HomeBelts and Cooling > SensorsStandard Ignition FLS-52 Engine Coolant Level Sensor
Part #: FLS-52

Standard Ignition FLS-52 Engine Coolant Level Sensor

⚙️ 23 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$91.93Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Oldsmobile, and Pontiac, LeSabre, Park Avenue, 88, 98, Bonneville, Custom Cruiser, Century, and Delta 88
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition Engine Coolant Level Sensor FLS-52

The Standard Ignition Engine Coolant Level Sensor FLS-52 is designed to provide accurate monitoring of coolant levels in select Buick, Oldsmobile, and Pontiac vehicles. This sensor ensures reliable engine temperature management by detecting coolant levels and sending signals to the vehicle’s control system.

  • Connector Gender: Female for secure connection
  • Connector Type: Plug in for easy installation
  • Terminal Gender: Male with 3 terminals
  • Terminal Type: Blade terminals for reliable electrical contact
  • Voltage: 12 volts, compatible with standard automotive electrical systems

Detailed Product Description

The Standard Ignition FLS-52 Engine Coolant Level Sensor features a female plug-in connector designed to fit seamlessly with the vehicle’s wiring harness. It includes three male blade terminals that provide stable and consistent electrical connections, ensuring accurate coolant level readings. Operating at 12 volts, this sensor is engineered to meet the electrical requirements of various Buick, Oldsmobile, and Pontiac models, including the Buick Century, LeSabre, and Oldsmobile 88. The sensor’s design supports efficient communication with the engine control unit to help maintain optimal engine temperature and prevent overheating.

Compatible Vehicles and Applications

This engine coolant level sensor is compatible with multiple GM vehicles, specifically:

  • Buick Century, LeSabre, Park Avenue
  • Oldsmobile 88, 98, Custom Cruiser, Delta 88
  • Pontiac Bonneville

Use the Standard Ignition FLS-52 sensor to address issues related to coolant monitoring and engine temperature management in these models.

Common Issues Addressed by the FLS-52 Sensor

  • Inaccurate coolant level readings causing engine overheating
  • Warning lights triggered by faulty coolant level detection
  • Intermittent electrical connection problems due to worn terminals
  • Engine performance issues related to coolant sensor failure
  • Preventing potential engine damage from low coolant levels

Installation Notes and Tips

When installing the Standard Ignition FLS-52 sensor, ensure the female plug-in connector is securely attached to the vehicle’s wiring harness. Verify that the three male blade terminals are clean and free of corrosion for optimal electrical contact. It is recommended to disconnect the battery before installation to avoid electrical shorts. Properly route wiring to prevent damage from heat or moving parts. Consult the vehicle’s service manual for specific sensor location and replacement procedures.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The FLS-52 Engine Coolant Level Sensor undergoes rigorous quality control testing to maintain consistent functionality. This part typically includes a limited warranty covering defects in material and workmanship. Refer to the product documentation for detailed warranty terms.

BrandStandard Ignition
Part NumberFLS-52
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 23 vehicles. Search below:

YearMakeModelBody TypePositionNotes
1993BuickLeSabreN/A
1993BuickPark AvenueN/A
1993Oldsmobile88SedanN/A
1993Oldsmobile98N/A
1993PontiacBonnevilleN/A
1992BuickLeSabreN/A
1992BuickPark AvenueN/A
1992Oldsmobile88SedanN/A
1992Oldsmobile98N/A
1992OldsmobileCustom CruiserN/A
1992PontiacBonnevilleN/A
1991BuickCenturyN/A
1991BuickPark AvenueN/A
1991Oldsmobile98N/A
1991OldsmobileCustom CruiserN/A
1991OldsmobileDelta 88SedanN/A
1991PontiacBonnevilleN/A
1990Oldsmobile98N/A
1990OldsmobileDelta 88SedanN/A
1990PontiacBonnevilleN/A
1989Oldsmobile98N/A
1989OldsmobileDelta 88SedanN/A
1989PontiacBonnevilleN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

255308885S145171-3560FLS30FLS642FLSA84FS3037

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.