proper signal output to the fuel gauge so the driver can monitor fuel level with greater confidence. This part cross-references Dorman - HELP 74957 for the same application.

What It Helps Fix

  • Fuel gauge reading empty when fuel remains in the tank
  • Fuel gauge reading full or near full incorrectly
  • Intermittent or unstable fuel level readings
  • Signal issues caused by a worn or inaccurate sender
  • Replacement needs on GM truck fuel tank service jobs

Installation Notes and Tips

Verify connector style and terminal layout before installation. The plug-in female connector and blade plug terminal design should match the original sensor connection on the vehicle. If the application uses a gasket, confirm the sealing surface is clean and undamaged before assembly. For fitment, this part is listed for 1999-2004 Chevrolet Silverado 1500, 2001-2003 Chevrolet Silverado 1500 HD, 2001-2003 Chevrolet Silverado 2500 HD, 2001-2003 Chevrolet Silverado 3500, 1999-2003 GMC Sierra 1500, 2001-2003 GMC Sierra 1500 HD, 1999-2003 GMC Sierra 2500, 2001-2003 GMC Sierra 2500 HD, 2001-2003 GMC Sierra 3500, and 2001 Chevrolet C1500.

Quality Assurance

Standard Ignition states that this replacement sensor is engineered to OE specifications and tested for long service life. The design focus is accurate fuel level reporting, dependable operation, and consistent fitment for GM truck applications.

This part fits 50 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2004ChevroletSilverado 15004.3LV6N/A
2004ChevroletSilverado 15004.8LV8N/A
2004ChevroletSilverado 15005.3LV8N/A
2003ChevroletSilverado 15004.3LV6N/A
2003ChevroletSilverado 15004.8LV8N/A
2003ChevroletSilverado 15005.3LV8N/A
2003ChevroletSilverado 1500 HD6.0LV8N/A
2003ChevroletSilverado 2500 HD6.0LV8N/A
2003ChevroletSilverado 35006.0LV8N/A
2003ChevroletSilverado 35008.1LV8N/A
2003GMCSierra 1500N/A
2003GMCSierra 1500 HD6.0LV8N/A
2003GMCSierra 2500N/A
2003GMCSierra 2500 HD6.0LV8N/A
2003GMCSierra 2500 HD8.1LV8N/A
2003GMCSierra 35006.0LV8N/A
2003GMCSierra 35008.1LV8N/A
2002ChevroletSilverado 15004.3LV6N/A
2002ChevroletSilverado 15004.8LV8N/A
2002ChevroletSilverado 15005.3LV8N/A
2002ChevroletSilverado 1500 HDN/A
2002ChevroletSilverado 2500 HD6.0LV8N/A
2002ChevroletSilverado 35006.0LV8N/A
2002ChevroletSilverado 35008.1LV8N/A
2002GMCSierra 1500N/A
2002GMCSierra 1500 HDN/A
2002GMCSierra 2500N/A
2002GMCSierra 2500 HD6.0LV8N/A
2002GMCSierra 2500 HD8.1LV8N/A
2002GMCSierra 35006.0LV8N/A
2002GMCSierra 35008.1LV8N/A
2001ChevroletC1500N/A
2001ChevroletSilverado 1500N/A
2001ChevroletSilverado 1500 HDN/A
2001ChevroletSilverado 2500 HD6.0LV8N/A
2001ChevroletSilverado 35006.0LV8N/A
2001ChevroletSilverado 35008.1LV8N/A
2001GMCSierra 1500N/A
2001GMCSierra 1500 HDN/A
2001GMCSierra 2500N/A
2001GMCSierra 2500 HD6.0LV8N/A
2001GMCSierra 2500 HD8.1LV8N/A
2001GMCSierra 35006.0LV8N/A
2001GMCSierra 35008.1LV8N/A
2000ChevroletSilverado 1500N/A
2000GMCSierra 1500N/A
2000GMCSierra 2500N/A
1999ChevroletSilverado 1500N/A
1999GMCSierra 1500N/A
1999GMCSierra 2500N/A
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 7495719121637FLSC20002FLV124LSS122SK1208