Hella 009107491 Engine Coolant Temperature Sensor

Hella Engine Coolant Temperature Sensor

The Hella 009107491 engine coolant temperature sensor is a bolted, 2-pin NTC sensor built for accurate coolant temperature monitoring in select Mercedes-Benz applications. With a black housing, 12V rating, and M14x1.5 thread size, it matches the OE-style configuration used on covered vehicles.

Compatible With Mercedes-Benz E320, C220, C280, C36 AMG, S320, SL320, 300E, and 300TE applications across 1993-1997 model years, this sensor supports reliable engine temperature input for proper fuel and cooling system operation. The Hella brand line is known for OE-focused electrical and thermal components, and this part follows that same application-specific approach.

Key Features

• Part number: 009107491
• Engine coolant temperature sensor for select Mercedes-Benz models
• NTC sensor design for temperature-dependent resistance signal output
• 2 connector terminals with bolted mounting
• M14x1.5 thread size for direct-fit style installation
• 12V rated electrical specification
• Black finish matches the original part color
• Resistance: 2080 Ohm; temperature range: 80°C

Detailed Description

Hella 009107491 is an engine coolant temperature sensor that reports coolant temperature to the vehicle’s engine management system. The NTC sensor design changes resistance as temperature rises, allowing the control system to read coolant conditions and adjust engine operation accordingly. This part number 009107491 is listed for 1993-1997 Mercedes-Benz coverage, including E320, C220, C280, C36 AMG, S320, SL320, 300E, and 300TE applications.

This sensor cross-references Beck/Arnley 158-1034 and Dorman - HELP 82064 for the same application.

What It Helps Address

• Incorrect coolant temperature readings at the engine control system
• Hard starting or rough running related to temperature signal errors
• Cooling fan or fuel mixture issues tied to faulty temperature input
• Illuminated warning conditions caused by sensor signal faults
• Intermittent drivability concerns on Mercedes-Benz E320, C220, C280, and related models

Installation Notes and Tips

Verify the connector count, thread size, and mounting style before installation. This sensor uses a 2-pin connector, bolted mounting, and M14x1.5 thread, so matching the original connector and port is important for proper fitment. Confirm the vehicle application by year and model before ordering, especially on 1993-1997 Mercedes-Benz 300E and 300TE, where the notes specify 12V and 2-pin bolted configuration.

Quality Assurance

Hella manufactures this coolant temperature sensor to meet the electrical and dimensional requirements of the listed applications. The part is built around the specified NTC sensor format and OE-style mounting details for consistent replacement on covered Mercedes-Benz vehicles.