Standard Ignition LSF129 Fuel Level Sensor

Reliable Fuel Level Sensor for Infiniti M35h, M37, M56, Q50, and Q70

The Standard Ignition LSF129 fuel level sensor is designed as a direct replacement for select Infiniti models, ensuring accurate fuel measurement and consistent performance. This sensor features a durable plastic construction and includes a float for precise fuel level readings.

Key Features of Standard Ignition LSF129 Fuel Level Sensor

• Direct replacement sensor compatible with Infiniti M35h, M37, M56, Q50, and Q70
• Plastic material housing for corrosion resistance and durability
• Includes float for accurate fuel level detection
• Finger style sender contact design for reliable signal transmission
• Three male wire lead terminals with four wires for secure electrical connections
• Non-adjustable design for straightforward installation
• Does not include wiring harness or gaskets

Detailed Description of the LSF129 Fuel Level Sensor

The Standard Ignition LSF129 fuel level sensor is engineered to meet OEM specifications for Infiniti vehicles including the M35h, M37, M56, Q50, and Q70. Constructed from durable plastic, this sensor resists fuel and environmental exposure. The included float moves with the fuel level inside the tank, providing accurate readings to the vehicle’s fuel gauge. The finger style sender contact design ensures consistent electrical contact, while the three male wire lead terminals facilitate a secure connection to the vehicle’s wiring system. This sensor is a direct replacement part, designed to fit precisely without modification.

Common Applications and Issues Addressed

• Resolves inaccurate or fluctuating fuel gauge readings
• Replaces faulty or damaged fuel level sensors in Infiniti M35h, M37, M56, Q50, and Q70
• Eliminates intermittent fuel gauge failures caused by worn sender contacts
• Restores proper fuel level monitoring for improved vehicle operation
• Addresses sensor float malfunctions affecting fuel measurement

Installation Notes and Tips

• Ensure the vehicle is parked on a level surface before installation
• Disconnect the battery to prevent electrical shorts during replacement
• Remove the fuel tank access panel or drop the tank as required for your specific Infiniti model
• Handle the float carefully to avoid damage during installation
• Verify all wire lead connections are secure and free of corrosion

Quality Assurance and Warranty Information

Standard Ignition manufactures the LSF129 fuel level sensor to meet strict quality standards, ensuring reliable performance and durability. This part is tested for fit, form, and function to match OEM specifications. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.