Four Seasons Engine Coolant Temperature Sensor 20029
Four Seasons Engine Coolant Temperature Sensor 20029 - view 2
Four Seasons Engine Coolant Temperature Sensor 20029 - view 3
Four Seasons Engine Coolant Temperature Sensor 20029
Four Seasons Engine Coolant Temperature Sensor 20029 - view 2
Four Seasons Engine Coolant Temperature Sensor 20029 - view 3

Coolant Temperature Sensor for 1995-1999 Dodge Neon & More - Four Seasons 20029

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$20.99
MPN: 20029
Item Package Quantity: 1
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Four Seasons Engine Coolant Temperature Sensor P/N:20029
Four Seasons Engine Coolant Temperature Sensor P/N:20029
$20.99

Keep your engine management system reading coolant temperature accurately with the Four Seasons Engine Coolant Temperature Sensor (20029) — a direct-fit Neon switch for the 1995-1999 Dodge Neon and 1995-1999 Plymouth Neon. This coolant temp sensor switch measures engine coolant temperature and sends that signal to the engine control module and temperature gauge, information the system relies on for fuel delivery, cooling-fan operation, and the dash readout.

  • Brass construction: for accurate temperature sensing.
  • Zinc-coated terminal: resists corrosion.
  • Color-coded: for easy identification.
  • Includes sealing: comes with the gaskets, o-rings, or seals needed to properly complete the replacement.

When this sensor drifts or fails, you may notice a check engine light, rough idle, hard starting, poor fuel economy, or an inaccurate temperature gauge — signs the coolant temperature sensor may need replacing. Because those symptoms can have other causes, diagnose the sensor first; if a faulty sensor is the cause, this unit replaces it. Backed by Four Seasons' more than 50 years of mobile A/C experience.

Interchange: 1551000 · 4661341 · 207978 · 11120029 · 19188143 · 1712603 · A87978 · CT0124 · SU382

This part cross-references / interchanges with the following part numbers:

1551000, 4661341, 20029, 207978, 11120029, 19188143, 1712603, A87978, CT0124, SU382

Frequently Asked Questions

What does this Four Seasons switch do?

It's an engine coolant temperature sensor that measures coolant temperature and sends the signal to the engine control module and gauge, which the system uses for fuel delivery, cooling-fan control, and the dash readout.

Is this the right switch for my 1995-1999 Dodge Neon?

It's a direct-fit replacement for the 1995-1999 Dodge Neon and 1995-1999 Plymouth Neon. Check the Buyer's Guide tab to confirm your exact vehicle.

What is the sensor made of?

Brass construction for accurate temperature sensing, with a zinc-coated terminal to resist corrosion and a color-coded body for easy identification.

Does it come with seals?

Yes — it contains the gaskets, o-rings, or seals needed to properly complete the replacement.

What are signs this sensor may need replacing?

A check engine light, rough idle, hard starting, poor fuel economy, or inaccurate temperature-gauge readings can point to a failing sensor. Diagnose the cause before replacing.

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