Standard Ignition LSF129 Fuel Level Sensor
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Standard Ignition

Standard Ignition LSF129 Fuel Level Sensor

Brand Standard Ignition LSF129
Fits INFINITI · 11 vehicles

Direct replacement. Installs as a direct replacement for the original fuel level sensor.

Finger-style sender. Uses a finger-style contact design for accurate fuel level sensing.

Plastic construction. Lightweight plastic housing with a float included.

Cross-references Standard Ignition LSF129, 250601MC0B and FLSB10057 for the same application. See all 5.

$123.63Free shipping
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Fuel Level Sensor for Infiniti Applications

Standard Ignition LSF129 is a direct replacement fuel level sensor built for accurate fuel tank level readings. It is engineered for select Infiniti models, including Q50, Q70, M35h, M37, and M56 applications, with OE-style fitment and sensor output.

Key Features

  • Direct replacement fuel level sensor for factory-style fitment
  • Plastic construction with finger-style sender contact design
  • Float included for fuel level measurement
  • 3-terminal male connection with wire lead terminals
  • 4-wire design; wiring harness not included
  • Not adjustable for fixed OE application use

Detailed Description

Standard Ignition LSF129 is a fuel level sensor designed to restore accurate fuel gauge operation in select Infiniti vehicles. This part number is used in 2011-2015 Infiniti applications and is built as a direct replacement, making it a practical choice when the original sender is worn, erratic, or no longer reporting fuel level correctly. The finger-style sender contact design and included float support consistent tank-level sensing, while the 3-terminal, wire-lead configuration matches the intended factory-style electrical setup. Standard Ignition LSF129 also cross-references LSS129 for the same application.

Fits 2014-2015 Infiniti Q50, N/A. Fits 2014-2015 Infiniti Q70, N/A. Fits 2012-2013 Infiniti M35h, N/A. Fits 2011-2013 Infiniti M37, N/A. Fits 2011-2012 Infiniti M56, N/A.

What It Helps Solve

  • Inaccurate fuel gauge readings
  • Fuel level readings that fluctuate or drop unexpectedly
  • Sender wear that causes intermittent gauge behavior
  • Replacement needs after a failed original fuel level sensor
  • Restoration of proper fuel tank level signal to the instrument cluster

Installation Notes and Tips

Verify connector style, terminal count, and wire-lead configuration before installation. This is a direct replacement part and is not adjustable, so it should be matched to the correct Infiniti fuel tank application. The wiring harness is not included, and gaskets are not included, so inspect related sealing components during service.

Quality Assurance

Standard Ignition supplies OE-style replacement electrical components for automotive repair applications. LSF129 is built to match the intended factory fitment and sensor layout for the listed Infiniti vehicles.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2015INFINITIQ50N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2015INFINITIQ70N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2014INFINITIQ50N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2014INFINITIQ70N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2013INFINITIM35hN/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2013INFINITIM37N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2012INFINITIM35hN/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2012INFINITIM37N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2012INFINITIM56N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2011INFINITIM37N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
2011INFINITIM56N/AThis Seat Heater Switch fits for accurate readings and optimal engine performance on the right side.
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — LSF129250601MC0BFLSB10057FLV504LSS129