HomeBelts and Cooling > SensorsStandard Ignition FLS-15 Engine Coolant Level Sensor
Part #: FLS-15

Standard Ignition FLS-15 Engine Coolant Level Sensor

⚙️ 12 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$91.89Free 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: Oldsmobile, Buick, and Pontiac, 98, LeSabre, Park Avenue, Riviera, 88, and Bonneville
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Engine Coolant Level Sensor for Buick, Oldsmobile, and Pontiac

The Standard Ignition FLS-15 Engine Coolant Level Sensor is designed to provide accurate monitoring of coolant levels in select Buick, Oldsmobile, and Pontiac vehicles. This sensor ensures your engine maintains optimal temperature by alerting you to low coolant conditions.

  • Connector Gender: Female for secure connection
  • Connector Type: Plug-in design for easy installation
  • Terminal Gender: Male terminals for reliable contact
  • Terminal Quantity: 3 terminals to support proper signal transmission
  • Terminal Type: Blade terminals for durability and consistent performance
  • Voltage: 12V compatible with standard automotive electrical systems

Detailed Description of the FLS-15 Coolant Level Sensor

The FLS-15 Engine Coolant Level Sensor by Standard Ignition is engineered to fit specific models including Buick 88 and 98, Oldsmobile LeSabre and Park Avenue, and Pontiac Bonneville and Riviera. Featuring a female plug-in connector and three male blade terminals, this sensor integrates seamlessly with the vehicle’s existing wiring harness. Operating at 12 volts, it provides precise coolant level readings to the engine control unit, helping prevent overheating and engine damage.

Common Applications and Issues Addressed

  • Detects low engine coolant levels to prevent overheating
  • Alerts driver to coolant leaks or system malfunctions
  • Helps maintain engine temperature within safe operating range
  • Prevents potential engine damage caused by coolant loss
  • Supports proper functioning of the vehicle’s cooling system warning indicators

Installation Notes and Tips

Installation of the Standard Ignition FLS-15 sensor requires disconnecting the vehicle battery to ensure safety. The female plug-in connector and blade terminals allow for straightforward replacement without the need for special tools. Verify compatibility with your specific Buick, Oldsmobile, or Pontiac model before installation. Ensure all electrical connections are secure and free of corrosion to maintain sensor accuracy.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The FLS-15 Engine Coolant Level Sensor undergoes rigorous testing to ensure durability and reliable performance. This part is backed by Standard Ignition’s limited warranty, providing confidence in its quality and longevity.

BrandStandard Ignition
Part NumberFLS-15
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 12 vehicles. Search below:

YearMakeModelBody TypePositionNotes
1996Oldsmobile98N/A
1995BuickLeSabreN/A
1995BuickPark AvenueN/A
1995BuickRivieraN/A
1995Oldsmobile88N/A
1995Oldsmobile98N/A
1995PontiacBonnevilleN/A
1994BuickLeSabreN/A
1994BuickPark AvenueN/A
1994Oldsmobile88SedanN/A
1994Oldsmobile98N/A
1994PontiacBonnevilleN/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:

250608922256089225S145271-356174811FLS29FLS608FLSA38S8116

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